Stereo Integrated Amplifier

SPECIFICATIONS (DