MD-SR50H/50W/60E/60W SERVICE MANUAL

48
MD-SR50H/50W/60E/60W CONTENTS Page SAFETY PRECAUTION FOR SERVICE MANUAL ............................................................................................................... 2 SPECIFICATIONS ................................................................................................................................................................. 3 NAMES OF PARTS ............................................................................................................................................................... 4 OPERATION MANUAL .......................................................................................................................................................... 5 DISASSEMBLY ...................................................................................................................................................................... 8 REMOVING AND REINSTALLING THE MAIN PARTS ......................................................................................................... 9 ADJUSTMENT ...................................................................................................................................................................... 10 NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 23 TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 23 VOLTAGE ............................................................................................................................................................................ 24 BLOCK DIAGRAM ............................................................................................................................................................... 25 SCHEMATIC DIAGRAM ...................................................................................................................................................... 26 WIRING SIDE OF P.W.BOARD ........................................................................................................................................... 28 WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 31 TROUBLESHOOTING ......................................................................................................................................................... 32 FUNCTION TABLE OF IC .................................................................................................................................................... 35 PARTS GUIDE/EXPLODED VIEW PACKING METHOD (MD-SR50H for U.K./SR60E Only) SERVICE MANUAL SHARP CORPORATION No. S2006MDSR50H/ This document has been published to be used for after sales service only. The contents are subject to change without notice. MD-SR50H(BL) MD-SR50H(S) MD-SR50H(YR) MD-SR50W(BL) MD-SR50W(S) MD-SR60E(GL) MD-SR60W(S) • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used. Illustration: MD-SR50H/SR50W Illustration: MD-SR60E/SR60W

Transcript of MD-SR50H/50W/60E/60W SERVICE MANUAL

Page 1: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 1 –

CONTENTSPage

SAFETY PRECAUTION FOR SERVICE MANUAL ............................................................................................................... 2SPECIFICATIONS ................................................................................................................................................................. 3NAMES OF PARTS ............................................................................................................................................................... 4OPERATION MANUAL .......................................................................................................................................................... 5DISASSEMBLY ...................................................................................................................................................................... 8REMOVING AND REINSTALLING THE MAIN PARTS ......................................................................................................... 9ADJUSTMENT ...................................................................................................................................................................... 10NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 23TYPES OF TRANSISTOR AND DIODE .............................................................................................................................. 23VOLTAGE ............................................................................................................................................................................ 24BLOCK DIAGRAM ............................................................................................................................................................... 25SCHEMATIC DIAGRAM ...................................................................................................................................................... 26WIRING SIDE OF P.W.BOARD ........................................................................................................................................... 28WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 31TROUBLESHOOTING ......................................................................................................................................................... 32FUNCTION TABLE OF IC.................................................................................................................................................... 35PARTS GUIDE/EXPLODED VIEWPACKING METHOD (MD-SR50H for U.K./SR60E Only)

SERVICE MANUAL

SHARP CORPORATION

No. S2006MDSR50H/

This document has been published to be usedfor after sales service only.The contents are subject to change without notice.

MD-SR50H(BL)MD-SR50H(S)MD-SR50H(YR)MD-SR50W(BL)MD-SR50W(S)MD-SR60E(GL)MD-SR60W(S)

• In the interests of user-safety the set should be restored to itsoriginal condition and only parts identical to those specified beused.

Illustration: MD-SR50H/SR50W

Illustration: MD-SR60E/SR60W

Page 2: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 2 –

Figure 2-1 Figure 2-2

Precaution to be taken when replacing and servicing the Laser Pickup.The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements.However, the following precautions must be observed during servicing to protect your eyes against exposure to the laser beam.(1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position

outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.(2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior

to shipping.(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.(4) Under no circumstances look directly into the Pickup Lens at any time.(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result

in hazardous radiation exposure.

SAFETY PRECAUTION FOR SERVICE MANUAL

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

Precaution to be taken when replacing and servicing the laser pickup.The following precautions must be observed during servicing to protect your eyes against exposure to the laser.

Warning of possible eye damage when repairing:If the AC adaptor or batteries are connected when the top houising (disc cover) of the unit is removed, and the PLAY key ispressed, the laser will light up during focus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will leak from theopening between the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you must not lookat the laser during repair. Before repairing be sure to disconnect the AC adaptor and remove the batteries.

Magnet Head Laser Beam

Optical Pick-UpMain PWBSpindle motor

MechanismChassis

Laser Diode Properties● Material: GaAlAs● Wavelength: 785 nm● Pulse time:Read mode: 0.8 mW ContinuousWrite mode: max 10 mW 0.5S min cycle 1.5S Repetition

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ KÄYTTÖOHJEESSAMAINITULLA TAVALLA SAATTAA ALTISTAAKÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLENÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN I DENNA BRUKSANVISNINGSPECIFICERAS. KAN ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASERSTRÅLNING, SOMÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

CAUTION

Laser Diode Properties● Material: GaAIAs● Wavelength: 785 nm● Pulse time:

Read mode; 0.8 mW ContinuousWrite mode; max. 10 mW 0.5S

min. cycle 1.5S Repetition

● This Portable MiniDisc Recorder is classified as a CLASS 1 LASER product.● The CLASS 1 LASER PRODUCT label is located on the bottom.● Use the Portable MiniDisc Recorder only in accordance with the instructions given in

this manual and do not attempt to interfere with the interlock switch or make anyother adjustment as this may result in exposure to hazardous radiation. (MD-SR50H/SR60E)

LASER KLASSE 1LUOKAN 1 LASERLAITEKLASS 1 LASERAPP ARAT

(MD-SR50W/SR60W)(MD-SR50H)

Magnet head

Optical pick-upTop Cabinet

Page 3: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 3 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TOTHE OPERATION MANUAL.

SPECIFICATIONS

Specifications for this model are subject to change without priornotice

Input sensitivity:

Output level: (MD-SR50H/SR50W)

Output level: (MD-SR60W/SR60E)

Dimensions: Width: 99.9 mm (3-15/16")Height: 22.9 mm (29/32")Depth: 77.9 mm (3-3/32")

Weight: 168 g (0.37 lbs.) without battery(MD-SR50H/SR50W)Weight: 191 g (0.42 lbs.) with rechargeable(MD-SR60W/SR60E) batteryInput socket: Line/optical digital, microphone

(powered by the main unit)Output socket: Earphones (impedance: 32 ohms)(MD-SR50H/SR50W)Output socket: Headphones (impedance: 16 ohms)/(MD-SR60W/SR60E) remote control unit

MiniDisc RecorderType: Portable MiniDisc recorderSignal readout: Non-contact, 3-beam semi-conductor

laser pick-upAudio channels: Stereo 2 channels/monaural (longplay

mode) 1 channelFrequency response: 20 - 20,000 Hz (± 3 dB)Rotation speed: Approx. 400 - 900 rpmError correction: ACIRC (Advanced Cross Interleave

Reed-Solomon Code)Coding: ATRAC (Adaptive Transform

Acoustic Coding), 24-bit computedtype

Recording method: Magnetic modulation overwritemethod

Sampling frequency: 44.1kHz (32 kHz and 48kHz signalsare converted to 44.1kHz, and thenrecorded)

Wow and flutter: Unmeasurable(less than ±0.001% W. peek)

GeneralPower source: DC 5V : AC adaptor (AC 220-230V, 50/60 Hz)(MD-SR50H) DC 1.5V: Commercially available, "AA" (LR6)

size, alkaline battery x 1DC 1.2V: Optional rechargeable Nickel-Metal

Hydride battery (AD-N70BT) x 1DC 4.5V: Optional car adaptor, AD-CA20X

(for cars with a 12-24V DC negativeearth electrical system)

Power source: DC 5V : AC adaptor (AC 110-240V, 50/60 Hz)(MD-SR50W) DC 1.5V: Commercially available, "AA" size

(LR6), alkaline battery x 1DC 1.2V: Optional rechargeable Nickel-Metal

Hydride battery (AD-N70BT) x 1DC 4.5V: Separately available car adaptor,

AD-CA20X (for cars with a 12-24VDC negative earth electrical system)

Power source: DC 1.2V: Rechargeable Nickel-Metal Hydride(MD-SR60E) battery (AD-N70BT) x 1

DC 5V : AC adaptor (AC 230-240V, 50/60 Hz)DC 1.5V: Commercially available, "AA" size

(LR6), alkaline battery x 1DC 4.5V: Separately available car adaptor,

AD-CA20X (for cars with a 12-24VDC negative earth electrical system)

Power source: DC 1.2V: Rechargeable Nickel-Metal Hydride(MD-SR60W) battery (AD-N70BT) x 1

DC 5V : AC adaptor (AC 220V, 50 Hz)DC 1.5V: Commercially available, "AA" size

(LR6), alkaline battery x 1DC 4.5V: Separately available car adaptor,

AD-CA20X (for cars with a 12-24VDC negative earth electrical system)

Power consumption: 7W (AC adaptor)(MD-SR50H/60E)Power consumption: 0.15A (AC adaptor)(MD-SR50W)Power consumption: 6W, 0.06A (AC adaptor)(MD-SR60W)Output power: RMS; 20 mW (10 mW + 10 mW) (0.2 % T.H.D.)Charging time: Approx. 3.5 hours (90%)

Approx. 5.5 hours (fully charged)(When using the AC adaptor included with the unit)

Battery life: (MD-SR50H/SR50W)

Battery life: (MD-SR60W/SR60E)

The continuous recording time is for analogue input when thevolume level is set to "VOL 0"The continuous play time shows the value when the volume levelis set to "VOL 15"The above values are the standard values when the unit is charg-ed and used at an ambient temperature of 20˚C (68˚F).

Earphones — 10 mW + 10 mW 32 ohms

LINE 250 mV (-12 dB) — 10 kohms

Maximumoutput level

Loadimpedance

Specifiedoutput

When using a commercially available,high capacity, "AA" (LR6) size,alkaline battery

When using the optional rechargeablebatter AD-N70BT(full charged)

Continuous recordingApprox. 3 hours

Continuous recordingApprox. 4.5 hours

Continuous playApprox. 7 hours

Continuous playApprox. 6.5 hours

MIC H 0.25 mV 10 kohms

MIC L 2.5 mV 10 kohms

LINE 100 mV 20 kohms

Recordinglevel

Referenceinput level

inputimpedance

When using a commercially available,high capacity, "AA" size (LR6),alkaline battery

When using the rechargeable batter(full charged) included with the unit

Continuous recordingApprox. 3 hours

Continuous recordingApprox. 4.5 hours

Continuous playApprox. 7 hours

Continuous playApprox. 6.5 hours

Headphones — 10 mW + 10 mW 16 ohms

LINE 250 mV (-12 dB) — 10 kohms

Maximumoutput level

Loadimpedance

Specifiedoutput

The operation time when using an alkaline battery may bedifferent, depending on the type and manufacturer of the batteryand on the operating temperature.

Page 4: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

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NAMES OF PARTS

1. Monaural Long-Play Mode Indicator 2. Record Indicator 3. Level Meter 4. Fast Play Indicator 5. Repeat Indicator 6. TOC Indicator 7. Battery Indicator 8. Random Indicator 9. Track Number Indicator10. Character/Time Information Indicator11. Synchro Recording Indicator12. Disc Mode Indicator13. Disc Name Indicator14. Track Name Indicator15. Remaining Recording Time Indicator16. Total Track Number Indicator

17. Volume Down/Cursor Button18. Volume Up/Cursor Button19. Record/Track Mark Button20. Stop/Power Off/Charge Button21. Play/Pause Button22. Display/Character Select Button23. Edit/Auto Mark/Time Mark Button24. Mode Button25. Bass/Delete Button26. Fast Reverse/Recording Level Down/

Name Select Button27. Fast Forward/Recording Level Up/

Name Select Button28. Enter/Fast Play/Synchro Button

29. Earphones/Line Output Socket30. Optical/Line Input Socket31. Microphone Input Socket32. Open Lever

33. 5V DC Input Socket34. Battery Cover35. Hold Switch

■ Remote control unit

1. Headphones Socket 2. Bass/Delete/Track Mark Button 3. Volume Down/Cursor Button 4. Volume Up/Cursor Button 5. Hold Switch 6. Play/Pause Button 7. Fast Reverse/Recording Level Down/

Name Select Button 8. Fast Forward/Recording Level Up/

Name Select Button 9. Stop/Power Off Button

■ Remote control unit 1 2 3 4 5 67

8910

11121314

15 16

22

17

28

18 20 21

23 27262524

19

3229

3130

35

3334

9

42 51

6 7 8

3

9

Illustration: MD-SR60E/SR60W Only

Page 5: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 5 –

OPERATION MANUALP

OW

ER

SO

UR

CE

You

can

pow

er t

his

unit

with

an

AC

ada

ptor

or

a co

mm

erci

ally

ava

ilabl

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R6,

“A

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).Yo

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ower

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it w

ith a

rec

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eabl

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tter

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arat

ely.

21

4

3

5

For

MD

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50H

AC

220

-230

V, 5

0/60

Hz

For

MD

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50W

AC

110

-240

V, 5

0/60

Hz

For

MD

-SR

60E

AC

230

-240

V, 5

0/60

Hz

For

MD

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60W

AC

220

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0 H

z

Inse

rt s

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all t

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ay in

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To th

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C IN

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ech

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n th

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use

d fo

r the

first

tim

e or

whe

n yo

u w

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to u

se it

afte

r a

long

per

iod

of d

isus

e, b

e su

re to

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rge

it fu

lly.

1O

pen

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over

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Slid

e th

e ba

ttery

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it w

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oto

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outs

ide

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out b

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ak.

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able

bat

tery

acc

ord-

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to th

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larit

y m

arke

d on

the

botto

mof

the

unit.

3C

lose

the

batte

ry c

over

.

4P

lug

the

AC

ada

ptor

into

the

AC

soc

ket,

and

then

inse

rt th

e pl

ug o

n th

e A

C a

dap-

tor

lead

into

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DC

IN 5

V s

ocke

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the

:OF

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• ■

) b

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●“

” w

ill a

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d th

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ttery

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beg

in c

harg

ing.

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fte

r a

bo

ut

3.5

h

ou

rs

ha

ve

pa

sse

d,

“ ”

will

go

out.

Thi

s in

dica

tes

that

the

batte

ry c

harg

-in

g is

abo

ut 9

0% c

ompl

ete.

●To

cha

rge

the

batte

ry f

ully

, co

ntin

uech

argi

ng fo

r ab

out 2

mor

e ho

urs.

(In

this

cas

e, y

ou d

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t nee

d to

pre

ssth

e :O

FF

/CH

RG

( • ■

) b

utto

n. E

ven

ifth

e :O

FF

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RG

( •

■ )

bu

tton

is

pres

sed,

” w

ill n

ot a

ppea

r.)

No

tes:

●A

fter c

harg

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has

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com

plet

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heA

C a

dapt

or m

ay b

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ft co

nnec

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(For

exa

mpl

e, w

hen

char

ging

at n

ight

.)●

The

bat

tery

will

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char

ged

whe

n th

epo

wer

to th

e m

ain

unit

is tu

rned

on.

●D

o no

t for

ce th

e ba

ttery

cov

er o

pen

too

far.

●D

o no

t use

a r

echa

rgea

ble

batte

ry o

r an

AC

ada

ptor

oth

er t

han

thos

e sp

ecifi

ed.

●T

he c

harg

ing

time

will

var

y, d

epen

ding

on th

e co

nditi

on o

f the

bat

tery

.●

Whe

n th

e ba

ttery

is c

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r th

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sttim

e or

is c

harg

ed a

fter

not b

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use

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r a lo

ng p

erio

d, th

e op

erat

ing

time

may

be s

hort

er th

an n

orm

al.T

he b

atte

ry li

few

ill r

ecov

er w

ith n

orm

al u

se i.

e. c

harg

-in

g an

d di

scha

rgin

g.●

To a

void

sho

rten

ing

the

serv

ice

life

of th

eba

ttery

onl

y re

char

ge th

e ba

ttery

afte

r it

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RE

CO

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US

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TH

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PT

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L D

IGIT

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CA

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E

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s is

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met

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used

for

reco

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gi-

tal s

igna

ls fr

om C

Ds

or M

Ds

exac

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s th

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on

the

orig

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. Com

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to th

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nit

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the

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TE

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C b

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tart

the

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the

equ

ipm

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conn

ecte

d to

this

uni

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anu

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eco

rdin

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1P

lace

the

unit

in th

e re

cord

ing

stan

d-by

mod

e. (

Per

form

ste

ps 1

- 3

in th

e “S

yn-

chro

rec

ordi

ng”

sect

ion.

)

2P

ress

the

b

utto

n, a

nd t

hen

star

tpl

ayba

ck o

n th

e eq

uipm

ent

conn

ecte

dto

this

uni

t.

●W

hen

reco

rdin

g fr

om d

igita

l inp

uts,

it is

not

nece

ssar

y to

adj

ust

the

reco

rdin

gle

vel.

No

tes:

●T

his

unit

inco

rpor

ates

a s

ampl

ing

rate

conv

erte

r.W

hen

this

uni

t is

con

nect

ed t

o di

gita

leq

uipm

ent s

uch

as C

S/B

S tu

ners

or D

AT

tape

reco

rder

s th

at u

se a

diff

eren

t sam

-pl

ing

freq

uenc

y (3

2 kH

z or

48

kHz)

, re-

cord

ings

can

stil

l be

mad

e. (

The

sam

-pl

ing

freq

uenc

y of

this

uni

t is

44.1

kH

z.)

●W

hen

mak

ing

a di

gita

l rec

ordi

ng fr

om a

port

able

CD

pla

yer

(if t

he p

laye

r ha

s a

soun

d sk

ip p

reve

ntio

n fu

nctio

n an

d th

isfu

nctio

n is

turn

ed o

n) th

e op

tical

out

put

will

dro

p ou

t and

dig

ital r

ecor

ding

will

not

be p

ossi

ble.

Be

sure

to

turn

the

sou

ndsk

ip p

reve

ntio

n fu

nctio

n of

f.

Th

ere

are

case

s w

her

e d

igita

l rec

ord

ing

may

be

imp

oss

ible

.In

the

fol

low

ing

case

s di

gita

l rec

ordi

ng is

impo

ssib

le,

even

if

you

are

usin

g di

gita

lca

bles

.

Whe

n yo

u at

tem

pt t

o m

ake

a ne

w d

igita

lre

cord

ing

from

a tr

ack

that

was

dig

itally

re-

cord

ed o

n a

Min

iDis

c.●

Min

iDis

cs a

re d

esig

ned

so th

at o

nly

first

gene

ratio

n di

gita

l cop

ies

can

be m

ade.

Fur

ther

dig

ital c

opie

s ar

e pr

even

ted

byth

e S

CM

S (

Ser

ial

Cop

y M

anag

emen

tS

yste

m).

Pla

ybac

kD

igita

l cab

le

CD

pla

yer,

MD

play

er, e

tc. D

igita

lly r

ecor

ded

Min

iDis

c

Ana

logu

e re

cord

ing

ispo

ssib

le.

Rec

ordi

ng

Pla

ybac

kD

igita

l cab

leR

ecor

ding

MD

pla

yer

Page 6: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 6 –

CO

NV

EN

IEN

T O

PE

RA

TIO

N O

F T

HE

UN

IT

< H

ow

to

rea

d t

he

bat

tery

ind

icat

or

>

●W

hen

the

batte

ry is

com

plet

ely

disc

harg

ed,

the

batte

ry in

dica

tor w

ill fla

sh. R

echa

rge

the

batte

ry o

r rep

lace

the

alka

line

batte

ry w

itha

new

one

.●

Whe

n th

e ba

ttery

has

run

com

plet

ely

out,

“BA

TT

EM

PT

Y”

will

app

ear.

The

n, t

hepo

wer

will

be d

isco

nnec

ted

auto

mat

ical

ly.

No

tes:

●If

you

use

the

batte

ry w

hich

you

sto

pped

char

ging

hal

fway

, “”

may

app

ear.

Itdo

es n

ot m

ean

that

the

batte

ry is

com

-pl

etel

y ch

arge

d.●

Whe

n us

ing

the

unit

with

an

alka

line

bat-

tery

or

a re

char

geab

le b

atte

ry, t

he b

atte

ryin

dica

tor w

ill no

t cor

rect

ly d

ispl

ay th

e re

mai

n-in

g ca

paci

ty fo

r app

roxi

mat

ely

10 s

econ

dsaf

ter t

he p

ower

has

bee

n tu

rned

on.

●W

hen

the

AC

ada

ptor

incl

uded

with

this

uni

tor

a s

epar

atel

y av

aila

ble

car

adap

tor

isus

ed, t

he b

atte

ry in

dica

tor w

ill no

t be

show

n.●

The

num

ber

of b

ars

show

n in

the

batte

ryin

dica

tor

may

inc

reas

e or

dec

reas

e, d

e-pe

ndin

g on

the

oper

atio

n be

ing

perfo

rmed

.Th

is is

nor

mal

.

■To

pre

ve

nt

the

un

it f

rom

be

ing

op

erat

ed b

y m

ista

ke

To a

void

acc

iden

tal

oper

atio

n of

the

uni

t,us

e th

e ho

ld fu

nctio

n.

Mov

e th

e H

OLD

sw

itch

to t

he s

afet

y po

si-

tion

(dire

ctio

n in

dica

ted

by th

e ar

row

).

●W

hen

the

unit

is in

the

hold

mod

e, p

ress

-in

g th

e bu

ttons

will

hav

e no

affe

ct.

●To

ca

nce

l th

e h

old

mo

de

, m

ove

th

eH

OLD

sw

itch

away

fro

m t

he s

afet

y po

-si

tion

(the

opp

osite

dire

ctio

n of

the

ar-

row

).

Bat

tery

indi

cato

r

Sin

ce th

e ba

ttery

leve

l is

very

low

, you

cann

ot s

tart

rec

ordi

ng o

r ed

iting

.

Whe

n th

e ba

ttery

leve

l is

high

Whe

n th

e ba

ttery

leve

l is

very

low

■C

hec

kin

g t

he

rem

ain

ing

am

ou

nt

of

bat

tery

leve

l

The

rem

aini

ng a

mou

nt o

f ba

ttery

lev

el i

ssh

own

by th

e ba

ttery

indi

cato

r (

) d

ur-

ing

oper

atio

n.

If th

e ho

ld fu

nctio

n is

act

ive

whi

lst t

he p

ower

is t

urne

d of

f, th

e po

wer

can

not

be t

urne

don

by

mis

take

and

the

bat

tery

will

not

be

acci

dent

ally

dra

ined

.

Rem

ote

cont

rol u

nit

Mai

nun

it

Can

not b

e op

erat

edfr

om e

ither

the

rem

ote

cont

rol u

nit o

rth

e m

ain

unit.

Can

onl

y be

ope

rate

dfr

om th

e m

ain

unit.

Can

onl

y be

ope

rate

dfr

om th

e re

mot

eco

ntro

l uni

t.

Can

be

oper

ated

from

eith

er th

ere

mot

e co

ntro

l uni

t or

the

mai

n un

it.

Hol

d

Hol

d

Can

cel

Hol

d

Can

cel

Hol

d

Can

cel

Can

cel

For

MD

-SR

60E

/SR

60W

Onl

y

For

MD

-SR

60E

/SR

60W

Onl

y

TR

OU

BL

ES

HO

OT

ING

■M

ois

ture

co

nd

ensa

tio

n

In t

he

follo

win

g c

ases

, co

nd

ensa

tio

nm

ay f

orm

insi

de

the

un

it.

●S

hort

ly a

fter

turn

ing

on a

hea

ter.

●W

hen

the

unit

is p

lace

d in

a ro

om w

here

ther

e is

exc

essi

ve s

team

or

moi

stur

e.●

Whe

n th

e un

it is

mov

ed f

rom

a c

ool

plac

e to

a w

arm

pla

ce.

Wh

en th

e u

nit

has

co

nd

ensa

tio

n in

sid

e,th

e d

isc

sig

nal

s ca

nn

ot b

e re

ad, a

nd

the

un

it m

ay n

ot

fun

ctio

n p

rop

erly

.●

If th

is h

appe

ns, r

emov

e th

e di

sc.

The

con

dens

atio

n sh

ould

eva

pora

te in

appr

oxim

atel

y 1

hour

. The

uni

t will

then

func

tion

prop

erly

.

Man

y po

tent

ial “

prob

lem

s” c

an b

e re

solv

ed b

y th

e ow

ner

with

out c

allin

g a

serv

ice

tech

ni-

cian

.If

som

ethi

ng s

eem

s to

be

wro

ng w

ith th

is p

rodu

ct, c

heck

the

follo

win

g be

fore

cal

ling

your

auth

oris

ed S

HA

RP

dea

ler

or s

ervi

ce c

entr

e.

■If

tro

ub

le o

ccu

rs

Whe

n th

is p

rodu

ct i

s su

bjec

ted

to s

tron

gex

tern

al i

nter

fere

nce

(mec

hani

cal

shoc

k,ex

cess

ive

stat

ic e

lect

ricity

, ab

norm

al s

up-

ply

volta

ge d

ue t

o lig

htni

ng,

etc.

) or

if it

isop

erat

ed in

corr

ectly

, it m

ay m

alfu

nctio

n.If

such

a p

robl

em o

ccur

s, d

o th

e fo

llow

ing:

1.U

nplu

g th

e A

C a

dapt

or f

rom

the

AC

sock

et.

2.R

emov

e th

e ba

ttery

.3.

Leav

e th

e un

it co

mpl

etel

y un

pow

ered

for

appr

oxim

atel

y 30

sec

onds

.

4.P

lug

the

AC

ada

ptor

bac

k in

to t

he A

Cso

cket

and

ret

ry th

e op

erat

ion.

If st

rang

e so

unds

, sm

ell o

r sm

oke

com

e ou

tof

the

unit

or a

n ob

ject

is d

ropp

ed in

to th

eun

it, r

emov

e th

e A

C a

dapt

or f

rom

the

AC

sock

et

imm

ed

iate

ly

an

d

con

tact

a

nau

thor

ised

SH

AR

P s

ervi

ce c

entr

e.

PR

OB

LE

MC

AU

SE

Th

e u

nit

do

es n

ot

turn

on

.

●Is

the

AC

ada

ptor

dis

conn

ecte

d?●

Is th

e ba

ttery

exh

aust

ed?

●Is

the

unit

in th

e ho

ld m

ode?

●H

as c

onde

nsat

ion

form

ed in

side

the

unit?

●Is

the

unit

bein

g in

fluen

ced

by m

echa

nica

l sho

ck o

r by

stat

ic e

lect

ricity

?

●Is

the

volu

me

set t

oo lo

w?

●Is

the

earp

hone

s pl

ugge

d in

?●

Are

you

tryi

ng to

pla

y a

Min

iDis

c w

ith d

ata

on it

inst

ead

of a

Min

iDis

c co

ntai

ning

mus

ic?

●Is

the

unit

in th

e ho

ld m

ode?

●Is

the

batte

ry e

xhau

sted

?

●Is

the

batte

ry e

xhau

sted

?●

Is th

e un

it be

ing

subj

ecte

d to

exc

essi

ve v

ibra

tion?

●H

as t

he t

rack

num

ber

or c

hara

cter

inf

orm

atio

n be

enw

ritte

n on

the

disc

yet

?●

Is th

e un

it in

the

reco

rdin

g or

edi

ting

mod

e?

●Is

the

Min

iDis

c pr

otec

ted

agai

nst a

ccid

enta

l era

sure

?●

Is th

e un

it co

nnec

ted

prop

erly

to th

e ot

her

equi

pmen

t?●

Is th

e A

C a

dapt

or u

nplu

gged

or

did

a po

wer

failu

re o

c-cu

r w

hils

t rec

ordi

ng o

r ed

iting

?●

Is th

e un

it in

the

hold

mod

e?●

Is a

n op

tical

sig

nal b

eing

out

put f

rom

the

exte

rnal

equ

ip-

men

t?R

ead

the

oper

atio

n m

anua

l for

the

exte

rnal

equ

ipm

ent.

No

so

un

d is

hea

rd fr

om

the

earp

ho

nes

.

Whe

n th

e op

erat

ion

but-

ton

s ar

e p

ress

ed,

the

un

it d

oes

no

t re

spo

nd

.

So

me

sou

nd

s ar

esk

ipp

ed.

Th

e M

iniD

isc

can

no

t be

ejec

ted

.

Rec

ord

ing

an

d e

dit

ing

are

imp

oss

ible

.

Page 7: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 7 –

Whe

n th

e nu

mbe

r of t

rack

s us

ed re

ache

sth

e lim

it, r

egar

dles

s of

the

rem

aini

ng r

e-co

rdin

g tim

e, f

urth

er r

ecor

ding

will

be

impo

ssib

le.

(Max

imum

num

ber

of tr

acks

: 255

)If

a M

iniD

isc

has

been

rec

orde

d or

ed-

ite

d r

ep

ea

ted

ly o

r if

a M

iniD

isc

ha

ssc

ratc

hes

on it

, it m

ay n

ot b

e po

ssib

le to

reco

rd th

e m

axim

um n

umbe

r of t

rack

s on

it. If th

ere

are

scra

tche

s on

a d

isc,

the

uni

tw

ill a

utom

atic

ally

avo

id re

cord

ing

in th

ose

area

s. T

he re

cord

ing

time

will

be

redu

ced.

Whe

n th

e re

mai

ning

rec

ordi

ng t

ime

of a

disc

is d

ispl

ayed

, sh

ort

trac

ks le

ss t

han

12 s

econ

ds lo

ng m

ay n

ot b

e in

clud

ed in

the

tota

l.

For

Min

iDis

cs o

n w

hich

repe

ated

reco

rd-

ing

an

d e

diti

ng

op

era

tion

s w

ere

pe

r-fo

rmed

, the

CO

MB

INE

func

tion

may

not

wor

k.

A c

lust

er (

abou

t 2 s

econ

ds)

is n

orm

ally

the

min

imum

uni

t of r

ecor

ding

. So,

eve

n if

a tra

ckis

less

than

2 s

econ

ds lo

ng, i

t will

use

abou

t2

seco

nds

of s

pace

on

the

disc

.Th

eref

ore,

the

time

actu

ally

ava

ilabl

e fo

r re-

cord

ing

may

be

less

than

the

rem

aini

ng ti

me

disp

laye

d.If

ther

e ar

e sc

ratc

hes

on d

iscs

, th

ose

sec-

tions

will

be a

utom

atic

ally

avo

ided

(no

reco

rd-

ing

will

be p

lace

d in

thos

e se

ctio

ns).

Ther

e-fo

re, t

he re

cord

ing

time

will

be re

duce

d.

For

Min

iDis

cs o

n w

hich

repe

ated

reco

rd-

ing

and

editi

ng w

ere

perf

orm

ed,

som

eso

unds

may

be

skip

ped

whi

lst c

uein

g an

dre

view

ing.

If t

he

re a

re s

cra

tch

es

or

du

st o

n a

Min

iDis

c, th

e tr

ack

num

bers

follo

win

g th

attr

ack

will

be

incr

ease

d by

one

.

MIN

IDIS

C S

YS

TE

M L

IMIT

AT

ION

S

Min

iDis

cs a

re r

ecor

ded

usin

g a

diffe

rent

sys

tem

tha

n is

use

d fo

r ca

sset

te t

apes

or

DA

Tre

cord

ings

. T

here

fore

, th

e fo

llow

ing

cond

ition

s m

ay b

e en

coun

tere

d, d

epen

ding

on

how

the

disc

has

bee

n re

cord

ed o

r ed

ited.

The

se a

re d

ue to

sys

tem

lim

itatio

ns, a

nd s

houl

d be

cons

ider

ed n

orm

al.

Eve

n i

f th

e m

axim

um

rec

ord

ing

tim

e o

f a

Min

iDis

c h

as n

ot

bee

nre

ach

ed,

“DIS

C F

UL

L”

or

“TO

CF

UL

L”

may

be

dis

pla

yed

.

Eve

n i

f th

e n

um

ber

of

trac

ks a

nd

the

re

co

rdin

g

tim

e

ha

ve

n

ot

reac

hed

th

e li

mit

, “D

ISC

FU

LL

”m

ay b

e d

isp

laye

d.

Eve

n i

f se

vera

l sh

ort

tra

cks

are

eras

ed,

the

rem

ain

ing

rec

ord

ing

tim

e m

ay n

ot

sho

w a

n in

crea

se.

Two

tra

cks

may

no

t b

e co

mb

ined

in e

dit

ing

.

Th

e to

tal o

f th

e re

cord

ed t

ime

and

tim

e re

mai

nin

g o

n a

dis

c m

ay n

ot

add

up

to

th

e m

axim

um

po

ssib

lere

cord

ing

tim

e.

Wh

en r

eco

rded

tra

cks

are

pla

yed

bac

k u

sin

g th

e cu

e an

d r

evie

w o

p-

erat

ion

s, s

om

e so

un

ds

may

be

skip

ped

.

A t

rack

nu

mb

er c

an b

e cr

eate

d i

nth

e m

idd

le o

f a

trac

k.

ER

RO

R M

ES

SA

GE

S

Err

or

mes

sag

esR

emed

yM

ean

ing

BL

AN

K M

D

BA

TT

EM

PT

Y●

The

bat

tery

is r

un d

own.

●C

harg

e th

e re

char

geab

le b

atte

ry o

rre

plac

e th

e al

kalin

e ba

ttery

(or

use

the

AC

ada

ptor

for

pow

er).

●N

othi

ng is

rec

orde

d.●

Rep

lace

the

disc

with

a re

cord

ed d

isc.

Can

’t C

OP

Y●

No

copy

can

be

mad

e be

caus

e of

the

SC

MS

cop

yrig

ht s

yste

m.

●R

ecor

d us

ing

the

anal

ogue

cab

le.

Can

’t E

DIT

●A

trac

k ca

nnot

be

edite

d.●

Cha

nge

the

stop

pos

ition

of t

he tr

ack

and

then

try

editi

ng it

.

*: N

umbe

r or

Sym

bol.

PL

AY

MD

●Y

ou t

ried

to r

ecor

d on

a p

layb

ack-

only

dis

c.●

Rep

lace

it w

ith a

rec

orda

ble

disc

.

Can

’t R

EA

D*

●T

he d

isc

data

can

not

be r

ead

be-

caus

e th

e di

sc is

dam

aged

.●

Rel

oad

the

disc

or

repl

ace

it.●

Rep

lace

it w

ith a

noth

er re

cord

ed d

isc.

Can

’t R

EC

●R

ecor

ding

can

not

be p

erfo

rmed

cor

-re

ctly

due

to v

ibra

tion

or s

hock

in th

e un

it.●

Re-

reco

rd o

r re

plac

e it

with

ano

ther

reco

rdab

le d

isc.

Can

’t S

TAM

P●

Edi

ting

is im

poss

ible

.●

Che

ck th

e nu

mbe

r of

trac

ks.

Can

’t W

RIT

E●

Can

not

save

the

TO

C i

nfor

mat

ion

corr

ectly

to a

Min

iDis

c.(A

larg

e po

r-tio

n of

the

disc

has

bee

n da

mag

ed.)

●R

epla

ce t

he d

isc

with

ano

ther

re-

cord

able

dis

c.

DE

FE

CT

●T

he d

isc

is s

crat

ched

.●

If th

e so

und

you

hear

is n

ot ri

ght,

try

reco

rdin

g ag

ain.

●R

epla

ce t

he d

isc

with

ano

ther

re-

cord

able

dis

c.

DIS

C F

UL

L●

The

dis

c is

out

of r

ecor

ding

spa

ce.

●R

epla

ce i

t w

ith a

noth

er r

ecor

dabl

edi

sc.

HO

LD

LO

CK

ED

NO

DIS

C

Er-

MD

**

NO

SIG

NA

L

●P

oor c

onne

ctio

n of

the

digi

tal c

able

.●

No

outp

ut s

igna

l com

es o

ut fr

om th

eex

tern

al u

nit t

o pl

ayba

ck.

●T

he u

nit i

s in

the

hold

mod

e.●

Ret

urn

the

HO

LD s

witc

h to

its

orig

i-na

l pos

ition

.

●T

he O

PE

N le

ver

was

mov

ed d

urin

gre

cord

ing

or e

ditin

g.●

Turn

off

the

pow

er a

nd r

emov

e th

eM

iniD

isc.

●A

dis

c ha

s no

t bee

n lo

aded

.●

Load

a d

isc.

●Y

ou h

ave

com

e to

the

con

clus

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Page 8: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 8 –

1 Bottom Cabinet 1. Screw ..................... (A1) x6 8-1

2 Top Cabinet 1. Open the Top cabinet. 8-12. Open the Battery Cover.3. Screw ..................... (B1) x44. Flexible PWB .......... (B2) x2 8-2

3 Main PWB 1. Screw .................... (C1) x4 8-22. Flexible PWB ......... (C2) x23.Solder joint ............. (C3) x2

4 Mechanism Unit 1. Raise the rear part, and 8-3 remove in the arrow direction.

DISASSEMBLY

Cares before disassemblingWhen assembling the machine after disassembling orrepair, observe the following requirements so as to ensuresafety and performance.1. Remove the batteries from the machine, and take out the

mini-disc.2. When assembling after repair, be sure to restore the

initial location of wires.Since the screws are small, incorrect fixing may result inmalfunction.

3. When repairing, pay utmost attention to static electricityof IC.

REMOVAL PROCEDURESTEP FIGURE

Figu re 8-1

Figure 8-2Figure 8-3

Caution:Carefully handle the main PWB and flexible PWB. After removing theflexible PWB (1*) for the optical pickup from the connector, do nottouch directly the front end of flexible PWB with your hand so as toprevent damage of optical pickup by static electricity.

(B1)x2ø1.4x2mm

(B1)x2ø1.4x2mm

(A1)x2ø1.4x2mm

(A1)x2ø1.4x2mm

(A1)x2ø1.4x2mm

Open Lever

Bottom Cabinet

Top Cabinet

(A1)x2ø1.4x2mm

Battery Cover

Mechanism Unit

(C3)x1(C3)x1

pullpull

pull

pull

pull

pull

Put the fold on the connector, and apply with the felt. Sagging may result in contact with the sheet matal

Felt

(C1)x4ø1.7x2.5mm

Main PWB

(B2)x2

(C2)x1

(C2)x1*

Mechanism Unit

Page 9: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 9 –

REMOVING AND REINSTALLING THE MAIN PARTSRemove the mechanism according to the disassembling meth-ods 1 to 4. (See Page 8.)

How to remove the spindle motor (See Fig. 9-1.)1. Remove the solder joint (A1) x 1 of flexible PWB.2. Remove the screws (A2) x 3 pcs., and remove the spindle

motor.

Figure 9-5

Figure 9-1

Figure 9-2

Figure 9-3

How to reinstall the optical pickup unit(See Fig. 9-5.)1. Remove the screw (E1) x 1 pc.2. Slowly raise the optical pickup.

How to remove the magnetic head (See Fig. 9-4.)1. Remove the screws (D1) x4 which connects the magnetic

head to the head relay flexible PWB, remove the springwashers (D2) x 2 and remove the soldering joints (D3) x 2.

Note:Mount carefully so as not to damage the magnetic head.(If the gear is damaged, noise is caused.)

Figure 9-4

How to remove the Lift motor (See Fig. 9-2.)1. Remove the solder joints (B1) x 2 of head up/down motor

lead wire.2. Remove the screw (B2) x 1 pc., and remove the flexible

PWB.3. Remove the screw (B3) x 1 pc., and remove the head up/

down motor.Note:Take care so that the motor gear is not damaged.(If the gear is damaged, noise is caused.)

How to remove the sled motor (See Fig. 9-3.)1. Remove the stop washer (C1) x 1 pc., and remove the drive

gear (C2) x 1 pc.2. Remove the screws (C3) x 2 pcs., and remove the sled

motor.3. Remove the solder joints (C4) x 2 of flexible PWB.Note:Take care so that the motor gear is not damaged.(If the gear is damaged, noise is caused.)

(A2)x3ø1.4x2.8mm

MD Mechanism

Spindle Motor

Mechanism Flexible PWB Solder joint @(A1)x1

(B2)x1ø1.4x1.5mm

(B3)x1ø1.4x5.5mm

MD Mechanism

Remove theSolder joint(B1)x2

Lift Motor

(E1)x1ø1.7x3mm

Guide Shaft

Optical Pickup Unit

MD Mechanism

Thrust Plate Spring

Stop Washer(C1)x1

MD Mechanism

Sled Motor

(C3)x2ø1.4x1.2mm

Driver Gear(C2)x1

Mechanism Flexible PWB Solder joint (C4)x2

Solder joint(D3)x2

(D1)x1ø1.4x1.5mm

(D1)x1ø1.2x1.6mm

(D1)x2ø1.4x2.2mm

Magnetic Head

MD Mechanism

(D2)x2Spring joint

Page 10: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 10 –

Entering the TEST mode1. Setting at port (power nonconnected state)

(1) Set the port as follows. TEST1 : "Low" (TP416) TEST0 : "High"(2) Turn the Power ON.(3) Test Mode START [ T E S T _ ]

2. Setting by special button operation (in standby state)(1) Holding down the DISP button and ENTER button, press the PLAY button.(2) Normal mode setting initialization (BASS setting, VOL setting, etc.)*Since the unit is changed to the setting for production line inspection , be sure to set it to the default setting state in the following default setting procedure before returning it to the user.(3) Indication of microcomputer version for one second [ Y 1 9 A b X ]

(4) Whole LCD lighting for 2 seconds(5) Test Mode START [ T E S T _ ]*When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5).

1 High reflection disc MMD-110 (TEAC Test MD) 88GMMD-110

2 Low reflection disc MMD-212 (TEAC Test MD) 74-minute disc 88GMMD-212

3 Low reflection disc MMD-213A (TEAC Test MD) 80-minute disc 88GMMD-213A

4 Low reflection disc Recording minidisc UDSKM0001AFZZ

ADJUSTMENT Test discMD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (highreflection disc).

Type Test disc Parts No.

Note: Use the low reflection disc on which music has been recorded.

EEPROM version

Destination

Leaving the TEST mode(1) Press the STOP button in the TEST mode stop state.

Test Mode

Microcomputer version

Shipping setting methodHolding down simultaneously the VOLUME-DOWN Button and PLAY Button of the set unit without disc, supply the power from the DC IN plug.After the indication "INIT" -> "BYE OK" disappears, release the power supply of DC IN.

1. AUTO 1 Mode • Perform preliminary automatic adjustment.• If the combination of mechanism and pickup PWB has been changed, be sure to start from

AUTO1.2. AUTO 2 Mode • Perform ATT (attenuator) automatic adjustment.

• Perform continuous playback (error rate display, jump test)

3. TEST-PLAY Mode • Continuous playback from the specified address is performed.• 1 line, 10 lines or 384 lines manual jump is

performed.• C1 error rate display (pit section), ADIP error

rate display (groove section)• The temperature correction is performed only when

servo start is performed, but the posture correctionis not performed during continuous playback.

4. TEST-REC Mode • Continuous record from the specified addressis performed.

• Change of record laser output(servo gain is alsochanged according to laser output).

• The temperature correction is performed onlywhen servo start is performed, but the posturecorrection is not performed during continuousrecording.

5. MANUAL 1 Mode • Temperature is displayed. (Updating in real time)• Seeing the displayed adjustment value, perform preliminary manual adjustment. (Error rate indication, jump test)

6. MANUAL 2 Mode • Temperature is displayed. (Updating in real time)• Seeing the displayed adjustment value perform

manfully the preliminary adjustment. (Error rate indication, jump test)• Continuous playback is performed (error rate display, jump test).

7. RESULT 1 Mode • The value adjusted in AUTO1 or MANUAL1 is indicated.• (Execution in servo "OFF" state").

8. RESULT 2 Mode • The value adjusted in AUTO 2 or MANUAL 2 is indicated.• Adjustment value is changed manually. (error rate display, jump test).

9. DIGITAL INPUT Mode • Digital input information is displayed.10. ERROR INFORMATION • Error information is displayed. Mode • Error information is initialized11. NORMAL Mode • The mode is changed from the TEST mode to

the normal mode without adjustment.• In the normal mode the internal operation mode,

memory capacity, etc. areindicated.• In the normal mode both temperature correction

and posture correction are perfomed.12. EEPROM Mode • Factors of digital servo are changed manually.

(Each servo is turned on individually.)• Cut-off frequency of BASS1, BASS2 and BASS3

is selected manually.• Temperature detection terminal voltage is

measured, and the reference value is set.• Defaults are selected and set.• Setting of EEPROM protect area is updated.

(In case of protect releasing)13. INNER Mode • Determine the position where the INNER switch

is turned on. (only high reflection disc).• The temperature correction is performed only

when servo start is performed, but the posturecorrection is not performed.

Page 11: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 11 –

Operation in each TEST mode1. AUTO1 Mode• When the STOP button is pressed while the AUTO1 menu appears or during automatic adjustment, the mode changes to the TEST mode

stop state. At this time the adjustment value is not output.• Be sure to adjust, using the specified disc MMD-213A or MMD-212. At this time release the EEPROM (IC402) protection. (Refer to EEPROM write procedure.)• Adjustment NG; Adjustment item out of range, focus ON failure, and adjustment error• When the PLAY button is pressed while ADJ. OK is displayed, AUTO2 is executed.

2. AUTO2 Mode• When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment, the mode changes to the TEST mode

stop state. At this time the adjustment value is not output.• Adjustment NG; Adjustment item out of range, and adjustment error.• When the PLAY button is pressed while ADJ. OK is displayed,TEST_PLAY is executed.

3. TEST-PLAY Mode• When the STOP button is pressed while the TEST-PLAY menu appears, or in TEST-PLAY or continuous playback mode, the mode

changes to the TEST mode stop state.• When the PLAY button is pressed while the TEST-PLAY menu appears,continuous playback is initiated from the current pickup position.• Whenever the DISP button is pressed in the TEST-PLAY menu, the target address changes as follows.

0032 — 03C0 — 0700 — 08A0 — 0950— 0032 —When the PLAY button is pressed while a target address is displayed, continuous playback is performed after searching that address.

• Each time the MODE button is pressed while the TEST-PLAY mode target address is displayed, the digit which is changed by pressing theSKIP UP/DOWN button is changed as follows.

0032 — 0032 — 0032 — 0032 —• When the SKIP UP button is pressed in the TEST-PLAY mode target address is displayed, the digit of address specified by the MODE

button is set to +1h. (0 to F)• When the SKIP DOWN button is pressed in the TEST-PLAY mode target address is displayed, the digit of address specified by the MODE

button is set to -1h. (0 to F)* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• When the BASS button is pressed in the continuous playback mode, the number of jump lines changes as follows.1 — 10 — 384 — 1

* After the number of jump lines is indicated for one second, the address indication is restored. [ T R _ ]

• When the SKIP UP button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD direction.• When the SKIP DOWN button is pressed in the continuous playback mode, the specified number of lines is jumped in the REV direction.

* When the SKIP UP/DOWN button is held down, jump is repeated every approx. 100 ms.•Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows.

* Pre-mastered discContinuous playback (SUBQ address indication) [ S Q ]

|Continuous playback (C1 error indication) [ C E ]

|Continuous playback (SUBQ address indication) [ S Q ]

* Recordabl diskContinuous playback (ADIP address indication) [ A P ]

|Continuous playback (C1 error indication) [ C E ]

|Continuous playback (ADIP error indication) [ A E ]

|Continuous playback (ADIP address indication) [ A P ]

4. TEST-REC Mode• When the STOP button is pressed while the TEST-REC menu appears, or in the TEST-REC mode or continuous record mode, the mode

changes to the TEST mode stop state.• When the PLAY button is pressed while the TEST-REC menu appears, the continuous record is initiated from the current pickup position.• Whenever the DISP button is pressed in the TEST-REC menu, the target address changes as follows.

0032 — 03C0 — 0700 — 08A0 —0950 — 0032 —When the PLAY button is pressed while a target address is displayed, continuous playback is performed after searching that address. • Whenever the MODE button is pressed in the TEST-REC mode target address is displayed, the digit which is changed by the SKIP UP/

DOWN button changes as follows.0032 — 0032 — 0032 — 0320 —

• When the SKIP UP button s pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASS buttonis set to +1h.(0 to F)

• When the SKIP DOWN button is pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASSbutton is set to -1h. (0 to F)

* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

Page 12: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 12 –

5. NORMAL Mode• When the STOP button is pressed while the NORMAL menu appears, the mode changes to the TEST mode stop state.• Indication during operation

Indication of memory capacity on main unit LCD [ ] + Level meter: Internal mode: Address (Cluster section): Address (Sector section)

• Selection of sound volume, BASS, etc. is possible (without indication)• Recording is also possible.• If the STOP button is pressed during operation in the NORMAL mode, the NORMAL mode is canceled, and the power is turned off.

6. Error data display Mode• Reversing when SKIP DOWN button is pressed• When the STOP button is pressed while the error data indication menu appears or during error data indication, the mode changes to the

TEST mode stop state.• Error data 0 is the latest error.• Error which occurred in the TEST mode is also stored in the memory.• When the DISP button is pressed while the error data indication menu appears, the error data is initialized. [ C L E A R _ ]• : Error Code

Explanation of error history code12h : RF side FG, TG, and TCRS adjustment termination failure13h : Adjustment servo retraction excessive retrial16h : C. IN detection time-over17h : A, B, E, F, and TCRSO offset measurement value out of

tolerable range21h : Focus retraction completion allowable time-over23h : Track search completion allowable time-over24h : Disc linear speed measurement failure32h : P-TOC read failure42h : U-TOC read failure44h : U-TOC write data write disabled/read check error52h : SD write data write disabled71h : Pickup position initialization time-over72h : EEPROM data read check sum error73h : Record head drive disabled (by EJECT lever)82h : Power overvoltage detection91h : Ambient temperature is higher that the allowable tempera-

ture.

7. INNER Mode• when the STOP button is pressed on the INNER menu (SQ______ ), the state is changed to the TEST mode STOP state.• : Address

Page 13: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

– 13 –

EEPROM (IC402) writing procedure1. Procedure to replace EEPROM and write initial value of microcomputer in EEPROM

(1) Replace EEPROM.(2) Refer to the latest EEPROM data list.(3) Press the Display button, ENTER button and Play button to start the test mode.(4) Version display

[ V e r . ]

EEPROM version (b ~ Z)Microcomputer ROM version

(5) The whole LCD lights.(6) Test mode stop state.

[ T E S T ](7) Press the "BASS" button, and press twice the "SKIP DOWN" button.

[ E E P R O M ](8) Perform the operation to display "EEPROM SETTING MODE CHART", compare the EEPROM DATA LIST with the display,

and set according to the EEPROM DATA LIST with the VOL UP or VOL DOWN key. (9) Set the temperature reference. (Refer to the Temperature Reference Setting Method.) (10) Set according to the EEPROM DATA LIST. (11) Press the Stop button.

[ T E S T ] (12) Press the Stop button. (13) After data is written in EEPROM, turn off power . (14) Restore protection of EEPROM.

2. Temperature reference setting method[1] Measurement, calculation and setting procedure

(1) Set the TEST mode. • Set TEST 1, 0 = '01', and turn on power (or set PLAY ON in standby state).(2) Start the EEPROM mode 'Temp' menu. • Key operation in order of BASS, SKIP-DOWN x 2 times, PLAY, PLAY in the test mode STOP state. • 'TM$$%%' is displayed. ($$= Temperature code, %% = Temperature reference)(3) Once press SKIP-UP, and determine the displayed microcomputer TEMP input AD value. • 'TPin##' is displayed. (## = TEMP input AD value)(4) At the ambient temperature, determine the temperature corrected value from the temperature measurement value

correction table.(5) Determine the temperature reference, using the following formula. • Temperature reference = Microcomputer TEMP input AD value + Temperature corrected value(6) Set the temperature reference value by button operation , and check whether the temperature code indication corresponds to "Temperature

Code Identification Table".

[2] Temperature measurement value correction table

Ambienttemperature

Temperaturecorrection

+ 9oC ~ +11oC - 05h + 10.0oC

+12oC ~ +14oC - 04h + 12.7oC

+15oC ~ +16oC - 03h + 15.4oC

+17oC ~ +19oC - 02h + 18.2oC

+20oC ~ +22oC - 01h + 20.9oC

+23oC ~ +24oC ± 00h + 23.6oC

+25oC ~ +27oC + 01h + 26.3oC

+28oC ~ +30oC + 02h + 29.0oC

+31oC ~ +33oC + 03h + 31.8oC

Centertemperature

Ambienttemperature

Temperaturecorrection

Centertemperature

- 9oC ~ +10oC 08h + 0.5oC

+ 3oC ~ +21oC 07h + 12.5oC

+15oC ~ +33oC 06h + 23.6oC

+26oC ~ +43oC 05h + 35.0oC

X

Page 14: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 14 –

MD-SR50H/50W/60E/60W

Sled settingItem display Set values

EEPROM DATA LIST (EEPROM version b)TEMP setting

Item display Set valuesT M _ _ Calculate values

ADJ. SET settingItem display Set values

C O K _ A 0 H

F A T _ C 0 H

T A T _ 3 E H

C A T _ 2 0 H

F A B _ 6 4 H

BASS settingItem display Set values

B S 1 _ 3 F H

B S 2 _ 1 F H

B S 3 _ E 2 H

S L G _ D F H

S L 2 _ 2 0 H

S L M _ 7 F H

S L V _ A B H

S K k _ 7 2 H

S K t _ 4 C H

S K m _ 7 0 H

W T m _ 2 4 H

M V 1 _ 4 4 H

M V 2 _ 8 8 H

S R V _ 0 0 H

EQ. SET settingItem display Set values

H Q 1 _ 9 0 H

H Q 2 _ 9 0 H

H S G _ 1 1 H

H S O _ F D H

L Q 1 _ 9 0 H

L Q 2 _ 9 0 H

L S G _ 1 1 H

L S O _ 0 0 H

G Q 1 _ 9 8 H

G Q 2 _ 8 4 H

G S G _ 1 1 H

F L p _ 0 8 H

Control settingItem display Set values

C T 0 _ 0 1 H

C T 1 _ 1 1 H

C T 2 _ 4 0 H

C T 3 _ 3 0 H

R C 0 _ C 0 H

R C 1 _ F E H

S Y C _ A 6 H

P W L _ 0 1 H

D R 1 _ 0 0 H

D R 2 _ 0 0 H

I N 1 _ C 9 H

I N 2 _ 6 4 H

I N 3 _ 9 9 H

I N H _ 6 4 H

D R H _ 0 C H

P L E _ 1 B H

R C E _ 4 2 H

E L T _ 7 6 H

S L T _ 4 5 H

S P M _ 0 0 H

M S L _ 0 0 H

U S 0 _ 0 0 H

U S 1 _ 0 0 H

U S 2 _ 0 0 H

Item display Set values

F G _ _ B 0 H

F F 1 _ 7 0 H

F F 2 _ E 8 H

F Z H _ E D H

F L n _ 0 A H

D J G _ 1 4 H

F L V _ 2 0 H

W T f _ 2 0 H

F S S _ E 9 H

Fucus setting

Tracking settingItem display Set values

T G _ _ 4 8 H

T F 1 _ 7 0 H

T F 2 _ E 0 H

T F S _ 0 0 H

T B o _ 4 4 H

T B t _ 2 0 H

T K o _ 4 4 H

T K t _ 1 D H

T D o _ 6 7 H

T D t _ 3 4 H

T G R _ 0 0 H

S C t _ 4 0 H

S C m _ 5 3 H

C L p _ 1 8 H

C L r _ 2 8 H

J P I _ 0 1 H

K 1 0 _ 6 5 H

Item display Set values

S P G _ 1 4 H

S P i _ E 0 H

S P m _ A 0 H

S P o _ 6 8 H

S P 1 _ 1 0 H

S P 2 _ 6 0 H

S P 3 _ F 2 H

S P 4 _ F 2 H

S P 5 _ 1 0 H

S P D _ 6 0 H

S P K _ E B H

Spindle setting

Page 15: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 15 –

MD-SR50H/50W/60E/60W

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oove

sec

tion

adju

stm

ent

1 1

: RF

sid

e T

CR

S g

ain

adju

stm

ent

1 2

: Tra

ckin

g A

TT

initi

al s

ettin

g1

3 : R

F s

ide

focu

s ga

in m

inor

adj

ustm

ent

1 4

: Foc

us A

TT

initi

al s

ettin

g1

5 : S

gai

n "H

igh"

AB

EF

offs

et m

easu

rem

ent

1 6

: TC

RS

offs

et m

easu

rem

ent

1 7

: S g

ain

"Low

" A

BE

F o

ffset

mea

sure

men

t

Page 16: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 16 –

MD-SR50H/50W/60E/60W

: AT

T A

utoa

djus

tmen

t men

u

: AT

T a

djus

tmen

t err

or (

adju

stm

ent v

alue

out

put)

: Dur

ing

AT

T a

utoa

djus

tmen

t

Adj

ustm

ent e

rror

Nor

mal

end

: AT

T a

djus

tmen

t nor

mal

end

(ad

just

men

t val

ue o

utpu

t)

: Con

tinuo

us p

layb

ack

(hig

h re

flect

ion)

: Con

tinuo

us p

layb

ack

(low

ref

lect

ion)

PLA

Y

PLA

Y

A U

T O

2

AT

T A

uto

Adj

ustm

ent

A D

J .

O K

A D

J .

N G

S Q

# #

# #

A P

# #

# #

A T

2

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

"

" r

epre

sent

the

adju

stm

ent n

umbe

r as

follo

ws.

0 0

: Inn

erm

ost p

erip

hery

mov

e0

3 : P

it se

ctio

n tr

acki

ng A

TT

set

ting

0 4

: Pit

sect

ion

focu

s A

TT

set

ting

0 6

: Ext

erna

l per

iphe

ry m

ove

(low

ref

lect

ion

only

)0

7 : T

CR

S A

TT

set

ting

(low

ref

lect

ion

only

)0

8 : G

roov

e se

ctio

n tr

acki

ng A

TT

set

ting

(low

ref

lect

ion

only

)0

9 : G

roov

e se

ctio

n fo

cus

AT

T s

ettin

g(lo

w r

efle

ctio

n on

ly)

: Con

tinuo

us p

layb

ack

men

u

: Con

tinuo

us p

layb

ack

(pit

sect

ion)

: Con

tinuo

us p

layb

ack

(gro

ove

sect

ion)

# #

# #

: Add

ress

: Con

tinuo

us p

layb

ack

(pit

sect

ion)

: Con

tinuo

us p

layb

ack

(gro

ove

sect

ion)

# #

# #

: Add

ress

PLA

Y

T

P

L A

Y

Con

tinuo

us P

layb

ack

S Q

# #

# #

A P

# #

# #

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

In th

e st

art a

ddre

ss s

et s

tate

the

star

t add

ress

cha

nges

as

follo

ws

whe

n th

e [D

ISP

] but

ton

is p

ress

ed.

0 0

3 2

H (

initi

al v

alue

)0

3 C

0 H

0 7

0 0

H0

8 A

0 H

A d

0 0

3 2

A d

0 3

C 0

DISP

DISP

A d

0 7

0 0

DISP

DISP

A d

0 8

A 0

* In

the

star

t add

ress

set

ting

stat

e th

e st

art a

ddre

ss c

hang

e di

git c

hang

es w

hen

the

[BA

SS

] but

ton

is p

ress

ed.

1st

dig

it (in

itial

val

ue)

2nd

digi

t3r

d di

git

A d

0 0

3 2

A d

0 0

3 2

MO

DE

MO

DE

A d

0 0

3 2

MO

DE

* In

the

cont

inuo

us p

layb

ack

stat

e th

e nu

mbe

r of

jum

p lin

es c

hang

es a

s fo

llow

s sh

own

the

[BA

SS

] but

ton

is p

ress

ed.

1 (in

itial

val

ue)

1038

4

1 T

R

1 0

T R

BASS

BASS

3 8

4 T

RBA

SS

• C

ontin

uous

pla

ybac

k fr

om c

urre

nt p

icku

p po

sitio

n

: Con

tinuo

us p

layb

ack

men

u

: Sta

rt a

ddre

ss s

ettin

g

DIS

P

T

P

L A

Y

A d

0 0

3 2

PLA

Y

S Q

# #

# #

A P

# #

# #

• C

ontin

uous

pla

ybac

k fr

om a

ny a

ddre

ss

* In

the

star

t add

ress

set

sta

te th

e va

lue

of s

elec

tion

digi

t cha

nges

in th

e ra

nge

of "

0h to

Fh"

w

hen

the

[SK

IP U

P/D

OW

N] b

utto

n is

pre

ssed

* W

hen

the

[SK

IP U

P] b

utto

n is

pre

ssed

in th

e co

ntin

ued

play

back

mod

e, ju

mp

of s

peci

fied

num

ber

of li

nes

occu

rs in

the

exte

rnal

per

iphe

ry d

irect

ion.

If t

he k

ey is

hel

d do

wn

jum

p oc

curs

con

tinuo

usly

(10

0 m

s cy

cle)

.*

Whe

n th

e [S

KIP

DO

WN

] but

ton

is p

ress

ed in

the

cont

inuo

us p

layb

ack

mod

e, ju

mp

of s

peci

fied

num

ber

of li

nes

occu

rs in

the

inte

rnal

per

iphe

ry d

irect

ion.

If t

he k

ey is

hel

d do

wn,

jum

p oc

curs

con

tinuo

usly

(10

0 m

s cy

cle)

. A d

0 9

5 0

H

0 9

5 0

H

Page 17: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 17 –

MD-SR50H/50W/60E/60W

: Con

tinuo

us r

ecor

d m

enu

PLA

Y

T

R E

C

Con

tinuo

us R

reco

rd

A P

# #

# #

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

In th

e st

art a

ddre

ss s

et s

tate

the

star

t add

ress

cha

nges

as

follo

ws

whe

n th

e [D

ISP

] but

ton

is p

ress

ed.

• C

ontin

uous

rec

ord

from

the

curr

ent p

icku

p po

sitio

n

: Con

tinuo

us r

ecor

d m

enu

: Sta

rt a

ddre

ss s

ettin

g

: Con

tinuo

us r

ecor

d #

# #

#: A

ddre

ss

: Con

tinuo

us r

ecor

d #

# #

#: A

ddre

ss

PLA

Y

T

R E

C

A d

0 0

3 2

PLA

Y

A P

# #

# #

• C

ontin

uous

rec

ord

play

back

from

any

add

ress

A d

0 0

3 2

0

0 3

2 H

(in

itial

val

ue)

0 3

C 0

H0

7 0

0 H

0 8

A 0

H

A d

0 3

c 0

DISP

A d

0 7

0 0

DISP

DISP

DISPA

d 0

8 A

0

* In

the

star

t add

ress

set

ting

stat

e th

e st

art a

ddre

ss c

hang

e di

git c

hang

es w

hen

the

[BA

SS

] but

ton

is p

ress

ed.

A d

0 0

3 2

1st d

igit

(initi

al v

alue

)2n

d di

git

3rd

digi

t

A d

0 0

3 2

MOD

EA

d 0

0 3

2M

ODE

MOD

E

A d

0 9

5 0

: IN

NE

R s

witc

h po

sitio

n m

easu

rem

ent m

enu

: Con

tinuo

us p

layb

ack

(pit

sect

ion)

# #

# #

: Add

ress

PLA

Y

I N

N E

R

Inne

r S

witc

h P

ositi

on M

easu

rem

ent

S Q

# #

# #

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.

: TE

ST

mod

e no

rmal

pla

ybac

k m

enu

: Con

tinuo

us p

layb

ack

@@

@@

@@

: Mod

e an

d ad

dres

s di

spla

y

PLA

Y

N O

R M

A L

Tes

t Mod

e N

orm

al P

layb

ack

@@

@@

@@

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e N

OR

MA

L m

ode

is c

ance

led,

the

pow

er is

turn

ed o

ff.

: Err

or h

isto

ry d

ispl

ay m

enu

: Err

or h

isto

ry 0

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 1

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 2

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 3

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 4

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 5

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 6

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 7

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 8

dis

play

§ §

: Err

or c

ode

: Err

or h

isto

ry 9

dis

play

§ §

: Err

or c

ode

PLA

Y

E

D A

T A

Err

or H

isto

ry D

ispl

ay

E 0

§ §

E 1

§ §

: Err

or h

isto

ry d

ispl

ay m

enu

: Err

or h

isto

ry c

lear

DIS

PLA

Y

E

D A

T A

C L

E A

R

SKIP

UP

SKIP

DOW

N

E 2

§ §

SKIP

UP

SKIP

DOW

N

E 3

§ §

SKIP

UP

SKIP

DOW

N

E 4

§ §

SKIP

UP

SKIP

DOW

N

E 5

§ §

SKIP

UP

SKIP

DOW

N

E 6

§ §

SKIP

UP

SKIP

DOW

N

E 7

§ §

SKIP

UP

SKIP

DOW

N

E 8

§ §

SKIP

UP

SKIP

DOW

N

E 9

§ §

SKIP

UP

SKIP

DOW

N

• E

rror

his

tory

cle

ar

• E

rror

his

tory

dis

play

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.

Page 18: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 18 –

MD-SR50H/50W/60E/60W

: EE

PR

OM

set

ting

men

u

: Foc

us s

ettin

g m

enu

: Spi

n se

tting

men

u

: Tra

ckin

g se

tting

men

u

: Sle

d se

tting

men

u

: BA

SS

set

ting

men

u

: TE

MP

set

ting

men

u

: Adj

ustm

ent s

ettin

g m

enu

: Dig

ital E

Q s

ettin

g m

enu

: Con

trol

set

ting

men

u

PLA

Y

E E

P R

O M

EE

PR

OM

Set

ting

F o

c u

s

S p

i n

SKIP

UP

SKIP

DOW

N

T r

a c

kSK

IP U

PSK

IP D

OWN

S l

e d

SKIP

UP

SKIP

DOW

N

B a

s s

SKIP

UP

SKIP

DOW

N

T E

M P

SKIP

UP

SKIP

DOW

N

A D

J S

E T

SKIP

UP

SKIP

DOW

N

D E

Q S

E T

SKIP

UP

SKIP

DOW

N

C T

R L

SKIP

UP

SKIP

DOW

NSK

IP U

P

SKIP

DOW

N

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [P

LAY

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e sp

ecifi

c se

tting

men

u is

set

.

: BA

SS

set

ting

men

u

PLA

Y

B a

s s

BA

SS

Set

ting

B S

1

B S

2SK

IP U

PSK

IP D

OWN

B S

3SK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to

"T

EM

P S

ET

TIN

G m

enu"

.*

In th

e sp

ecifi

c st

ate

the

setti

ng c

hang

es in

the

rang

e of

"00

h to

FF

h" w

hen

the

[V

OL

UP

/DO

WN

] but

ton

is p

ress

ed.

(T

he u

pper

lim

it va

ries

depe

ndin

g on

the

item

s)*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

: Foc

us s

ettin

g m

enu

PLA

Y

F o

c u

s

Foc

us S

ettin

g

F G

F F

1SK

IP U

PSK

IP D

OWN

F F

2SK

IP U

PSK

IP D

OWN

F Z

HSK

IP U

PSK

IP D

OWN

F L

nSK

IP U

PSK

IP D

OWN

D J

GSK

IP U

PSK

IP D

OWN

SKIP

UP

SKIP

DOW

N

F L

V

W T

fSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

spe

cific

sta

te th

e se

tting

cha

nged

in th

e ra

nge

of "

00h

to F

Fh"

whe

n th

e [V

OL

UP

/DO

WN

] but

ton

is p

ress

ed.

(T

he u

pper

lim

it va

ries

depe

ndin

g on

the

item

s)*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

F S

SSK

IP U

PSK

IP D

OWN

Page 19: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 19 –

MD-SR50H/50W/60E/60W

: Spi

n se

tting

men

u

PLA

Y

S p

i n

Spi

n S

ettin

g

S P

G

S P

iSK

IP U

PSK

IP D

OWN

S P

mSK

IP U

PSK

IP D

OWN

S P

oSK

IP U

PSK

IP D

OWN

S P

1SK

IP U

PSK

IP D

OWN

S P

2SK

IP U

PSK

IP D

OWN

S P

3SK

IP U

PSK

IP D

OWN

S P

4SK

IP U

PSK

IP D

OWN

S P

5SK

IP U

PSK

IP D

OWN

S P

DSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

spe

cific

sta

te th

e se

tting

cha

nged

in th

e ra

nge

of "

00h

to F

Fh"

whe

n th

e [

VO

L U

P/D

OW

N] b

utto

n is

pre

ssed

. (

The

upp

er li

mit

varie

s de

pend

ing

on th

e ite

ms)

S P

KSK

IP U

PSK

IP D

OWN

* W

hen

the

[MO

DE

] but

ton

is p

ress

ed in

eac

h st

ate,

the

set d

igit

is c

hang

ed.

: Tra

ckin

g se

tting

men

u

PLA

Y

T r

a c

k

Tra

ckin

g S

ettin

g

T G

T F

1SK

IP U

PSK

IP D

OWN

T F

2SK

IP U

PSK

IP D

OWN

T F

SSK

IP U

PSK

IP D

OWN

T B

oSK

IP U

PSK

IP D

OWN

T B

tSK

IP U

PSK

IP D

OWN

T K

oSK

IP U

PSK

IP D

OWN

T K

tSK

IP U

PSK

IP D

OWN

T D

oSK

IP U

PSK

IP D

OWN

T D

tSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

00h

to F

Fh"

whe

n th

e [V

OL

UP

/DO

WN

] b

utto

n is

pre

ssed

. (T

he u

pper

lim

it va

ries

depe

ndin

g on

the

item

s)

T G

RSK

IP U

PSK

IP D

OWN

S C

tSK

IP U

PSK

IP D

OWN

S C

mSK

IP U

PSK

IP D

OWN

C L

pSK

IP U

PSK

IP D

OWN

C L

rSK

IP U

PSK

IP D

OWN

J P

ISK

IP U

PSK

IP D

OWN

K 1

0SK

IP U

PSK

IP D

OWN

* W

hen

the

[MO

DE

] but

ton

is p

ress

ed in

eac

h st

ate,

the

set d

igit

is c

hang

ed.

Page 20: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 20 –

MD-SR50H/50W/60E/60W

: Slid

e se

tting

men

u

PLA

Y

S l

e d

Sle

d S

ettin

g

S L

G

S L

2SK

IP U

PSK

IP D

OWN

S L

MSK

IP U

PSK

IP D

OWN

S L

VSK

IP U

PSK

IP D

OWN

S K

kSK

IP U

PSK

IP D

OWN

S K

tSK

IP U

PSK

IP D

OWN

S K

mSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

00h

to F

Fh"

whe

n th

e [

VO

L U

P/D

OW

N] b

utto

n is

pre

ssed

. (

The

upp

er li

mit

varie

s de

pend

ing

on th

e ite

ms)

* W

hen

the

[MO

DE

] but

ton

is p

ress

ed in

eac

h st

ate,

the

set d

igit

is c

hang

ed.

W T

mSK

IP U

PSK

IP D

OWN

M V

1SK

IP U

PSK

IP D

OWN

M V

2SK

IP U

PSK

IP D

OWN

S R

VSK

IP U

PSK

IP D

OWN

: Tem

p se

tting

men

u

: TE

MP

ref

eren

ce : Ref

eren

ce

§ §

: T

empe

ratu

re c

ode

: TE

MP

A/D

inpu

t val

ue: M

easu

rem

ent v

alue

PLA

Y

T e

m p

TE

MP

Set

ting

T M

§ §

T p

i n

SKIP

UP

SKIP

DOW

N

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

00h

to F

Fh"

whe

n th

e [

VO

L U

P/D

OW

N] b

utto

n is

pre

ssed

.*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

: Adj

ustm

ent s

ettin

g m

enu

PLA

Y

A D

J S

E T

Adj

ustm

ent S

ettin

g

C O

K

F A

TSK

IP U

PSK

IP D

OWN

T A

TSK

IP U

PSK

IP D

OWN

C A

TSK

IP U

PSK

IP D

OWN

F A

BSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

the

spec

ific

setti

ng d

ispl

ay s

tate

the

setti

ng c

hang

e di

git c

hang

es w

hen

the

[P-M

OD

E]

but

ton

is p

ress

ed.

1st d

igit

(initi

al v

alue

)2n

d di

git

P-M

ODE

P-M

ODE

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

0h to

Fh"

whe

n th

e [V

OL

UP

/DO

WN

] b

utto

n is

pre

ssed

.*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

Page 21: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 21 –

MD-SR50H/50W/60E/60W

: Dig

ital E

Q s

ettin

g m

enu

PLA

Y

D E

Q S

E T

Dig

ital E

Q S

ettin

g

H Q

1

H Q

2SK

IP U

PSK

IP D

OWN

H S

GSK

IP U

PSK

IP D

OWN

H S

OSK

IP U

PSK

IP D

OWN

L Q

1SK

IP U

PSK

IP D

OWN

L Q

2SK

IP U

PSK

IP D

OWN

L S

GSK

IP U

PSK

IP D

OWN

L S

OSK

IP U

PSK

IP D

OWN

G Q

1SK

IP U

PSK

IP D

OWN

F L

pSK

IP U

PSK

IP D

OWN

G Q

2SK

IP U

PSK

IP D

OWN

G S

GSK

IP U

PSK

IP D

OWN

* W

hen

the

[ST

OP

] but

ton

is p

ress

ed in

spe

cific

men

u, th

e "T

ES

T M

OD

E S

TO

P"

stat

e is

set

.*

Whe

n th

e [D

ISP

] but

ton

oper

atio

n is

per

form

ed in

the

spec

ific

stat

e, th

e m

enu

chan

ges

to "

TE

MP

SE

TT

ING

men

u".

* In

the

spec

ific

setti

ng d

ispl

ay s

tate

the

setti

ng c

hang

e di

git c

hang

es

w

hen

the

[P-M

OD

E] b

utto

n is

pre

ssed

. 1

st d

igit

(initi

al v

alue

)

2nd

dig

itP-

MO

DE

P-M

ODE

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

0h to

Fh"

whe

n th

e [V

OL

UP

/DO

WN

] b

utto

n is

pre

ssed

.*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

: Con

trol

set

ting

men

u

PLA

Y

C T

R L

Con

trol

Set

ting

C T

0

C T

1SK

IP U

PSK

IP D

OWN

C T

2SK

IP U

PSK

IP D

OWN

C T

3SK

IP U

PSK

IP D

OWN

R C

0SK

IP U

PSK

IP D

OWN

R C

1SK

IP U

PSK

IP D

OWN

S Y

CSK

IP U

PSK

IP D

OWN

P W

LSK

IP U

PSK

IP D

OWN

D R

1SK

IP U

PSK

IP D

OWN

D R

2SK

IP U

PSK

IP D

OWN

I N

1SK

IP U

PSK

IP D

OWN

I N

2SK

IP U

PSK

IP D

OWN

I N

3SK

IP U

PSK

IP D

OWN

I N

HSK

IP U

PSK

IP D

OWN

Con

tinue

d to

th

e ne

xt p

age

SKIP

UP

SKIP

DOW

N

Page 22: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 22 –

MD-SR50H/50W/60E/60WC

ontin

ued

from

th

e pr

eced

ing

page

D R

HSK

IP U

PSK

IP D

OWN

P L

ESK

IP U

PSK

IP D

OWN

SKIP

UP

SKIP

DOW

N

SKIP

UP

SKIP

DOW

N

R C

E

E L

T

S L

TSK

IP U

PSK

IP D

OWN

S P

MSK

IP U

PSK

IP D

OWN

SKIP

UP

SKIP

DOW

N

SKIP

UP

SKIP

DOW

N

M S

L

U S

0SK

IP U

PSK

IP D

OWN

SKIP

UP

SKIP

DOW

N

U S

1

U S

2*

Whe

n th

e [S

TO

P] b

utto

n is

pre

ssed

in s

peci

fic m

enu,

the

"TE

ST

MO

DE

ST

OP

" st

ate

is s

et.

* W

hen

the

[DIS

P] b

utto

n op

erat

ion

is p

erfo

rmed

in th

e sp

ecifi

c st

ate,

the

men

u ch

ange

s to

"T

EM

P S

ET

TIN

G m

enu"

.*

In th

e sp

ecifi

c se

tting

dis

play

sta

te th

e se

tting

cha

nge

digi

t cha

nges

whe

n th

e [P

-MO

DE

] b

utto

n is

pre

ssed

.1s

t dig

it (in

itial

val

ue)

2nd

digi

tP-

MO

DE

P-M

ODE

* In

the

spec

ific

stat

e th

e se

tting

cha

nges

in th

e ra

nge

of "

0h to

Fh"

whe

n th

e [

VO

L U

P/D

OW

N] b

utto

n is

pre

ssed

.*

Whe

n th

e [M

OD

E] b

utto

n is

pre

ssed

in e

ach

stat

e, th

e se

t dig

it is

cha

nged

.

Page 23: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 23 –

MD-SR50H/50W/60E/60W

SW401 EJECT OFF—ON

SW402 HOLD OFF—ON

SW403 LID DETECTION OFF—ON

SW902 DISC PROTECT OFF—ON

NOTES ON SCHEMATIC DIAGRAM

• Resistor:To differentiate the units of resistors, such symbol as K andM are used: the symbol K means 1000 ohm and the symbolM means 1000 kohm and the resistor without any symbol isohm-type resistor. Besides, the one with “Fusible” is a fusetype.

• Capacitor:To indicate the unit of capacitor, a symbol P is used: thissymbol P means micro-micro-farad and the unit of thecapacitor without such a symbol is microfarad. As to electro-lytic capacitor, the expression “capacitance/withstand volt-age” is used.(CH), (TH), (RH), (UJ): Temperature compensation(ML): Mylar type

• The indicated voltage in each section is the one measuredby Digital Multimeter between such a section and the chas-sis with no signal given.

• Parts marked with “ ” ( ) are important formaintaining the safety of the set. Be sure to replace theseparts with specified ones for maintaining the safety andperformance of the set.

POSITIONREF. NO DESCRIPTION

Figure 23 TYPES OF TRANSISTOR AND DIODE

HRB0103 B

2SA1832 GR2SA17457RN1444 AUN5213UN52102SD1979 S2SD1819 AS

TOPVIEW

TOP VIEW

F10J2EF05J2L

TOP VIEWB

(G)(3)E

(S)1

C(D)(2)

HSB2838

TOP VIEW

SBE8032SA1873 GR

TOP VIEW

RB731U

TOP VIEW

Page 24: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 24 –

MD-SR50H/50W/60E/60W

VOLTAGE

PIN NO. VOLTAGE PIN

NO. VOLTAGE

IC401PIN NO. VOLTAGE

PIN NO. VOLTAGE PIN

NO. VOLTAGE

PIN NO. VOLTAGE

1

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

PIN NO. VOLTAGE

Preform the measurement on the IC401 pin 37 in the TEST mode with GND short-circuited.(LCD is in "TEST" state.)

PIN NO. VOLTAGE

IC501

IC701 IC822

IC841

IC402

IC871

IC354

IC353 IC601

IC651

IC703

IC771

IC801

IC802

IC901

100

1 2

456789

1011121314151617181920212223242526272829303132333435363738394041424344454647484950

51525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899

3

1 2

456789

101112131415

3

1 2

456789

101112131415161718192021222324

3

2

45

3

1 2

45678

3

1 2

45678

3

1 2

45

3

1 2

45

3

910

1 2

45

3

1 2

45678

3

1 23

1 2

45678

3

1 2

456789

1011121314151617181920

3

1 2

456789

101112131415161718192021222324252627282930313233343536

3

1 2

456789

101112131415161718192021222324

3

1 2

456

3

PIN NO. VOLTAGE

IC431

1 2

43

PIN NO. VOLTAGE

IC803

1 2

43

PIN NO. VOLTAGE

IC809

1 2

456

3

PIN NO. VOLTAGE

IC892

1 2

456

3

2.73V0V0V0V0V0V0V0V

0V0V0V0V0V

2.35V0V0V0V

2.34V0V

2.35V2.35V

PIN NO. VOLTAGE

IC404

1 2

45

3

0.2V0.2V

0V2.19V2.5V

2.34V2.35V

0V0V

0V—

0.29V2.32V

— 0.17V

0V0.22V

0V2.32V2.15V2.03V2.25V2.35V2.35V

0V2.35V

0V2.32V0.21V2.32V2.25V0.2V

1.55V0V0V

1.57V1.05V1.75V0.56V

0V0V

2.35V0V0V0V

2.34V2.34V

0V2.35V2.13V2.7V2.7V

0V0V

2.35V2.35V2.35V

0V2.47V

0V0V

2.35V0V

2.32V0V

2.35V2.35V2.32V2.35V2.35V2.28V2.35V2.35V2.35V1.09V1.12V

0V0V

2.34V2.35V2.35V

2V2.32V2.32V0.15V2.35V2.35V

0V0V

2.34V2.34V2.12V1.47V

0V0V0V0V0V0V0V0V0V0V

2.32V0V0V

2.35V2.33V

0V

0V— — 0V

2.49V0V

0.78V0V0V1V1V1V— — — — 16

PIN NO. VOLTAGE

IC621

1 2

456

3

8.58V0V0V0V

2.34V8.55V

2.73V— 0V0V0V0V— — — —

373839404142434445464748

2.34V0V — — —

8.55V2.48V

0V2.38V

0V2.38V2.34V

0V0V0V0V

4.67V0V0V0V

4.67V0V0V0V0V

— 4.67V2.34V

0V2.48V

— — — —

2.48V0V0V0V0V

4.67V0V0V0V

4.67V — 0V— —

0V0V0V0V0V0V0V0V0V0V0V0V0V0V0V0V

-2.32V0V0V

2.42V0.86V

0V0V0V

0V0V0V0V0V

2.5V-2.34V

0V2.5V

0V1.26V

0V2.35V

0V0V

2.5V0V

-2.34V-2.34V

0V0V0V0V0V

0V2.74V2.74V

— 2.5V

0V2V

4.44V

0.45V1.03V3.28V0.45V0.99V4.38V

4.4V4.46V

0V0V

5.36V0V0V0V

2.35V5.36V

1.17V2.8V

0.37V0V

1.17V1.17V1.16V1.26V

— 2.8V

2.06V2.06V

0V

PIN NO. VOLTAGE

1

IC842

2

45

3

— 2.81V2.56V

0V2.36V

PIN NO. VOLTAGE

IC852

1 2

45678

3

1.17V2.8V

0.67V0V

1.2V1.17V1.16V1.26V

1V2.36V

0V1.18V2.36V

PIN NO. VOLTAGE

IC873

1 2

45

3

0V8.59V2.36V

— 4.47V

0V0.6V

1.58V0V0V0V

0V0V

2.34V0V

2.49V0V

2.49V0V— — — — 0V

0.75V— — — 0V0V0V0V0V0V0V

21222324

PIN NO. VOLTAGE PIN

NO. VOLTAGE

IC201

100

1 2

456789

1011121314151617181920212223242526272829303132333435363738394041424344454647484950

51525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899

3

0.84V2.48V1.22V

0V1.24V1.24V1.24V1.24V1.24V

2V1.17V

2V0V0V0V0V1V0V0V0V0V0V0V0V0V

0.5V0.5V0.5V1.4V

1.13V2.55V0.5V0.8V0.8V0.8V0.8V

1.84V0V

1.97V1.38V1.53V0.9V1.9V

2.56V1.66V1.56V

0V1.9V

1V0.9V

PIN NO. VOLTAGE

IC101

1 2

456789

101112131415161718192021222324252627282930313233343536

3

373839404142434445464748

0.71V0.71V0.71V0.71V1.24V1.24V

0V1.24V1.24V1.24V1.24V1.24V2.28V2.28V

0V0V

2.48V0V0V

1.47V2.35V

0V0V

2.48V1.24V1.24V1.24V1.24V1.24V1.2V

1.24V1.24V1.24V

0V1.24V1.24V0.16V1.24V1.24V1.24V1.24V2.48V

0V —

1.24V1.24V1.24V0.19V

1V0V0V0V0V2V0V0V0V0V

— 2V0V

0.88V0.76V2.46V

1V2V0V1V1V0V0V0V

—2V2V2V0V2V1V2V2V2V1V2V2V0V

2.34V0V

0.3V0V0V

1.6V1.2V1.7V0.3V

2.25V2.34V0.2V

PIN NO. VOLTAGE

IC202

1 2

456789

1011121314151617181920

3

1.55V2.05V2.57V1.94V0.93V1.43V0.49V0.6V0.6V

2.55V0.6V

0.99V0.99V0.99V0.8V

1.87V2.12V1.66V1.73V

0V

PIN NO. VOLTAGE

IC203

1 23

0V2V

2.73V

PIN NO. VOLTAGE

IC251

1 2

45678

3

2.07V0V0V0V

5.35V2.08V2.08V2.08V

PIN NO. VOLTAGE

IC253

1 2

456

3

5.36V5.31V5.31V

0V0V0V

PIN NO. VOLTAGE

IC255

1 2

45678

3

-1.05V0V0V

-2.25V0V0V

-1.65V2.72V

PIN NO. VOLTAGE

IC256

1 2

456

3

0V — —

0V0V0V

PIN NO. VOLTAGE

IC257

1 2

43

0V0V

— 0V

PIN NO. VOLTAGE

IC258

1 2

456

3

0V0.59V4.93V

0V0V0V

PIN NO. VOLTAGE

IC260

1 2

456

3

2.72V2.7V2.7V

0V0V—

PIN NO. VOLTAGE

IC259

1 2

456

3

— 0.56V0.56V

0V0.56V2.63V PIN

NO. VOLTAGE

IC351

1 2

456789

1011121314

3

0V0V

4.44V0V0V

4.44V0V

0.91V4.44V

0V0.91V4.44V

0V4.49V

PIN NO. VOLTAGE

IC821

S GD

PIN NO. VOLTAGE

IC851

S GD

0V— —

0V— —

Page 25: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 25 –

MD-SR50H/50W/60E/60W

Figure 25 BLOCK DIAGRAM

IC65

1M

OT

ER

DR

IVE

RLB

1930

M V

CC

VC

C

V

EE

IC84

1 S

8324

A28

2.8V

UP

CO

NV

ER

TE

RIC25

1 F

TD

2017

IC25

3 R

N49

04IC

255

NJM

022V

IC25

6 R

N49

11IC

257

S80

808L

NIC

258

259

HN

1C01

FU

IC26

0 R

N49

04IC

809

RN

4904

IC89

2 H

N1C

01F

UT

RA

NS

IST

OR

,N

-ch

MO

S F

ET

,D

IGIT

AL

TRA

NS

ISTE

R,

OP

AM

P,

RE

SE

T

M90

3LI

FT

MO

TO

R

IC84

2X

C62

HS

022.

35V

RE

GU

LAT

OR

IC82

2IR

3M14

ND

C/D

CC

ON

VE

RT

ER

IC50

1A

D/D

A C

ON

VE

RTE

RA

K45

50V

T

M90

2S

LED

MO

TO

R

IC10

1R

F S

IGN

AL

PR

OC

ES

SO

RIR

3R55

2.5V

RE

GU

LAT

OR

IC77

1 6

2GR

2522

IC40

1S

YS

TE

MM

ICR

OC

OM

PU

TE

RIX

0341

AW

RIP

PLE

FIL

TE

R

VC

C

VE

E

IC87

362

GR

4522

4.5V

RE

GU

LAT

OR

OP

IC

LAS

ER

PIC

K

HE

AD

M90

1S

PIN

DLE

MO

TO

R

IC20

1E

ND

EC

/SE

RV

O/

AT

RA

CLR

3781

1

+2.

7V

+2.

5V

T

F

+2.

5V

+2.

7V

+2.

7V

VD

D+

2.0V

AV

CC

+2.

5V

+7V

+2.

5V

J703HEADPHONES

LINE

J703REMOTE

CONTROL

IC80

1 62

RP

2002

IC80

2 H

N1C

01F

UIC

803

S80

819L

NT

RA

NS

IST

OR

,R

ES

ET

IC

J801DC IN

(4~5.5V)

1.0-1.7V

+2.

35V

LCD

AS

S'Y

KE

Y F

LEX

IBLE

PW

B A

SS

'Y

IC90

1S

PIN

DLE

MO

TO

R D

RIV

ER

LB19

71V

IC70

3A

UD

IO A

MP

.IR

3R59

N

IC70

1A

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IO A

MP

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3R54

N

IC60

14-

CH

PW

M D

RIV

ER

LV80

17W V

M

IC40

2E

EP

RO

M

58X

2402

T

VS

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2IX

2567

AF

4M

D-R

AM

+2.

5V

OP

TIC

AL

INU

NIT

J701OPTICAL IN

J701LINE IN

J702MIC IN

(READY FOR PLUG/INPOWER)

2.0V

RE

GU

LAT

OR

IC20

362

FP

2002

1,2,

21,2

36

5,7

7,30

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VC

CV

G

43

16,1

8,20

,22

39,4

117

,21,

27,

40,4

4

13,1

423

40

26-2

9,32

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39-4

6

1-9,

11-1

9

7,9

66

749

2,3

15,1

6

4,21

2017

9,16

6,19

10,1

2

624

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CH

22

R-C

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17

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1

1-2

2,13

,14,

24,

25,3

6,37

6-9

1-12

1,5,

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-17

55,

59,

81,

82

9, 11,

13,

48

75,8

3

74

2

18-2

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5

52

5

8

3

10

+2.

7V

82-8

4,86

,89

-100

12,6

2,68

,87 3

4

2

2

5,6

NC

SW

402

HO

LD

SW

902

DIS

CP

RO

TE

CT

95 4

SW

401

EJE

CT

SW

403

LID

DE

TEC

TIO

N

19 40,6

5,77

,78,

98

738

PLA

YB

AC

K S

IGN

AL

RE

CO

RD

SIG

NA

L+

B

M MM

6

Ni - MH Batteryor

Dry Battery(1 pieces)

+2.

7V+

2.7V

1, 2

0-30

, 73,

33-

35

R-C

H

L-C

H2

R-C

H3

L-C

H

3

VC

C

L-C

H

5

8R

-CH

NO

R G

ATE

IC35

1 7

4AC

T02T

N-c

h M

OS

FET

IC35

4 C

PH56

08IC

353

FTD

2005

VCC

IC85

2IR

3M14

ND

C/D

CC

ON

VE

RT

ER

F84

10.

4A,D

C 6

0V

2

2

2

VC

C

2,3

+2V

+1-2V

1

+2.

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IC43

1R

ES

ET

S80

820L

N

1

62

IC62

1 R

N49

04D

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AL

TR

AN

SIS

TO

R

16

5

+2.

5V

-2.5

V

+4.

0V

Page 26: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 26 –

MD-SR50H/50W/60E/60W

• The numbers 1 to 18 are waveform numbers shown in page 31.

A

B

C

D

E

F

G

H

1 2 3 4 5 6Figure 26 SCHEMATIC DIAGRAM (1/2)

• NOTES ON SCHEMATIC DIAGRAM can be found on page 23.

22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

TP

610

CK901

TP601

48 47 46 45 44 43 42 41 40 39 38 37

36

35

34

33

32

31

30

29

28

27

26

25

24 23 22 21 20 19 18 17 16 15 14 13

12 11 10 9 8

7 6

5 4 3 2 1

TP602

6 5

4 3 2 1

TP407

4

3 2

1

8

7

6

5 4

3

2

1

TP410

TP408

TP409

TP411

10

9 8 7

6 5 4 3 2 1

TP441

4

3 2

1

24

23

22

21

20

19

18

17

16

15 14

13 12 11 10 9 8

7 6

5 4 3 2 1

TP207

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25 24 23 22 21 2 0 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

TP

151

CK

104

CK

106

TP

145

TP139

CK

101

TP100

TP144

TP133

48 47 46 45 44 43 42 41 40 39 38 37

36

35

34

33

32

31

30

29

28

27

26

25

23 22 21 20 19 18 17 16 15 14 13

12

11

10

9

8

7

6

5

4

3

2

1

CK105

CK

112

CK

103

CK

102

CK107

TP131

TP130

CK108

TP132

TP171

TP212

TP

204

TP

202

TP205

CK

207

CK224

CK222 TP203

TP206

TP210 TP209

CK201 CK202

CK205

CK203

CK206

CK204

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

50

49

48

47

46

45

44

43

42

41

40

39

38

87

36

35

34

33

32

31

30

29

28

27

26

25 24 2322 21 20 19 18 1716 1514 13 1211 10 9 8 7 6 5 4 3 2 1

TP201

TP208

TP

200 10

9 8 7

6

5

4 3 2 1

TP

651

TP

652

TP

653

TP

654

TP

655

TP

656

TP

657

TP

662

TP

658

TP

659

TP

660

TP

661

TP

663

TP

666

TP

664

14

13 12 11 10 9 8 7

6

5 4 3 2 1

TP

351

8 7 6 5

4 3 2 1

5

4 3 2 1

5 4 3

2 1

TP665

TP

119

TP

115

TP

105

TP

101

TP

109

TP

106

TP

102

TP

108

TP

103

TP

114

TP

110

TP

118

TP

111

TP

121

TP122 TP

120

TP

117

TP

116

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

TP401

TP415

TP403

TP402

TP400

TP416 TP417

6 5

4 3 2 1

TP

413

TP

414

4

3 2

1

TP405

TP404

N.C.

ROUT

GO

UT

TT

R

EFMAGI

EF

MA

GC

AG

ND

AV

CC

EF

MI

EF

MO

RF

2-1

AD

AG ADAGC

ADIPI

ADIPO

ADLPFO

22KO

22KI

WBO

TCGO

AOUT

BOUT

EOUT

FOUT

DV

CC

DA

TA

CLO

CK

LAT

CH

DT

EM

P

DG

ND

AG

ND

SG

AIN

DIS

C

ST

BY

AV

CC

BIA

SFIN

EIN

BIN

AIN

TCGI

RFADD REFO

REFI

RF4

RF3

RF2

RF1

BIAS

AGC ADIP

AGC EFM

DIFF

DIFFSW

and

R

HPF LPF

LOGIC

N.C

.

N.C.

X70

0KO

EF

MM

ON

LDC

NT

1

RAA10

ACRCER

PLCK

SYRS

FE

MO

N

DA

DA

TA

AD

DA

TA

DF

CK

BC

LK

LRC

K

DG

ND

VD

D3

DO

UT

DIN

X1O

X1I

VP

D

VX

I

AD

PO

N

DA

PO

N

OP

TC

NT

EM

PH

1

LDC

NT

2

TOTMONSBO

SBSY

SFSY

FOK

SENSE

COUT

MCCK

DINTX

RSTX

SYSD0

SYSD1

SYSD2

SYSD3

SYSD4

SYSD5

SYSD6

SYSD7

SYWRX

SYRDX

VB

AT

WB

I

TE

ST

1

TE

ST

0

FO

DR

R

FO

DR

F

TE

ST

2

X17

6KO

TR

DR

F

TR

DR

R

SLD

RF

SLD

RR

S

PD

RF

SP

DR

R

TC

G

AG

ND

AIN

FIN

EIN

BIN

DG

ND

VD

D1

VDD1

DGND

EF

MI

AV

CC

DG

ND

VD

D1

RAD0

RAD1

RAWEX

RARASX

RAA9

DGND

VDD2

RAD3

RAD2

RACASX

RAOEX

RAA8

RAA7

RAA6

RAA5

RAA4

RAA0

RAA1

RAA2

RAA3

TCRS

EFMOGIIC

VCC A3A2A1A0

A9RAS WEI/O2I/O1

VOUT

UOUTWOUT

RF

N.C.

FCOM

UIN

VIN

WIN

OSC

N.C.

N.C.

CX

GND

STBY

BRK

VCC1

VS

VCC2

FG

FCDET

CSLP1

CSLP2

S1

S2

G1

D1

S2

G2

S1

D2

D2

G1 S

D1

VCC

GND

N.C.

N.C.

N.C.

PG

ND

4

BA

T3

OU

T3

PG

ND

5

OU

T4R

BA

T4

OU

T4F

PG

ND

6

IN4F

IN4R

VGOFF

CP4

CP3

CP2

CP1

VCC2

GND

S/S VBAT/2MON

VBATIN2R

IN2F

PG

ND

3

BA

T2

OU

T2F

OU

T2R

PG

ND

2

BA

T1

OU

T1F

OU

T1R

PG

ND

1

IN1F

IN1R

MUTE1

OPOUT

OPIN+

OPIN-

CLK

VG

VCC1

IN3

MUTE

O2

O1

G

I2

VCC

I1

G

N.C.

OUT

VDD

VSS

N.C.

VSS

A2

A1

A0VCC

WP

SDA

SCL

AP

QD

DIN

T

ARQ

RP

LAY

JPNP

VCC

PC

NT

2

VSS

VS

S

VC

C

uST

BY

NM

I

EX

TA

L

WD

TO

VF

MD

2

MD

1

MD

0

RC

PC

NT

BU

ZO

UT

VSS

VSS

VS

S

EE

PD

PC

NT

1

PBOPON

RCLAT

PBLAT

RADAT

RACLK

RF

LAT

RM

DA

T

MCMON

CKSTP

INPGCK

PD

CN

T

INPGI

MCPGI

TEST1

TEST0

KHOLD

RE

C

PLA

Y

DC

EX

T

DS

PS

CK

DS

PS

TB

DS

PD

AT

HDON

DIS

CP

R

DCNT1

RKEY

EJS

W

AVCC

FOK

SENSE

RE

SE

T

CIN

SP

IN

XT

AL

VCC

EMPH0

LDON

INN

SW

VS

S

SY

RD

SY

RS

SY

WR

SYD7

SYD5

SYD4

SYD6

SYD3

SY

D1

SY

D2

SY

D0

XRST

EE

PK

AVSS

EP

CS

Vref LDVAR

TEMP

HKEY2

HKEY1

PLVON

PLVGIN

EL

CHGON

PLVBAT

CHGCNT

BATOFF

NIH

EP

WP

LCDRST

OPICGA

PC

RX

SC

K0

SP

WD

S

N.C.

SP

DR

F

DCNT1

SL+

S

L-

SP

VM

FO

DR

F

FO

DR

R

TRDRF

TRDRR

SLDRF

SLDRR

LDC

NT

2LD

CN

T1

VCCPWM

DIS

CP

R

SP

INH

DO

N

F-

F+

T-

T+

SPDRR

VC

CR

F

RF

LAT

AUSCLKAUDATA

VC

CLD

AUDATAAUSCLK

OPICGALDVAR

RFLAT TEMPLDON

VCCPU

HR

EC

HD

ON

EF

MO

LDCNT1

LDC

NT

2

SYRSSYRDSYWR

VCCDRAM

SYD0

SYD7SYD6SYD5SYD4SYD3SYD2SYD1

SLD

RF

T

RD

RR

DINT

CINSENSE

FOK

SP

DR

R

SP

DR

F

SLD

RR

TR

DR

F

FO

DR

R

FO

DR

F

XRT

INN

SW

P

DC

NT

EFMO

VC

CH

EA

D

ELO

N

DS

PS

CK

DS

PS

TB

DS

PD

AT

PD

CN

T

SP

IN

DISC

PR

CIN

SY

D0

SY

D1

SY

D2

SY

D3

SY

D4

SY

D5

SY

D6

SY

WR

SY

RD

SY

RS

SY

D7

DINT

AU

RE

SE

T

LDVAR

BE

EP

HP

LAY

RP

LAY

CHGCNT

HKEY2 R

KE

YHKEY1

TEMP

XRT SENSE FOK

INN

SW

CHGON

LDONOPICGA

PLVGIN

PLVON

PLVDRY

PCNT1 PCNT2

DSPRSTPBAULTPBMUTE

INPGCKINPGINMCPGIN

EMPH0

RCAULT

RCPCNT

F-

T+F+

T-

+2.7V

MAIN PWB-A

V U W

COM

-

-

+

+ HE

AD

M

OPIC

VC

C

MP

/RB

A

LDO

N

CO

M

CV

CC

VC

C

DG

ND

DG

ND

LDV

AR

AG

ND

E

F

T-

F+

T+

F-

RF

2

RF

4

RF

3

RF

1

24

N.C.

N.C.

N.C.

N.C.

N.C

.

N.C

.

N.C

.

36

35

N.C.

N.C.

N.C.

N.C.

N.C.

26

25 12 11

N.C.

N.C.

G2

TP406

22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

OPTICAL PICKUP UNIT

MECHANISM FLEXIBLEPWB ASS'Y

M

M

78

77

76

TEMON

SBCK

100

99

98

50

49

48

N.C

.

N.C

.

N.C

.

N.C.

28

27

26

N.C.

N.C.N.C. N.C.

27

26

78

77

76

100

99

N.C.

N.C.

PLAYBACK SIGNALRECORD SIGNAL

2

18

1617

1

11

10

3

4

9

12

1415

13

+B

+B

+B

+B

+B

+B

2.5V2.5V

1.75V

0V4.5V

0V

C1021

R105390K

C1031 C1040.027

R1541.2KC161

1

Q1012SA17457

LASER ON/OFF

R1611.2K

C1300.1

R10422K R103

22K

C121270P(CH)

C123390P

C124390P

C122270P(CH)

R10222K

R10122K

R10656K

C1100.22

C1060.22

C1091

C1070.012

C1120.033

C1110.0033

C20922P (CH)

XL20133.868MHz

R22

21M

C21

15P

(CH

)

C2125P(CH)

C2040.47

C20

70.

1

R206270K

R20

533

0K

C2050.1

C10010/6.3

L10010µH

C2011

C47

R20233

IC202 IX2567A4M D-RA

SW403LID DETECTION

D461RB731U

R463100K

R464100K

C4540.0022

R466560K

R465100K

R461100K

D431HSB2838

R431330K

IC431S80820LNRESET

C4310.47

R6221KD622MA8075M

IC621RN4904DIGITALTRANSISTOR

R621100K

C60622/6.3

C6050.1

C6220.1

C60

41

C6031

C6011

C6021

L603 4.7

L604 4.7

L602 4.7

L601 4.7

IC601 LV8017W

L6084.7

L6104.7

L6094.7

C61

0

1

C60

91

C6081

R60

156

K

C6511

R60056

D651F10J2E

C6520.1

IC651LB1930M

MOTOR DRIVE R4031K

R404100K

CN601

R921330

R922100K

C35310/6.3

C3540.1

IC353 FTD2005

N-ch MOS FET

C9120.0022

C91

3

0.00

22

C91

40.

0022

R9041

R90

31

R9021

R9011

C9070.022

C9113.3

C9080.047

C9060.022

R90822K

XL4014.19 MHz

R42322K

R42

422

K

R42

522

K

R402100K

C4010.1

R40710K

R408100K

SW

402

HO

LD

R41215K

R4141K

R4131K

IC40258X2402TEEPROM

R4111K

R41

51K

R41

610

0K

R406100K

R40510K

SW401EJECT

CN101

C17233/6.3 C171

33/6.3

L17110µH

IC201LR37811 ENDEC/SERVO/ATRAC

C1650.033

IC901 LB1971V SPINDLE MOTOR DRIVE

C9040.33

C905470P

C9010.0022

C9030.0022

R9061.5M

C9020.0022

Q901UN5210

R92

010

0K

IC35174ACT02TNOR GATE

C3570.1

R3514.7

IC401IX0341AWSYSTEM

MICROCOMPUTER

SW

902

DIS

C P

RO

TE

CT

M901SPINDLEMOTOR

M903LIFTMOTOR

M902SLIDEMOTOR

IC101IR3R55

IC354CPH5608N-ch MOS FET

D351SBE803

C3610.039

C2030.1

R2041K

R36115

C9100.1

IC101:RF SIGNAL PROCESSOR

C35127P(CH)

IC601: 4-CH PWM DRIVER

PH901PHOTOINTERUPTER

Page 27: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 27 –

MD-SR50H/50W/60E/60W

7 8 9 10 11 12Figure 27 SCHEMATIC DIAGRAM (2/2)

6 5

4 3 2 1

TP842

TP

841

TP805

5

4 3 2 1

6 5

4 3 2 1

6

5 4 3

2 1

8 7

6 5 4

3 2 1

3 2

1 4

3 2

1

5

4 3 2 1

20

19

18

17 16

15 14

13 12 11 10

9 8 7

6

5

4 3 2 1

5

4 3 2 1

TP729

5

4 3 2 1

8

7

6

5 4

3

2

1

8

7

6

5 4

3

2

1

TP500

16 15 14 13 12 11 10 9

8 7 6 5 4 3 2 1

TP803

TP804

24 23 2 22120 19 18 17 16 15 14 13

12 11 10 9 8 7 6 5 4 3 2 1

TP702

TP704

TP706

TP708

TP701

TP705

TP707

TP703

TP714

TP711

TP713

TP712

9 8

7

6

5

4 3 2 1

4

3

2

1

TP462

TP459 TP458 TP457 TP456 TP455 TP454

TP461

TP451 TP452 TP453

TP463 13 12 11 10 9 8

7

6 5

4 3 2 1

TP460

TP486

TP488

TP481

9 8 7

6 5

4 3 2 1

TP489

TP482

TP487

TP483

24 23 22 21 20 19 18 17 16 15 14 13

12 11 10 9 8 7 6 5 4 3 2 1

3 2

1 TP

771

TP772 8 7

6

5

4 3

2

1 TP721

TP722

TP723

TP724

TP725

TP726

TP802

TP801

3

2

1

5 4

3 2 1 6

5 4 3

2 1

6 5 4

3 2 1 8 7 6 5

4 3 2 1

5

4 3 2 1

4

3 2

1

6

5 4 3

2 1

6 5

4 3 2 1

TP809

6

5 4 3

2 1

TP412

GND I/O4I/O3CAS OE

A8A7A6A5A4VCC

A3A2A1A0

A9RAS WEI/O2I/O1

VC

OM

AO

UT

L

PW

AD

PW

DA

VS

S

DE

M1

DE

M0

SD

TO

SC

LK

LRC

K

AIN

L

AIN

R

N.C

.

AT

T

LIN

LLP

FO

L- L+

R+R-

RLP

FO

RIN

LHPVEE

LHP

VC

CD

AT

CLK

LAT

RHPVEE

RH

PV

CC

HP

BE

EP

LPF

AT

T

AMPuGAIN SEL.

AMPuGAIN SEL.

LOGIC

BIAS

N.C.

L

R GND

VCC

GND

Vout

VEE VCC

RO

UT

DG

ND

RIH

P

LOU

T

LIH

P

AG

ND RI LI

STAND

ERRAMP

VR

EF

CTRL

CM

P

RS

FF

Q

R

S

BU

F OUT

BYEIP

EIN

OS

C ROSC

VCC

GND EO

EOGND

VCC

ROSC

OS

C

EIN

EIP

OUT

CTRL

STAND BY

BU

F S

R

Q

RS

FF

CM

P

VR

EF

ERRAMP

GND

VCC

G1G2

S2

S2

S1

S1

D D

OUT

VDD

VSS

VSS

VDD

OUT

V+

V-

O

- +

+

- O

C.

N.C.

N.C

.

N.C.

N.C.

VC

C2R

0V

+2R

5

PCNT1 PCNT2

RC

PC

NT

PLVON CHGCNT

PLVDRYCHGON

DCVDD

VG

+2R7

HRECHPLAY

HKEY1

HKEY2

VGBATT

VCCBATT

VC

C4R

5

DC

NT

1

OPTCNT

DIN

EMPH1

ADDATADADATA

LRCK

DFCKBCLK

DAPON ADPON

VCCDRAM

VC

CM

ICO

M

-2R

5

VC

CA

DD

A

EM

PH

0 DSPDATDSPSCKDSPSTBDSPRST

PB

AU

LT

PB

MU

TE

BE

EP

RP

LAY

R

KE

Y

AU

RE

SE

T

MCPGININPGININPGCK

AU

DA

TA

AU

SC

LKR

CA

ULT

VAR GCNT

EY2 EY1

MP

DONOPICGA

PLVON

DRY

PCNT1 PCNT2

RCPCNT

BATTERYTERMINAL,-

R-ch

L-ch

R-chL-ch

2.0V

+2.7V

+2.7V

L-chR-ch

KE

Y

PLA

Y

LCD

AS

S`Y

LCD

LCD

DR

IVE

R

GND

P-MODE

ENTER

DISPLY

VOL DOWNVOL UP

BASS

EDIT

REC

SKIP DOWN

SKIP UP

STOPPLAY

KE

Y F

LEX

IBLE

P

WB

AS

S'Y

13 12 11 10 9 8

7

6 5

4 3 2 1

9 8 7

6 5

4 3 2 1

N.C

.

LPF

N

.C.

AO

UT

R

VD

D

MC

LK

SD

TI

BATTERYTERMINAL,+

5

78

6

DG

S

+B

DG

S

+B

+B

TP728

TP727

+B-B

+B

+B

+B

-B

-B

-1.15V

0V

-1.6V

0V

5.4V

5.1V

2.1V 0V

1.6V

0V4.5V

0V

0V

0V

0.6V

3.4V

2.9V 4.5V

3.9V

4.5V

3.9V4.5V

4.5V

3.9V4.5V

4.5V

1.83V

0V

0V

C20247/6.3

R20233

IC202 IX2567AF4M D-RAM

R45456K

R4528.2K

R45318K

R4515.6K

R45856K

R45718K

R4568.2K

R4555.6K

CN451

CN482

C4821

C4811

C70110/6.3

C70447/6.3

C70210/6.3

R70222

C70

30.

01

IC701IR3R54NAUDIO AMP.

R703100K

R701100

C7340.1

C7330.1

R7208.2K

R7125.6K

R7115.6K

R7198.2K

L71047

R715100K

R716100K

R7181K

C713 1

C7141

Q711RN1444 A

R7171K

C7150.1

C712100P(CH)

C71

110

0P(C

H)

R71310K

C7263.3/10

R725100

R72639K

Q7212SD1979S

C7253.3/10

L702L703

R71410K

L704

J701OPTICAL/LINE IN

J702MIC IN

C7223.3/10

R7246.8KR

723

6.8K

C7240.001

C7230.001

C7213.3/10

C7310.22 R

727

8.2K

R7281K

R7292.7K

R7302.7K

J703REMOTECONTROL/HEADPHONES

C4910.1

D494MA8075M

L49133

R4921K

D492MA8075M

C4921

D49

6M

A80

75M

D49

5M

A80

75M

R7684.7

R7674.7

C7660.22

C7650.22

R76615

R76515

C7612.2

IC70

3 IR

3R59

NA

UD

IO A

MP

.

C7531

C7622.2

R758100

R761220K

C7541

R76

291

K

R754150K

R7572.2KC7600.1

C7581

L50047µH

C5060.001

C55

10.

1

C50

50.

001

C50010/6.3

C5111

C50

10.

0022

R501470

C5092.2

C5102.2

C5020.0022

R502470

C50

33.

3/10

IC50

1 A

K45

50V

T

C7741

IC77162GR2522

2.5V REGULATOR C7730.22

C2061

IC203 62FP2002

2V REGULATOR

L8710.47µH

C87210/10

L771100µH

C77147/6.3

C86947/6.3

C8681

L862100µH

D801F05J2L

R8011.1A

R8031.2K L801

R8081

R8101

C8030.1 IC803

S80819LNRESET IC

L800J801DC IN

Q8912SA1873GR

R802560

D80

2M

A80

51M

R8091

R8111

D80

3R

B52

0S30

R80656K

C8011

C8180.1

IC809 RN4904DIGITAL TRANSISTORR818

3.3MR81

922

K

IC892 HN1C01FUTRANSISTORR293

2.2KR294100K R296

100KR295100K R281

22K

Q2502SA17457

IC251FTD2017N-ch MOS FET

C8020.01 IC801

62RP20022.0V REGULATOR

Q803UN5213

R292100K

R28

62.

2K

R282

1M

C2520.1

R252150K

R25727K

R272100

R25422K

D2511SS400

R25339K

IC256 RN4911DIGITALTRANSISTOR

IC25

5 N

JM02

2V

R26656K

R26268K

R26368K

R27168K

R27068K

R291100

C2911

IC257 S80808LN

C2540.1

R250100

C2550.1

C2530.1

R2554.7K

R25656K Q

251

2SD1

819A

S

R28

510

0K

C25

10.

1

R251100

R2611K

R28

310

0KR

287

560K

R28

439

0K

Q2572SA1832 GR

IC253RN4904

IC258HN1C01FU

IC260RN4904

R26930K

R26710K

C8481

R841100K

C84410/6.3

IC842 XC62HS022.35VREGULATOR

D822F10J2E

C83

20.

1

D831HRB0103B

C83

50.

1

C83

40.

1

D832HRB0103B

C83

30.

1

C8380.1

R83347

D823F10J2E

C8281

C8251

L82110µH

IC821CPH3403N-CH MOS FET

D821D1FH3

C82

13.

3 C82

222

/6.3C823

220/4

W403D DETECTION

22K

1

7R422100K

SW

402

HO

LD

L85122µH

R44312K

R857330K

C856330P(CH)

R85

539

0K

R85610M

R85410K

C857560P

C8513.3

C85

222

/6.3

D851D1FH3

IC85

1C

PH

3403

C8621

C8631

D862F10J2E

D86

1F

10J2

E

C853220/4

IC852 IR3M14NDC/DC CONVERTER

C83

01

R823270KR827

220K

R825300K

R82610M

C826100P(CH)

R82410K

C827220P

(CH)

IC822 IR3M14N

DC/DC CONVERTER

C8601

R83

218

0K

C83

90.

33

R853270K

R83

118

0K

C8500.1

R850100K

F84

10.

4A,

DC

60V

C8411

L8414.7

IC8416372C2812.8V UP

CONVERTER

D842HRB0103B

C8471 C

846

0.1

D841F10J2E

C8450.1

R84

447

C84233/6.3

C84

30.

22

C8761

Q4612SD1819AS

R46227K

R46068K

C849220/4

C840220/4

Q8012SJ520TL

R80722K

IC802 HN1C01FU

TRANSISTOR

C8040.1

R81310K

R81210K

R81410K

R81

510

K

R81

61.

5K

C8371

C8361

IC87362GR4522

R87

110

K

IC871 TC7S86FUEXCLUSIVE OR GATE

IC259HN1C01FUPOWER TRANSISTOR

D2811SS400

R28847K

C2590.1

R27

739

K

R279100

IC501: AD/DA CONVERTER

IC253: DIGIITAL TRANSISTORIC258: TRANSISTORIC255: OP AMPIC260: DIGIITAL TRANSISTOR

4.5V REGULATER

Q721:RIPPLE FILTER

N-CH

MO

S FE

T

RESET

Page 28: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 28 –

MD-SR50H/50W/60E/60W

• The numbers 1 to 18 are waveform numbers shown in page 31.

: Through-hole where the top, bottom and +B patterns are connected. : Through-hole where the top, bottom and hround patterns are connected. : Through-hole where the top and bottom patterns are connected.

A

B

C

D

E

F

G

H

1 2 3 4 5 6

Figure 28 WIRING OF P.W.BOARD (1/3)

R291

HOLDSW402

IC257

R292TP803

TP171 TP106 C291

TP441

C454

R464TP100

L171

C171

C172

CK112 C

110

C10

9

C11

2

C11

1

C106

C107TP105

TP14

4 TP110 TP139

TP

118

TP103

TP101

C161

TP11

4

R106Q101

CK

105

IC101

C102

CK101 CK107

R154

C10

3

R408

TP109

C10

4

R407

TP111

CN

101 R105

TP

102

TP

116

TP404 CK106

CK104 CK10

2

TP115 C130

CK103 TP151 TP117 R422

TP145

TP108

TP119 CK108

TP

133

TP121

TP130

TP

131

TP132

TP122 TP

120

TP205

R10

1 R102

R103 R104

CK901

TP

351

C121

C122 C123

C124R920 R412

TP

409

TP665 TP407

TP20

1 R411

IC351

R413

C357TP658

R414IC402

TP

408

TP

410

TP

411

R415

TP655 TP659

R416

TP601

R404

R40

6 R405

TP405 TP

652 R403

TP

651

TP406 TP660

TP

653

C604

C603

L604 L603

TP661

C609

R921

TP657

TP610

CN

601

R922

L609

TP654

C836

IC873 IC601

L610

C62

2

TP666 C610

TP662

TP663

TP664

C837

TP602

C651

R600

TP708 EJECTSW401

L710C715

Q711

TP

707

TP706

C734C733

R728R717

C70

4

C731

R701 TP202

R718

C505

C50

6

R727

TP702 C703

R703

TP703

C713

TP713

R502

C50

2

IC701

TP

701

TP704

R715

IC501 TP714 C501

R713

R716

TP712 R501

R714

TP705

R72

9

TP

500

C721

TP711

R730 L500

C722 TP727 TP728

TP729

TP721 L800TP722

TP805

D801

TP772

TP

725

TP

726 TP723

R492 TP801 TP802 C492

TP771 IC703

R7

65

D49

4

R767

R762R768

C491

TP724

R766

D49

5

D496L801

R808R810

C765 C766

C758D492 L491

C481

C76

0R

757

R75

8

R75

4

R761

TP453

R457

TP412 TP451

TP452

R456

TP481

TP454

R458

R455

TP482

TP456

C482

CN

482

CN

451

TP483 TP460

TP486

TP458

TP461 TP487

TP489 TP463

TP459 TP488

R451

R452

R45

3

R454

TP462

TP206

TP656 R463

TP457

R806

TP455 TP419

R465

D80

3TP210

R461

Q891

TP209

R466

R811TP41

7 R802D431

TP416 TP208

D802

R801R809

R803C431

TP204

R431IC431

R853 IC852 TP403

TP400 IC401 C857

C860C856

R854TP401 C825

XL401

R85

5

R856R402 D822TP414 C830

R831

TP413 C876

R823 C828

IC822 C401 R832TP415 TP212

R871C839

C82

7

TP203 TP402

C82

6

IC87

1

R826R443R423

R425

R424

C206

TP207 D823

C259TP804

C200TP200

R287

R269

R283

R819

R277IC809

R26

1R

262

R263

R266R267

TP809

Q257

R284IC259

R279R271

R2

70

C2

55 IC256 IC258

IC2

53

IC26

0 TP

842

R28

8

R281

R286

C254

R250

R272

R256

R255R257

R28

5

R2

82

Q251D281 R252

IC255

IC251 R253

R251

R293

Q250

TP

841 D251

C25

1

C25

3R

254

C252

R29

5R

294R296

IC89

2

R827R824

R825

R857

D461

C714

1

5

1015

20

2530 35 40 45

50

55

60

65

70

80859095

PWB-A(TOP VIEW)

1

4 5

858

14

11

1

1

1

1

1

1

1

33

3

3

3

44

4

4

4

4

4

4

6

6

6

6

1 3

4

6

1 34

6

5

5

5

8

8

3

2

100

75

76

26

1

2 3

J801DC IN

J703REMOTECONTROL/

HEADPHONES

1

1

2

3

3

4

1

1

1

5

5

1012

1

510

12

1315 20

24 13

15 20

248

9

1015

16

8 7

2

1

653

4

13

1

9

1

1

5

10121520

132425

30

35

3640

3745

48

1

5

10

1215 20

13 2425

30

35

3640

37

45

48

1

22

7

5

51

1

4

8

8

10

14

1

164 5TO MECHANISM

FLEXIBLE PWBASS'YP30 6-C

TO OPTICALPICKUP UNITP30 1-D

BATTERYTERMINAL,+

BATTERYTERMINAL,-

51

6

34

23

913

15

18

5 7 8

6

1

1411

10

TO LCDASS'Y

P30 5-E

TO KEYFLEXIBLE

PWB ASS'YP30 3-E

1716

3

4

2

J702MIC IN

Page 29: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 29 –

MD-SR50H/50W/60E/60W

7 8 9 10 11 12

Figure 29 WIRING OF P.W.BOARD (2/3)

R72

3C

723

R72

4

C72

4

J702MIC IN

L704

C503C500

J701OPTICAL/LINE IN

C725C702C701

C511R725

R72

6C510

C509

Q721

R702

C712

L703

C726

R711

R71

2R

720

R71

9

C774

C773

IC771 C551 C872

L871

10

10

65

5

1

1

D65

1

IC651

C65

2

C90

1C

902

C90

3R

905

C914

C605C904

R906

C905R901R902

R903C608 L608 R904

IC901

CK205 CK206

C203

R204

C91

2R

601

R90

8

C910

C908

C90

7

C906 C913

C911C361

C207

R205 Q901

IC201 R206 C351 R361

IC354

C205 D351

C208

IC353

C353C165R161

R351

L100 C354

C100IC202

IC842

C848

C844

R841C846

C847C841

F841 D842

SW403LID DETECTION

R850

C845

R844

C81

8R818

C850

4 1

23

C202

L841C833

IC841 D831

C835

D832

R202D841C843

C842C821

L821

C83

4

C83

8

R83

3

C83

2 C201

L200

IC821

CK222

IC203 CK224

D821

C822

C21

2R222C852

C211XL201 C851

CK

207

D851

L851

L862 C869IC851

C868

C863CK203 D861

C862

CK20

4

CK202 CK201

C840 Q461

D862

C209R462

R460

IC621

C606R621C823

R622

D622

R81

6

R81

5

R814Q803

C853IC802

C849

R807

R81

2R

813

C804Q801

L702

C711L771C771

IC803 C762

C803

IC80

1

DC INJ801 C753C761C802

C754

C801

J703REMOTECONTROL/

HEADPHONES

C204

C602 C601

L602

L601

20 16 15 11

1 5 6

10

13

4 5

12

13 15 20

24

1

100

1

34

5

1

14

2

3 35 1

45

5

8

5

10

15

20

25303540455051

55

60

65

70

75 76 80 85 90 95

26

7

22

1

1

5

4

43

3

12

4

PWB-A(BOTTOM VIEW)

8 6

Page 30: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 30 –

MD-SR50H/50W/60E/60W

Figure 30 WIRING OF P.W.BOARD (3/3)

A

B

C

D

E

F

G

H

1 2 3 4 5 6

Optical Pickup Unit (15)

Magnetic Head Flexible PWB (23)

Magnetic Head (21)

Mechanism Flexible PWB (8)

M902Sled Motor

PH901PhotoInterrupter

M901Spindle Motor

SW902DiscProtect

To Main PWBCN601

To MAIN PWBP28 6-F

CN482

LCD Ass'y (214)Key Switch Flexible PWB Ass'y (213)

CN451

CN101To MAIN PWBP28 1-C

P28 1-E

To MAIN PWBP28 6-E

M903Lift Motor

Page 31: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 31 –

MD-SR50H/50W/60E/60W

WAVEFORMS OF MD CIRCUIT

NORM:200kS / s

1994 / 12 / 15 22:54:19

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.000V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : NORMALType : EDGE CH4Detay : 0.0nsHold OFF : MINIMUM

T

TP208(FEMON)

CK204(FOK)

TP122(F+)

CK205(SENSE)

StoppedCH1=1mVDC 10:1

CH3=5VDC 10:1

CH4=2VDC 10:1 (50ms/div)

50ms/divCH2=500mVDC 10:1

T

1

4

3

2

1

2

3

4

NORM:100MS / s

1994 / 12 / 16 00:24:17

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 5KZoom : 5K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : AUTOType : EDGE CH3Detay : 0.0nsHold OFF : MINIMUM

T

SDTi

MCLK

SCLK

LRCK

StoppedCH1=2VDC 10:1

CH3=2VDC 10:1

CH4=2VDC 10:1 (50us/div)

50us/divCH2=2VDC 10:1

T

1

4

3

2

5

6

7

8

ENV

1994 / 12 / 16 01:03:40

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.000VCH4 : 0.00V

=Trigger=Mode : NORMALType : EDGE CH2Detay : 0.0nsHold OFF : MINIMUM

T

TP201(EFMMON)

TP210(TEMON)

TP209(TOTMON)

StoppedCH1=1VDC 10:1

CH3=500mVDC 10:1 (2ms/div)

2ms/divCH2=2VDC 10:1

T

1

2

9

10

11

ENV

1994 / 12 / 15 23:31:21

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : NORMALType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

T

SPDRR

TP601(VM)

StoppedCH1=2VDC 10:1 (50ms/div)

50ms/divCH2=2VDC 10:1

T

1

2

12

13

FULL 20MHzBandwidth

ONSmooth

OFF

1994 / 12 / 18 09:26:46

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : AUTOType : EDGE CH2Detay : 0.0nsHold OFF : MINIMUM

T

TP208(FEMON)

TP210(TEMON)

TP656(SL+)

TP657(SL-)

StoppedCH1=2VDC 10:1

CH3=2VDC 10:1

CH4=2VDC 10:1 (1s/div)

1s/divCH2=2VDC 10:1

1

4

3

2

ENV

1

10

14

15

1994 / 12 / 16 01:23:16

=Filter=

=Tracel= P-P 1.280V

=Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.000VCH2 : 0.00V

Main : 1KZoom : 1K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : AUTOType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

TTP201(EFMMON)

StoppedCH1=2VDC 10:1 (500ms/div)

500ms/div

1

MORM:200MS/s

9

1994 / 12 / 15 08:57:26

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.000VCH4 : 0.0V

=Trigger=Mode : NORMALType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

T

TP201(EFMMON)

TP210(TEMON)

TP209(TOTMON)

StoppedCH1=2VDC 10:1 (2ms/div)

2ms/divCH2=2VDC 10:1

1

2

ENV

T

CH3=500mVDC 10:1

9

10

11

1994 / 12 / 15 09:58:45

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : AUTOType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

T

TP208(FEMON)

TP210(TEMON)

SPDRR

TP601(VM)

StoppedCH1=2VDC 10:1

CH3=2VDC 10:1

CH4=2VDC 10:1 (1s/div)

1s/divCH2=2VDC 10:1

1

3

4

2

ENV

1

10

12

13

1994 / 12 / 15 08:39:46

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.0V

=Trigger=Mode : AUTOType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

T

TP210(TEMON)

TP656(SL+)

TP657(SL-)

StoppedCH1=2VDC 10:1

CH3=2VDC 10:1 (1s/div)

1s/divCH2=2VDC 10:1

1

3

2

NORM:1kS/s

10

14

15

1994 / 12 / 15 21:54:52

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.00VCH2 : 0.00V

Main : 10KZoom : 10K

CH3 : 0.00VCH4 : 0.00V

=Trigger=Mode : NORMALType : EDGE CH2Detay : 0.0nsHold OFF : MINIMUM

T

T

TP201(EFMMON)

TP210(TEMON)

TP121(T-)

StoppedCH1=2VDC 10:1

CH3=1VDC 10:1

CH4=1VDC 10:1 (500us/div)

500us/divCH2=2VDC 10:1

1

3

4

2

ENV

9

10

18

For TP208, TP209, and TP210, use the specific LPF, andobserve the waveform.

When watching the EEM monitor (TP201)Set MSL from 00H to 80H with EEPROM control setting. Aftercompletion restore 00H.

1994 / 12 / 15 09:10:03

=Filter= =Offset= =Record Length=Smoothiing : OFFBW : FULL

CH1 : 0.000VCH2 : 0.00V

Main : 4KZoom : 4K

CH3 : 0.000VCH4 : 0.0V

=Trigger=Mode : NORMALType : EDGE CH1Detay : 0.0nsHold OFF : MINIMUM

T

CK105(HPFO)

CK108(WBO)

StoppedCH1=500mVDC 10:1 (20us/div)

20us/divCH2=2VDC 10:1

1

2

ENV

16

17

1000P

10KTP

Measurement

Page 32: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 32 –

MD-SR50H/50W/60E/60W

TROUBLESHOOTINGIt is advisable to use the TEST mode (refer to Error Data Display Mode, P19) indicating the causes of troubles beforestarting repair. Causes of operation errors (up to 10 errors) are recorded as error codes. This information is usefulfor repair.

When does not functionWhen the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Cleanthe objective lens,and check the playback operation.When this section does not operate even after the above step is taken,checkthe following items.Remove the cabinet and follow the troubleshooting instructions."Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens.Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off.Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.Do not touch the lens with the bare hand.

Is the power supply turned on when the remote controlbutton or main unit button is pressed? No

Perform the check stated in item "Power is not turned onwhen the PLAY button is pressed".

Perform the check stated in item "Abnormal display".No

Yes

Does the display operate normally?

Is playback state set?

Yes

Perform the check stated in item "Playback state connot beset".No

Is audio output normal?

Yes

Perform the check stated in item "Audio playback circuit".No

Is recording/playback operation normal?

Yes

Perform the check stated in item "Recording/playbackoperation".No

• Power is not turned on when the / button ispressed.

No

NoYes

Check the periphery of remote controller and main unitheadphone terminal (J703) and IC401.

NoIs the pin 95 of IC401 in H state? (TP404)

Is operation normal when the main body button is pressed?

Check the position of Hold switch.

Is power turned on when the remote control button ispressed?

NoDoes the pin 66 of IC401 oscillate? (TP400) Replace XL401.

Yes

Page 33: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 33 –

MD-SR50H/50W/60E/60W

Yes

Check whether there is defective solder joint of audio signalline between IC703 and J703No

Yes

Is audio wavefrom output from J703 pins 3 and 4.

Check the pins 4 and 21 of IC703.No

Yes

Is audio wavefrom output from IC703 pins 8 and 17.

Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11,12.No

• Abnormal display

No

Yes

Are the pin 4 (VCC) and pin 5 (GND) normal?Is waveform output from IC401 pins 9,11,13?Is waveform output from CN482 pins 6 to 8?

• Playback state cannot be set

Is initialization performed normally in case of high- reflectiondisc playback?

Yes

Check between IC401 andCN482.

No

Check the periphery of IC401.

Does the playback time display advance?Yes

Position check in INNER mode

Check IC201 and IC202 connection line.

Is the lead-in photointerrupter set to OFF when the opticalpickup moves to the innermost periphery in NORMAL mode?(Is TP654 in H level?).

Check the lead-in photointerrupter, mechanical flexPWB soldering and CN601 connection.No

Ia an attempt to repeat repeatedly the TOC part performedon the low-reflection disc?

Yes

NoNo

Replace the disc.No

• Audio playback clrcult

When it has been ascertained that the address up to cluster address is normal in the TEST mode.

Yes

Is audio wavefrom output from IC501 pins 15 and 16?

Check headphones jack,and periphery of headphone.

Although the playback time display is acting., no sound is given during playback in the normal mode.

Check for pattern breakage of flexible PWB, check fordefects of display microcomputer (replace the display unit).

Page 34: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 34 –

MD-SR50H/50W/60E/60W

• The spindle motor fails to run.Does the head move

NoDoes the waveform appear on the IC201 pins 24 and 25 afterTEST mode AUTO2 completion and in this state?

Check the IC201 periphery.

Yes

Does waveform appear on the IC601 pin 43?

Does waveform appear on IC901 pins 1, 2 and 23?

Replace the spindle motor.

YesNo

L608, IC201, IC901, CN601 and flex, etc. soldering check

NoReplace. IC601

Yes

• Recording/playback operation

Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.

YesDoes the head move down, failing to start record evenwhen the continuous record mode is set after address?

No

Does level of pins 86 of IC401 and pin 17 of IC101 changedepending on record and playback?

Is RF pattern output from IC201 pin 50?

Yes

NoCheck for soldering failure of IC201 .

NoCheck periphery of IC401 and IC101.

Check whether there is any damage in IC101, periphery oflaser diode.

Yes

Check for defects of IC351 in head drive flexible PWB,head,flexible PWB.

No

YesIs audio monitor output given in normal mode LINE INrecord?

Check waveforms of pins 8,10,11,12 of IC501, pins 70 to 73 ofIC201.

Is waveform obtained on IC501 pins 2 and 3?

No

YesCheck whether the pin 13 of IC501 and the pin 59 of IC201 arein H state.

No

NoDoes voltage on the IC701 pins 13 to 15 change in case ofrecord VOLUME UP/DOWN?

Is audio waveform observed on the pins 8 and 17 of IC703?

Yes

Check whether input waveform is observed on the pins 4and 21 of IC703.

Yes

Check voltage of pins 52 and 53 of IC201, pins 3, 4, 7, and 9 ofIC651, pins 1 and 2 of CN601. Check whether disc is record-inhibited.

Does the RF waveform appear at TP201 (When monitoringthe RF waveform, set to MSL:80H using the control settingitem of EEPROM) when recording/Playback is performed

Page 35: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 35 –

MD-SR50H/50W/60E/60W

1 P12/TCLKA CIN Input Track cross signal/focus drive detection

2 TCLKB SPIN Input Spindle motor FG pulse detection input

3 P14 INNSW Input Mechanism inner SW position detection input

4 P15 DISCPR Input Disc record inhibition switch input

5 TIOCA2 SPWDS Input Spindle motor FG pulse width detection

6 P17 PDCNT Output Inner detection PD current control output

7 Vss VSS — Ground potential

8* TxD0 RMDAT Output Remote control indication data output

9 TxD1 DSPDAT Output Unit indication data output

10 P32 PCRX Input Spare

11 P33 DSPSTB Output Main unit's display strobe output

12* SCK0 SCK0 Output Serial I/O clock output (not used)

13 SCK1 DSPSCK Output Unit indication data clock output

14 PE0 _EPCS Output EEPROM chip selection output

15 PE1 EEPD Input/Output EEPROM serial data input/output

16 PE2 EEPK Output EEPROM serial clock output

17 PE3 EPWP Output EEPROM write protection

18 Vss VSS — Ground potential

19 PE4 _EJSW Input Ejection lever opertion detection input

20 PE5 SYRS Output System LSI register selection output

21 PE6 _SYRD Output System LSI read enable output

22 PE7 _SYWR Output System LSI write enable output

23-30 PD0-PD7 SYD0-SYD7 Input/Output System LSI parallel data bus

31 Vss VSS — Ground potential

32* PC0 CKSTP Output Microcomputer stand by operation monitor

33 PC1 _XRST Output System LSI hand reset output

34 PC2 SENSE Input System LSI servo sense input

35 PC3 _FOK Input Focus OK signal input

36 PC4 RCLAT Output Record audio IC data latch output

37* PC5 TEST1 Input Test mode setting input 1

38* PC6 TEST0 Input Test mode setting input 0

39 PC7 EMPH0 Output Audio emphasis control output 0

40 Vcc VCC — Positive power supply

41 PB0 _MCPGI Intput Microphone plug insertion detection input

42 PB1 _INPGi Intput Line/digital plug insertion detection

43 PB2 INPGCK Intput Line/digital plug type detection

44 PB3 RADAT Output RF/Audio IC serial data output

45 PB4 RACLK Output RF/Audio IC data clock output

46 PB5 PBOPON Output Audio IC output stage control output

47 PB6 PBLAT Output Audio IC data lactch output

48 PB7 _LCDRST Intput LCD driver reset output

49 Vss VSS — Ground potential

50 PA0 _ELON Output EL light control output

51* PA1 PA1 Output Spare

52* PA2 PA2 Output Spare

53 PA3 RFLAT Output FL amplifier IC data latch output

54* P20 P20 Output Spare

55 P21 _REC Input Unit REC buttom operation detection input

56 TIOCC3 BUZOUT Output Beep sound pulse output

57 MD0 MD0 Input Operation mode selection input 0

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (1/3)FUNCTION TABLE OF IC

Pin No. FunctionPort Name Terminal Name Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Page 36: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 36 –

MD-SR50H/50W/60E/60W

58 MD1 MD1 Input Operation mode selection input 1

59 P23 _PLAY Input Unit PLAY button operation detection input

60 WDTOVF WDTOVF Output Watch dog timer (not used)

61 MD2 MD2 Input Operation mode selection input 2

62 RES _RESET Input Microcomputer hard reset input

63 NMI _NMI Input Nonmaskable interruption (not used)

64 STBY _STBY Input Microcomputer standby input (not used)

65 Vcc VCC — Positive power supply

66 XTAL XTAL — Crystal connection terminal

67 EXTAL EXTAL — Crystal connection terminal

68 Vss VSS — Ground potential

69 PF7 _DCEXT Input DC-IN detection input

70 PF6 PCNT2 Output Vcc supply control output of power IC

71 PF5 PCNT1 Output Vref supply control output of power IC

72 PF4 RCPCNT Input/Output Record cir cuit power control output

73 PF3 _DINT Input System LSI interruption

74 PF2 _ARQD Input Disk cap opens and closes detection/it is started and required

75 PF1 _RPLAY Input Remote control PLAY key operation detection

76 IRQ0 _ARQK Input It is started by the button input, requirement

77 AVcc AVCC — A/D and D/A converter positive power supply

78 Vref VREF — A/D and D/A converter reference voltage

79 AN0 PLVBAT Input Battery voltage detection input

80 AN1 PLCHK Input Power supply circuit abnormal detection input

81 AN2 HKEY2 Input Unit key operation detection input 2

82 AN3 HKEY1 Input Unit key operation detection input 1

83 AN4 RKEY Input Remote control key operation detection

84 AN5 TEMP Input Ambient temperature detection inputinput

85 AN6 CHGCNT Output Charging current control output

86 DA1 LDVAR Output P.U. laser power setting output

87 AVss AVSS — A/D and D/A converter ground potential

88 Vss VSS — Ground potential

89 P24 PLVOW Output Battery voltage measurement

90* TIOCB4 MCMON Output Internal openation status monitor

91* P26 P26 Output Spare

92 P27 PLVGN Output Battery voltage detection gain select output

93 PG0 CHGON Output Ni-MH Battery charge ON output

94 PG1 JPNP Input Kana conversion/Kana input existencel nonexistence discrimination

95 PG2 _KHOLD Input Unit key hold switch input

96 PG3 LDON Output P.U. laser ON/OFF control output

97 PG4 OPICGA Output P.U. detection sensitivity switching output

98 Vcc VDD — Positive power supply

99 P10 DCNT Output Mechanism driver enable output

100 P11 HDON Output Recording head current control output

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (2/3)Pin No. FunctionPort Name Terminal Name Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Page 37: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 37 –

MD-SR50H/50W/60E/60W

52 EXPORT0 LDCNT1 Output Recording head raising-lowering control output 1 See the separate table *3.

53 EXPORT1 LDCNT2 Output Recording head raising-lowering control output 2 See the separate table *3.

54 EXPORT2 — Output Not used. (Open)

55 EXPORT3 EMPH1 Output Audio emphasis control output 1 See the separate table *2.

56 EXPORT4 — Output Not used. (Open)

57 EXPORT5 OPTCNT Output Optical digital input circuit control 'H': Circuit operation ON

58 EXPORT6 DAPON Output D/A converter operation control output 'H': Operation ON

59 EXPORT7 ADPON Output A/D converter operation control output 'H': Operation ON

System LSI expansion output port (6th generation: LR37811)Pin No. FunctionPort Name Terminal Name Input/Output Remarks

H H Normal mode

H L No adjustment mode

L H Test mode

L L (Settings prohibited)

TEST1 Details

*1: List of TEST port settings

H H fs=32K: 'ON'

H L fs=48K: 'ON'

L H OFF

L L fs=44.1K: 'ON'

EMPH1 EMPH0 Details

*2: List of EMPH port settings

H H Brake

H L Drive UP

L H Drive DOWN

L L Output OFF

LDCNT1 LDCNT0 Details

*3: List of LDCNT port settingsTEST0

IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (3/3)

Page 38: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 38 –

MD-SR50H/50W/60E/60W

— M E M O —

Page 39: MD-SR50H/50W/60E/60W SERVICE MANUAL

– 39 –

MD-SR50H/50W/60E/60W

PARTS GUIDE

NOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for maintaining the safety and performance of the set.

MODEL MD-SR50H(BL)MD-SR50H(S)MD-SR50H(YR)MD-SR50W(BL)MD-SR50W(S)MD-SR60E(GJ)MD-SR60W(S)

“HOW TO ORDER REPLACEMENT PARTS”To have your order filled promptly and correctly, please furnish thefollowing information.

1. MODEL NUMBER 2. REF. No.3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

For U.S.A. onlyContact your nearest SHARP Parts Distributor to order.

For location of SHARP Parts Distributor,Please call Toll-Free;1-800-BE-SHARP

Explanation of capacitors/resistors parts codesCapacitorsVCC ....................... Ceramic typeVCK ........................ Ceramic typeVCT ........................ Semiconductor typeVC • • MF ............... Cylindrical type (without lead wire)VC • • MN ............... Cylindrical type (without lead wire)VC • • TV ................ Square type (without lead wire)VC • • TQ ............... Square type (without lead wire)VC • • CY ............... Square type (without lead wire)VC • • CZ ............... Square type (without lead wire)VC • • • • • • • • • J .. The 13th character represents capacity difference.

("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%, "C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)

If there are no indications for the electrolytic capacitors, error is ±20%.

ResistorsVRD ....................... Carbon-film typeVRS........................ Carbon-film typeVRN ....................... Metal-film typeVR • • MF ............... Cylindrical type (without lead wire)VR • • MN............... Cylindrical type (without lead wire)VR • • TV ................ Square type (without lead wire)VR • • TQ ............... Square type (without lead wire)VR • • CY ............... Square type (without lead wire)VR • • CZ ............... Square type (without lead wire)VR • • • • • • • • • J .. The 13th character represents error.

("J" ±5%, "F" ±1%, "D" ±0.5%.)

If there are no indications for other parts, the resistors are ±5%carbon-film type.

Page 40: MD-SR50H/50W/60E/60W SERVICE MANUAL

PRICERANK DESCRIPTIONNO. PARTS CODE NO. PARTS CODE PRICE

RANK DESCRIPTION

MD-SR50H/50W/60E/60W

– 1 –

INTEGRATED CIRCUITS

IC101 VHIIR3R55//-1 J AQ RF Signal Processor,IR3R55IC201 VHILR37811/-1 J BB ENDEC/SERVO/ATRAC,

LR37811IC202 RH-IX2567AFZZ J BA 4M D-RAM,IX2567AFIC203 VHI62FP2002-1 J AE 2V Regulator,62FP2002IC251 VSFTD2017++-1 J AC N-ch MOS FET,FTD2017IC253 VHIRN4904//-1 J AD Digital Transistor,RN4904IC255 VHINJM022V/-1 J AG OP AMP,NJM022VIC256 VSRN4911+++-1 J AD Digital Transistor,RN4911IC257 VHIS80808LN-1 J AE Reset,S80808LNIC258,259 VHIHN1C01FU-1 J AD Transistor,HN1C01FUIC260 VHIRN4904//-1 J AD Digital Transistor,RN4904IC351 VHI74ACT02T-1 J AE NOR Gate,74ACT02TIC353 VHIFTD2005/-1 J AG N-ch MOS FET,FTD2005IC354 VHICPH5608/-1 J AH N-ch MOS FET,CPH5608IC401 RH-IX0341AWZZ J System Microcomputer,

IX0341AWIC402 VHI58X2402T-1 J AF EEPROM,58X2402TIC431 VHIS80820LN-1 J AD Reset,S80820LNIC501 VHIAK4550VT-1 J AV AD/DA Converter,AK4550VTIC601 VHILV8017W+-1 J AT 4-CH PWM Driver,LV8017WIC621 VHIRN4904//-1 J AD Digital Transistor,RN4904IC651 VHILB1930M/-1 J AH Motor Driver,LB1930MIC701 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54NIC703 VHIIR3R59N/-1 J AN Audio Amp.,IR3R59NIC771 VHI62GR2522-1 J AG 2.5V Regulator,62GR2522IC801 VHI62RP2002-1 J AF 2.0V Regulator,62RP2002IC802 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FUIC803 VHIS80819LN-1 J AE Reset IC,S-80819LNIC809 VHIRN4904//-1 J AD Digital Transistor,RN4904IC821 VHICPH3403/-1 J AE N-ch MOS FET,CPH3403IC822 VHIIR3M14N/-1 J AK DC/DC Converter,IR3M14NIC841 VHI6372C281-1 J AH 2.8V UP Converter,6372C281IC842 VHIXC62HS02-1 J AE 2.35V Regulator,XC62HS02IC851 VHICPH3403/-1 J AE N-ch MOS FET,CPH3403IC852 VHIIR3M14N/-1 J AK DC/DC Converter,IR3M14NIC871 VHITC7S86FU-1 J AE Exclusive or Gate, TC7S86FUIC873 VHI62GR4522-1 J AG 4.5V Regulator,62GR4522IC892 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FUIC901 VHILB1971V+-1 J AR Spindle Motor Driver,LB1971V

TRANSISTORS

Q101 VS2SA17457/-1 J AB Silicon,PNP,2SA17457Q250 VS2SA17457/-1 J AB Silicon,PNP,2SA17457Q251 VS2SD1819AS-1 J AC Silicon,NPN,2SD1819 ASQ257 VS2SA1832GR-1 J AC Silicon,PNP,2SA1832 GRQ461 VS2SD1819AS-1 J AC Silicon,NPN,2SD1819 ASQ711 VSRN1444A//-1 J AC Digital,NPN,RN1444 AQ721 VS2SD1979S+-1 J AC Silicon,NPN,2SD1979 SQ801 VS2SJ520TL+-1 J AM FET,2SJ520 TL (P-ch)Q803 VSUN5213+++-1 J AC Digital,NPN,UN5213Q891 VS2SA1873GR-1 J AC Silicon,PNP,2SA1873 GRQ901 VSUN5210+++-1 J AC Digital,NPN,UN5210

DIODES

D251 VHD1SS400//-1 J AB Silicon,1SS400D281 VHD1SS400//-1 J AB Silicon,1SS400D351 VHDSBE803//-1 J AD Silicon,SBE803D431 VHDHSB2838+-1 J AC Silicon,HSB2838D461 VHDRB731U//-1 J AC Silicon,RB731UD492 VHEMA8075M/-1 J AC Zener,MA8075MD494~496 VHEMA8075M/-1 J AC Zener,MA8075MD622 VHEMA8075M/-1 J AC Zener,MA8075MD651 VHDF10J2E//-1 J AC Schottky,F10J2ED801 VHDF05J2L//-1 J AC Schottky,F05J2LD802 VHEMA8051M/-1 J Zener,MA8051MD803 VHDRB520S30-1 J AC Schottky,RB520S30D821 VHDD1FH3+++-1 J AE Schottky,D1FH3D822,823 VHDF10J2E//-1 J AC Schottky,F10J2ED831,832 VHDHRB0103B-1 J AC Schottky,HRB0103BD841 VHDF10J2E//-1 J AC Schottky,F10J2ED842 VHDHRB0103B-1 J AC Schottky,HRB0103BD851 VHDD1FH3+++-1 J AE Schottky,D1FH3D861,862 VHDF10J2E//-1 J AC Schottky,F10J2EPH901(8-2) VHPGP1S93K/-1 J AF Photo Interrupter

COILS

L100 VPBNN100K0000 J AC 10 µHL171 RCILC0356AFZZ J AC 10 µHL491 VRS-TV2AB330J J AA 33 ohms,1/10WL500 RCILC0344AFZZ J AC 47 µH,ChokeL601~604 RCILC0358AFZZ J AC 4.7 µH,ChokeL608~610 RCILC0358AFZZ J AC 4.7 µH,ChokeL702~704 RCILC0353AFZZ J AB Tip Solid Induction,100mAL710 VRS-TV2AB470J J AA 47 ohms,1/10WL771 RCILC0359AFZZ J AC 100 µH,ChokeL800,801 RCORF0017AWZZ J AE Tip ImpederL821 RCILC0005AWZZ J AF 10 µH,ChokeL841 RCILC0358AFZZ J AC 4.7 µH,ChokeL851 RCILC0008AWZZ J 22 µH,ChokeL862 RCILC0359AFZZ J AC 100 µH,ChokeL871 VPBNNR47K0000 J AC 0.47 µH

VIBRATORS

XL201 RCRSC0028AFZZ J AH Crystal,33.868 MHzXL401 RCRM-0201AFZZ J AD Ceramic,4.19 MHz

CAPACITORS

C100 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,TantalumC102,103 VCKYTV1AB105K J AD 1 µF,10VC104 VCKYCY1CB273K J AA 0.027 µF,16VC106 VCKYTV1CB224K J AB 0.22 µF,16VC107 VCKYCY1EB123K J AA 0.012 µF,25VC109 VCKYTV1AB105K J AD 1 µF,10VC110 VCKYTV1CB224K J AB 0.22 µF,16VC111 VCKYCY1HB332K J AA 0.0033 µF,50VC112 VCKYCY1CB333K J AA 0.033 µF,16VC121,122 VCCCCY1HH271J J AA 270 pF (CH),50VC123,124 VCCSCY1HL391J J AA 390 pF,50VC130 VCKYCY1CB104K J AB 0.1 µF,16VC161 VCKYTV1AB105K J AD 1 µF,10VC165 VCKYCY1CB333K J AA 0.033 µF,16VC171,172 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,TantalumC201 VCKYTQ1CB105K J AD 1 µF,16VC202 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,TantalumC203 VCKYCY1CB104K J AB 0.1 µF,16VC204 VCKYTV1CB474K J AC 0.47 µF,16VC205 VCKYCY1CB104K J AB 0.1 µF,16VC206 VCKYTV1AB105K J AD 1 µF,10VC207 VCKYCY1CB104K J AB 0.1 µF,16VC209 VCCCCY1HH220J J AA 22 pF (CH),50VC211,212 VCCCCY1HH5R0C J AA 5 pF (CH),50VC251 VCKYCY1CB104K J AB 0.1 µF,16VC252 VCKYTV1CB104K J AA 0.1 µF,16VC253~255 VCKYCY1CB104K J AB 0.1 µF,16VC259 VCKYCY1CB104K J AB 0.1 µF,16VC291 VCKYTV1AB105K J AD 1 µF,10VC351 VCCCCY1HH270J J AA 27 pF (CH),50VC353 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,TantalumC354 VCKYCY1CB104K J AB 0.1 µF,16VC357 VCKYCY1CB104K J AB 0.1 µF,16VC361 VCKYTV1HB393K J AB 0.039 µF,50VC401 VCKYCY1CB104K J AB 0.1 µF,16VC431 VCKYTV1CB474K J AC 0.47 µF,16VC454 VCKYCY1HB222K J AA 0.0022 µF,50VC481,482 VCKYTQ1CB105K J AD 1 µF,16VC491 VCKYTV1CB104K J AA 0.1 µF,16VC492 VCKYTV1AB105K J AD 1 µF,10VC500 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,TantalumC501,502 VCKYCY1HB222K J AA 0.0022 µF,50VC503 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,TantalumC505,506 VCKYCY1HB102K J AA 0.001 µF,50VC509,510 VCKYTV1CF225Z J AC 2.2 µF,16VC511 VCKYTV1AB105K J AD 1 µF,10VC551 VCKYCY1CB104K J AB 0.1 µF,16VC601~604 VCKYTV1AB105K J AD 1 µF,10VC605 VCKYCY1CB104K J AB 0.1 µF,16VC606 RC-SZ0001AWZZ J AG 22 µF,6.3V,ElectrolyticC608 VCKYTQ1CB105K J AD 1 µF,16VC609,610 VCKYTV1AB105K J AD 1 µF,10VC622 VCKYCY1CB104K J AB 0.1 µF,16VC651 VCKYTV1CF105Z J AB 1 µF,16VC652 VCKYCY1CB104K J AB 0.1 µF,16VC701,702 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,TantalumC703 VCKYCY1EB103K J AA 0.01 µF,25V

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NO. PRICERANK DESCRIPTIONPARTS CODENO. PARTS CODE

PRICERANK DESCRIPTION

MD-SR50H/50W/60E/60W

C704 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,TantalumC711,712 VCCCCY1HH101J J AA 100 pF (CH),50VC713,714 VCKYTV1AB105K J AD 1 µF,10VC715 VCKYCY1CB104K J AB 0.1 µF,16VC721,722 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,TantalumC723,724 VCKYCY1HB102K J AA 0.001 µF,50VC725,726 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,TantalumC731 VCKYCY1CF224Z J AB 0.22 µF,16VC733,734 VCKYCY1CB104K J AB 0.1 µF,16VC753 VCKYTV1CF105Z J AB 1 µF,16VC754 VCKYTV1AB105K J AD 1 µF,10VC758 VCKYTQ1CB105K J AD 1 µF,16VC760 VCKYCY1CB104K J AB 0.1 µF,16VC761,762 VCKYTV1CF225Z J AC 2.2 µF,16VC765,766 VCKYTV1CB224K J AB 0.22 µF,16VC771 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,TantalumC773 VCKYTV1CB224K J AB 0.22 µF,16VC774 VCKYTV1CF105Z J AB 1 µF,16VC801 VCKYTV1AB105K J AD 1 µF,10VC802 VCKYCY1EB103K J AA 0.01 µF,25VC803 VCKYCY1CB104K J AB 0.1 µF,16VC804 VCKYTV1CB104K J AA 0.1 µF,16VC818 VCKYCY1CB104K J AB 0.1 µF,16VC821 VCKYTQ1AB335K J AF 3.3 µF,10VC822 RC-SZ0001AWZZ J AG 22 µF,6.3V,ElectrolyticC823 VCEAPW0GW227M J AD 220 µF,4.0V,ElectrolyticC825 VCKYTQ1CB105K J AD 1 µF,16VC826 VCCCCY1HH101J J AA 100 pF (CH),50VC827 VCCCCY1HH221J J AA 220 pF (CH),50VC828 VCKYTV1AB105K J AD 1 µF,10VC830 VCKYTV1AB105K J AD 1 µF,10VC832~835 VCKYCY1CB104K J AB 0.1 µF,16VC836 VCKYTQ1CB105K J AD 1 µF,16VC837 VCKYTV1AB105K J AD 1 µF,10VC838 VCKYCY1CB104K J AB 0.1 µF,16VC839 VCKYTV1CB334K J AC 0.33 µF,16VC840 VCEAPW0GW227M J AD 220 µF,4.0V,ElectrolyticC841 VCKYTV1AB105K J AD 1 µF,10VC842 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,TantalumC843 VCKYTV1CB224K J AB 0.22 µF,16VC844 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,TantalumC845,846 VCKYCY1CB104K J AB 0.1 µF,16VC847,848 VCKYTV1AB105K J AD 1 µF,10VC849 VCEAPW0GW227M J AD 220 µF,4.0V,ElectrolyticC850 VCKYTV1CB104K J AA 0.1 µF,16VC851 VCKYTQ1AB335K J AF 3.3 µF,10VC852 RC-SZ0001AWZZ J AG 22 µF,6.3V,ElectrolyticC853 VCEAPW0GW227M J AD 220 µF,4.0V,ElectrolyticC856 VCCCCY1HH331J J AA 330 pF (CH),50VC857 VCKYCY1HB561K J AA 560 pF,50VC860 VCKYTV1AB105K J AD 1 µF,10VC862,863 VCKYTV1AB105K J AD 1 µF,10VC868 VCKYTV1CF105Z J AB 1 µF,16VC869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,TantalumC872 VCSATA1AJ106M J AE 10 µF,10V,Electrolytic,TantalumC876 VCKYTV1AB105K J AD 1 µF,10VC901~903 VCKYCY1HB222K J AA 0.0022 µF,50VC904 VCKYTV1CB334K J AC 0.33 µF,16VC905 VCKYCY1HB471K J AA 470 pF,50VC906,907 VCKYCY1CB223K J AA 0.022 µF,16VC908 VCKYCY1CB473K J AA 0.047 µF,16VC910 VCKYCY1CB104K J AB 0.1 µF,16VC911 VCKYTQ1AB335K J AF 3.3 µF,10VC912~914 VCKYCY1HB222K J AA 0.0022 µF,50V

RESISTORS

VRS-CY1JB000J J AA 0 ohm,Jumper,0.8×1.55mm,GreenR101~104 VRS-CY1JB223J J AA 22 kohms,1/16WR105 VRS-CY1JB394J J AA 390 kohms,1/16WR106 VRS-CY1JB563J J AA 56 kohms,1/16WR154 VRS-CY1JB122J J AA 1.2 kohms,1/16WR161 VRS-CY1JB122J J AA 1.2 kohms,1/16WR202 VRS-TV2AB330J J AA 33 ohms,1/10WR204 VRS-CY1JB102J J AA 1 kohm,1/16WR205 VRS-CY1JB334F J AA 330 kohms,1/16WR206 VRS-CY1JB274F J AA 270 kohms,1/16WR222 VRS-CY1JB105J J AA 1 Mohm,1/16WR250,251 VRS-CY1JB101J J AA 100 ohm,1/16WR252 VRS-CY1JB154D J AA 150 kohms,1/16WR253 VRS-CY1JB393D J AA 39 kohms,1/16WR254 VRS-CY1JB223J J AA 22 kohms,1/16W

R255 VRS-CY1JB472J J AA 4.7 kohms,1/16WR256 VRS-CY1JB563J J AA 56 kohms,1/16WR257 VRS-CY1JB273D J AA 27 kohms,1/16WR261 VRS-CY1JB102J J AA 1 kohm,1/16WR262,263 VRS-CY1JB683D J AA 68 kohms,1/16WR266 VRS-CY1JB563D J AA 56 kohms,1/16WR267 VRS-CY1JB103D J AA 10 kohm,1/16WR269 VRS-CY1JB303D J AA 30 kohms,1/16WR270,271 VRS-CY1JB683D J AA 68 kohms,1/16WR272 VRS-CY1JB101J J AA 100 ohm,1/16WR277 VRS-CY1JB393J J AA 39 kohms,1/16WR279 VRS-CY1JB101J J AA 100 ohm,1/16WR281 VRS-CY1JB223J J AA 22 kohms,1/16WR282 VRS-CY1JB105J J AA 1 Mohm,1/16WR283 VRS-CY1JB104J J AA 100 kohm,1/16WR284 VRS-CY1JB394J J AA 390 kohms,1/16WR285 VRS-CY1JB104J J AA 100 kohm,1/16WR286 VRS-CY1JB222J J AA 2.2 kohms,1/16WR287 VRS-CY1JB564J J AA 560 kohms,1/16WR288 VRS-CY1JB473J J AA 47 kohms,1/16WR291 VRS-CY1JB101J J AA 100 ohm,1/16WR292 VRS-CY1JB104J J AA 100 kohm,1/16WR293 VRS-CY1JB222J J AA 2.2 kohms,1/16WR294~296 VRS-CY1JB104J J AA 100 kohm,1/16WR351 VRS-TV2AB4R7J J AA 4.7 ohms,1/10WR361 VRS-TQ2BB150J J AA 15 ohms,1/8WR402 VRS-CY1JB104J J AA 100 kohm,1/16WR403 VRS-CY1JB102J J AA 1 kohm,1/16WR404 VRS-CY1JB104J J AA 100 kohm,1/16WR405 VRS-CY1JB103J J AA 10 kohm,1/16WR406 VRS-CY1JB104J J AA 100 kohm,1/16WR407 VRS-CY1JB103J J AA 10 kohm,1/16WR408 VRS-CY1JB104J J AA 100 kohm,1/16WR411 VRS-CY1JB102J J AA 1 kohm,1/16WR412 VRS-CY1JB153J J AA 15 kohms,1/16WR413~415 VRS-CY1JB102J J AA 1 kohm,1/16WR416 VRS-CY1JB104J J AA 100 kohm,1/16WR422 VRS-CY1JB104J J AA 100 kohm,1/16WR423 VRS-CY1JB223F J AA 22 kohms,1/16WR424,425 VRS-CY1JB223J J AA 22 kohms,1/16WR431 VRS-CY1JB334J J AA 330 kohms,1/16WR443 VRS-CY1JB123J J AA 12 kohms,1/16WR451 VRS-CY1JB562J J AA 5.6 kohms,1/16WR452 VRS-CY1JB822J J AA 8.2 kohms,1/16WR453 VRS-CY1JB183J J AA 18 kohms,1/16WR454 VRS-CY1JB563J J AA 56 kohms,1/16WR455 VRS-CY1JB562J J AA 5.6 kohms,1/16WR456 VRS-CY1JB822J J AA 8.2 kohms,1/16WR457 VRS-CY1JB183J J AA 18 kohms,1/16WR458 VRS-CY1JB563J J AA 56 kohms,1/16WR460 VRS-CY1JB683J J AA 68 kohms,1/16WR461 VRS-CY1JB104J J AA 100 kohm,1/16WR462 VRS-CY1JB273J J AA 27 kohms,1/16WR463~465 VRS-CY1JB104J J AA 100 kohm,1/16WR466 VRS-CY1JB564J J AA 560 kohms,1/16WR492 VRS-CY1JB102J J AA 1 kohm,1/16WR501,502 VRS-CY1JB471J J AA 470 ohms,1/16WR600 VRS-CY1JB560J J AA 56 ohms,1/16WR601 VRS-CY1JB563J J AA 56 kohms,1/16WR621 VRS-CY1JB104J J AA 100 kohm,1/16WR622 VRS-CY1JB102J J AA 1 kohm,1/16WR701 VRS-CY1JB101J J AA 100 ohm,1/16WR702 VRS-CY1JB220J J AA 22 ohms,1/16WR703 VRS-CY1JB104J J AA 100 kohm,1/16WR711,712 VRS-CY1JB562J J AA 5.6 kohms,1/16WR713,714 VRS-CY1JB103J J AA 10 kohm,1/16WR715,716 VRS-CY1JB104J J AA 100 kohm,1/16WR717,718 VRS-CY1JB102J J AA 1 kohm,1/16WR719,720 VRS-CY1JB822J J AA 8.2 kohms,1/16WR723,724 VRS-CY1JB682J J AA 6.8 kohms,1/16WR725 VRS-CY1JB101J J AA 100 ohm,1/16WR726 VRS-CY1JB393J J AA 39 kohms,1/16WR727 VRS-CY1JB822J J AA 8.2 kohms,1/16WR728 VRS-CY1JB102J J AA 1 kohm,1/16WR729,730 VRS-CY1JB272J J AA 2.7 kohms,1/16WR754 VRS-CY1JB154J J AA 150 kohms,1/16WR757 VRS-CY1JB222J J AA 2.2 kohms,1/16WR758 VRS-CY1JB101J J AA 100 ohm,1/16WR761 VRS-CY1JB224J J AA 220 kohms,1/16WR762 VRS-CY1JB913J J AA 91 kohms,1/16WR765,766 VRS-CY1JB150J J AB 15 ohms,1/16WR767,768 VRS-CY1JB4R7J J AA 4.7 ohms,1/16W

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PRICERANK DESCRIPTIONNO. PARTS CODE NO. PARTS CODE PRICE

RANK DESCRIPTION

MD-SR50H/50W/60E/60W

R801 VHHSMDM110V-1 J AK Conductive Resin SwitchR802 VRS-CY1JB561J J AA 560 ohms,1/16WR803 VRS-CY1JB122J J AA 1.2 kohms,1/16WR806 VRS-CY1JB563J J AA 56 kohms,1/16WR807 VRS-CY1JB223J J AA 22 kohms,1/16WR808 VRS-TV2AB1R0F J AB 1 ohm,1/10WR809 VRS-TV2AB1R0J J AA 1 ohm,1/10WR810 VRS-TV2AB1R0F J AB 1 ohm,1/10WR811 VRS-TV2AB1R0J J AA 1 ohm,1/10WR812~815 VRS-CY1JB103F J AA 10 kohm,1/16WR816 VRS-CY1JB152J J AA 1.5 kohms,1/16WR818 VRS-CY1JB335J J AA 3.3 Mohms,1/16WR819 VRS-CY1JB223J J AA 22 kohms,1/16WR823 VRS-CY1JB274J J AA 270 kohms,1/16WR824 VRS-CY1JB103J J AA 10 kohm,1/16WR825 VRS-CY1JB304F J AF 300 kohms,1/16WR826 VRS-CY1JB106J J AA 10 Mohm,1/16WR827 VRS-CY1JB224F J AA 220 kohms,1/16WR831,832 VRS-CY1JB184F J AA 180 kohms,1/16WR833 VRS-CY1JB470J J AA 47 ohms,1/16WR841 VRS-CY1JB104J J AA 100 kohm,1/16WR844 VRS-CY1JB470J J AA 47 ohms,1/16WR850 VRS-CY1JB104J J AA 100 kohm,1/16WR853 VRS-CY1JB274J J AA 270 kohms,1/16WR854 VRS-CY1JB103J J AA 10 kohm,1/16WR855 VRS-CY1JB394F J AA 390 kohms,1/16WR856 VRS-CY1JB106J J AA 10 Mohm,1/16WR857 VRS-CY1JB334F J AA 330 kohms,1/16WR871 VRS-CY1JB103J J AA 10 kohm,1/16WR901~904 VRS-CY1JB1R0J J AA 1 ohm,1/16WR906 VRS-CY1JB155J J AA 1.5 Mohms,1/16WR908 VRS-CY1JB223J J AA 22 kohms,1/16WR920 VRS-CY1JB104J J AA 100 kohm,1/16WR921 VRS-CY1JB331J J AA 330 ohms,1/16WR922 VRS-CY1JB104J J AA 100 kohm,1/16W

OTHER CIRCUITRY PARTS

CN101 QCNCW801XAFZZ J AH Socket,22PinCN451 QCNCW804NAFZZ J AE Socket,13PinCN482 QCNCW804JAFZZ J AE Socket,9PinCN601 QCNCW716RAFZZ J AF Socket,16Pin

! F841 QFS-L401AAFNZ J Sguare Tip Type Fuse,0.4A,DC 60V

J701 VHLGP1FB95R-1 J AP Jack,OPTICAL/LINE INJ702 QJAKM0014AWZZ J AF Jack,Mic INJ703 QJAKM0015AWZZ J AL Jack,Remote Control/Head-

phonesJ801 QJAKC0007AWZZ J AF Jack,DC INM901 RMOTV0028AWZZ J Motor Ass’y [Spindle]M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift]SW401 QSW-M0001AWZZ J AD Switch,Push Type [EJECT]SW402 QSW-S0948AFZZ J AC Switch,Slide Type [HOLD]SW403 QSW-M0001AWZZ J AD Switch,Push Type

[LID DETECTION]SW902(8-3) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]

MECHANICAL PARTS

1 NGERH0597AFZZ J AC Wheel,Drive2 NSFTD0334AFZZ J AD Screw,Drive3 MARMM0170AFM1 J AK Bracket,Magnetic Field Ass’y5 LHLDX3141AFM1 J AP Cartridge Holder Ass’y6 LCHSM0097AWM1 J Main Chassis Ass’y7 PCUSG0599AFZZ J AB Cushion8 QPWBH0004AWM1 J Magnetic Flexible PWB Ass’y8- 1 ———— — Magnetic Flexible PWB

(Not Replacement Item)8- 2(PH901) VHPGP1S93K/-1 J AF Photo Interrupter8- 3(SW902) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]9 MLEVF2641AFZZ J Lever,Eject11 MSPRP0923AFZZ J Spring,Thrust Plate12 MSPRP0925AFZZ J Spring,Drive Screw13 NGERH0603AFZZ J AE Gear,Drive14 LANGF1610AFZZ J AC Bracket,Cancel

! 15 RCTRH8194AFZZ J BM Optical Pickup Unit16 MSPRP0922AFFJ J AD Spring,Drive Grip17 NSFTM0292AFFW J AC Shaft,Guide18 MSPRT1625AFFJ J AD Spring,Eject Lever19 MLEVF2637AFM1 J AH Lift Working Lever Ass’y20 MLEVF2640AFZZ J Lever,Lift

21 RCILH0002AWZZ J Magnetic Head22 PCOVP1339AFZZ J AD Cover,Mechanism23 QPWBH0338AFZZ J AH Magnetic Head Flexible PWB24 MLEVF2639AFFW J AD Lever,Lift Joint25 MLEVF2638AFFW J AD Lever,Block26 MSPRD1362AFFJ J AD Spring,Lift Lever501 LX-BZ0800AFZZ J AA Screw,ø1.4×2.5mm502 LX-BZ0804AFFF J AA Screw,ø1.4×2.2mm503 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm504 LX-JZ0148AFZZ J AA Screw,ø1.7×3mm505 LX-JZ0154AFZZ J AA Screw,ø1.4×2.8mm506 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.2mm507 XSPSN14P01500 J AA Screw,ø1.7×2.5mm508 XWSSD14-05000 J AA Washer,ø1.4×0.5mm509 LX-BZ0974AFZZ J AB Screw,ø1.4×5.5mm510 LX-WZ9296AFZZ J AA Washer,ø1.5×ø3.5×0.25mm511 LX-BZ0991AFZZ J AB Screw,ø1.2×1.6mm512 LX-BZ1001AFZZ J Screw,ø1.4×2.3mmM901 RMOTV0028AWZZ J Motor Ass’y [Spindle]M902 RMOTV0511AFZZ J AT Motor Ass’y [Sled]M903 RMOTV0512AFM1 J AR Motor Ass’y [Lift]

CABINET PARTS

201 GFTAT3008AWM1 J AW Top Cabinet [SR50H-S/SR50W-S]

201 GFTAT3008AWM2 J AW Top Cabinet[SR50H-BL/SR50W-BL]

201 GFTAT3008AWM3 J AW Top Cabinet [SR50H-YR]201 GFTAT3009AWM1 J Top Cabinet [SR60W]201 GFTAT3009AWM2 J AM Top Cabinet [SR60E]202 GCABA1194AWSA J AH Center Cabinet

[Except for SR50H-YR/SR60E]202 GCABA1194AWSB J AH Center Cabinet

[SR50H-YR/SR60E]203 GFTAU3019AWSA J AS Bottom Cabinet [SR50H-S]203 GFTAU3023AWSA J AS Bottom Cabinet [SR50H-BL]203 GFTAU3024AWSA J AS Bottom Cabinet [SR50H-YR]203 GFTAU3025AWSA J AS Bottom Cabinet [SR50W-S]203 GFTAU3026AWSA J Bottom Cabinet [SR50W-BL]203 GFTAU3027AWSA J Bottom Cabinet [SR60W]203 GFTAU3028AWSA J AS Bottom Cabinet [SR60E]204 HDECQ0527AWSA J AM Decoration Plate [Except for

SR50H-YR/SR50H-BL/SR50W-BL/SR60E]

204 HDECQ0527AWSB J AM Decoration Plate[SR50H-BL/SR50W-BL]

204 HDECQ0527AWSC J AM Decoration Plate [SR60E]204 HDECQ0527AWSD J AM Decoration Plate [SR50H-YR]205 PSHET0021AWZZ J AD Insulation Sheet,Bottom Cabinet206 PSHEF0019AWZZ J AB Felt207 GDORB0002AWSA J AF Cover,Battery

[Except for SR50H-YR/SR60E]207 GDORB0002AWSB J AF Cover,Battery

[SR50H-YR/SR60E]208 JKNBZ0666AWSA J AF Knob,Eject209 JKNBZ0625AWSA J AD Knob,Hold210 TCAUS0044AWZZ J AB Label A,Class 3B211 TCAUS0043AWZZ J AC Label B,Class 3B212 LANGT0065AWFW J AG Bracket,Display213 RUNTK0006AWZZ J AQ Key Flexible PWB Ass’y214 RUNTZ0016AWZZ J BB LCD Ass’y215 JKNBZ0667AWSA J AK Button,Operation216 PSHEZ0066AWZZ J AB Sheet,LCD C217 PSHEZ0069AWZZ J Sheet,Key Flexible PWB218 PCUSZ0016AWZZ J AB Cushion,Display Bracket219 PSHET0020AWZZ J AB Sheet,Jack220 PCUSZ0015AWZZ J AB Cushion,Mechanism Front221 PSHEZ0068AWZZ J Spacer,Mechanism222 PCUSZ0014AWZZ J AB Cushion,Mechanism Right223 PCUSZ0022AWZZ J Cushion,Mechanism224 PCUSG0051AWZZ J AC Rubber,Preventive Vibration B225 PCUSG0050AWZZ J AC Rubber,Preventive Vibration A226 MSPRP0033AWFW J AC Spring B,Cartridge227 PGIDM0030AW00 J AC Guide,Battery Terminal228 PCOVW1008AW01 J Cover,Battery Terminal,+229 QTANB9020AWFQ J AD Terminal,Battery +230 LANGZ0029AWFW J AE Bracket,Side231 PSHEZ0051AWZZ J AC Sheet,Operation Button A232 PSHEZ0052AWZZ J AC Sheet,Operation Button B233 PCUSS0047AWZZ J AB Cushion,LCD B234 PCUSS0046AWZZ J AB Cushion,LCD A

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NO. PRICERANK DESCRIPTIONPARTS CODENO. PARTS CODE

PRICERANK DESCRIPTION

MD-SR50H/50W/60E/60W

236 MSPRP0032AWFW J AB Spring A,Cartridge237 LHLDZ3012AWM1 J AF Main Frame Ass’y240 MSPRP0034AWFW J AB Spring C,Cartridge241 PCUSZ0021AWZZ J Cushion,Display Bracket242 PSPAP0002AW00 J Spacer,Top Cabinet601 LX-BZ1008AFFC J AB Screw,ø1.4×2mm602 LX-BZ0048AWFN J Screw,ø1.4×2.5mm603 LX-CZ0107AFFF J AA Screw,ø1.2×2.5mm605 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm

ACCESSORIES/PACKING PARTS

1 RPHOH0005AWZZ J AX Earphones[SR60W/SR60E Only]

2 RPHOH0001AWZZ J AW Headphones[SR50H/SR50W Only]

3 RRMCW0002AWZZ J Remote Control[SR60W/SR60E Only]

4 UBAGC0003AWZZ J Battery Case[SR60W/SR60E Only]

5 TINSE0295AWZZ J Quick Guide [SR60E]5 TINSE0296AWZZ J Quick Guide [SR50H for U.K.]6 SPAKZ0599AWZZ J Pad,AC Adapter [SR50H/SR60E]6 SPAKZ0600AWZZ J Pad,AC Adapter [SR50W Except

for Australia/New Zealand]6 SPAKZ0601AWZZ J Pad,AC Adapter [SR50W for

Australia/New Zealand/SR60W]! 7 RADPA5402AFZZ J BF AC Adapter [SR50W Except for

Australia/New Zealand]! 7 RADPA6435AFZZ J BG AC Adapter [SR50W for

Australia/New Zealand]! 7 RADPA7045AWZZ J AX AC Adapter [SR50H for Europe]! 7 RADPA8046AWZZ J AC Adapter

[SR60E/SR50H for U.K.]! 7 RADPA8493AFZZ J BH AC Adapter [SR60W]

8 QCNWG0382AFZZ J AK Connecting Cord,RCA Type9 SPAKA0237AWZZ J Packing Add.10 TINSE0289AWZZ J Operation Manual [SR60E]10 TINSE0290AWZZ J Operation Manual

[SR50H for U.K.]10 TINSE0291AWZZ J Operation Manual [SR50W for

Australia/New Zealand]10 TINSZ0519AWZZ J Operation Manual [SR60W]10 TINSZ0520AWZZ J Operation Manual

[SR50H for Europe]10 TINSZ0521AWZZ J Operation Manual

[SR50W Except for Australia/New Zealand]

11 SPAKZ0490AWZZ J AC Operation Manual Spacer[SR60W/SR60E/SR50H forU.K. Only]

12 UBAGC0006AWSA J Carrying Case13 SPAKC0944AWZZ J Packing Case [SR60W]13 SPAKC0945AWZZ J Packing Case [SR60E]13 SPAKC0948AWZZ J Packing Case

[SR50H-S for Europe]13 SPAKC0949AWZZ J Packing Case

[SR50H-BL for Europe]13 SPAKC0950AWZZ J Packing Case [SR50H-YR]13 SPAKC0951AWZZ J Packing Case [SR50W-S]13 SPAKC0952AWZZ J Packing Case [SR50W-BL]13 SPAKC0970AWZZ J Packing Case

[SR50H-S for U.K.]13 SPAKC0971AWZZ J Packing Case

[SR50H-BL for U.K.]15 TLABE0354AWZZ J Label,Bar Code [SR60E]15 TLABE0355AWZZ J Label,Bar Code [SR50H-S]15 TLABE0356AWZZ J Label,Bar Code [SR50H-BL]15 TLABE0357AWZZ J Label,Bar Code [SR50H-YR]15 TLABE0358AWZZ J Label,Bar Code [SR50W-S for

Australia/New Zealand]15 TLABE0359AWZZ J Label,Bar Code [SR50W-BL for

Australia/New Zealand]16 TCADS0003AWZZ J Service Card

[SR50H for U.K./SR60E Only]17 92LG-CARD1266E J AB Guarantee Card [SR50W for

Australia/New Zealand Only]18 QCNWG0422AFZZ J AQ Connecting Cord,Optical Type

[SR60W/SR60E Only]19 SSAKH0037AWZZ J Bag,SET20 SPAKZ0624AWZZ J Pad,Protection

P.W.B. ASSEMBLY (Not Replacement Item)

PWB-A 92LPWB3355MDSS J — Main

OTHER SERVICE PARTS

UDSKM0001AFZZ J AZ Recording Mini Disc88GMMD-110 J BV High Reflection Disc MMD-110

(TEAC Test MD)88GMMD-212 J BU Low Reflection Disc MMD-212

(TEAC Test MD)88GMMD-213A J BT Low Reflection Disc MMD-213A

(TEAC Test MD)

– 4 –

Page 44: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

A

B

C

D

E

F

G

H

1 2 3 4 5 6

Figure 5 MD MECHANISM EXPLODED VIEW– 5 –

M903

M902

M901

503x2

505x3

508x2502x2

3

501

21

23

5118-3

(SW902)

8-1

8

8-2(PH901)

504503

50412 19

11

1

2

1617

15

509510

24

50613

503

14

5

22

269

18

20

25

6

7

512

507

Page 45: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

A

B

C

D

E

F

G

H

1 2 3 4 5 6

Figure 6 CABINET EXPLODED VIEW– 6 –

204

242

MD MECHANISM

210

205

203

214

234 233

213

215

202

237

601x2

601x2

216

217

603

602211

212

218236

601x2

601

601

601x2

209

PWB-A

208

220

220

221

219

229

223

222

207

224

225x2

240

226

201

241

241

235

605x4

228

227231

232

206

230

601

Page 46: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

PACKING METHOD (MD-SR50H FOR U.K./SR60E ONLY)

Setting position of switches and knobs

UNIT HOLD OFF

Remote Control HOLD CANCEL

10

5

16 18(MD-SR60E Only)

11

20

12

19

6

7

1(MD-SR60E Only)

2

4

8

3(MD-SR60E Only)

9

13

15

BATTERY

1 RPHOH0005AWZZ Earphones [SR60E Only]2 RPHOH0001AWZZ Headphones [SR50H for U.K.]3 RRMCW0002AWZZ Remote Control [SR60E Only]4 UBAGC0003AWZZ Battery Case [SR60E]5 TINSE0295AWZZ Quick Guide [SR60E]5 TINSE0296AWZZ Quick Guide [SR50H for U.K.]6 SPAKZ0599AWZZ Pad, AC Adapter7 RADPA8046AWZZ AC Adapter8 QCNWG0382AFZZ Connecting Cord, RCA Type9 SPAKA0237AWZZ Packing Add.10 TINSE0289AWZZ Operation Manual [SR60E]

10 TINSE0290AWZZ Operation Manual[SR50H for U.K.]

11 SPAKZ0490AWZZ Operation Manual Spacer12 UBAGC0006AWSA Carrying Case13 SPAKC0945AWZZ Packing Case [SR60E]13 SPAKC0970AWZZ Packing Case

[SR50H-S for U.K.]13 SPAKC0971AWZZ Packing Case

[SR50H-BL for U.K.]15 TLABE0354AWZZ Label, Bar Code [SR60E]15 TLABE0355AWZZ Label, Bar Code [SR50H-S]15 TLABE0356AWZZ Label, Bar Code [SR50H-BL]16 TCADS0003AWZZ Service Card18 QCNWG0422AFZZ Conneting Cord, Optical Type

[SR60E Only]19 SSAKH0037AWZZ Bag, SET20 SPAKZ0624AWZZ Pad, Protection

– 7 –

Page 47: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

— M E M O —

– 8 –

Page 48: MD-SR50H/50W/60E/60W SERVICE MANUAL

MD-SR50H/50W/60E/60W

COPYRIGHT 2000 BY SHARP CORPORATION

ALL RIGHTS RESERVED.

No part of this publication may be reproduced,stored in a retrieval system, or transmitted inany from or by any means, electronic, mechanical,photocopying, recording, or otherwise, withoutprior written permission of the publisher.

A0002-4543NS•HA•M

SG • SK • SCA • SCNZ • EX

SHARP CORPORATIONCommunication Systems GroupQuality & Reliability Control CenterHigashihiroshima, Hiroshima 739-0192, Japan

Printed in Japan

©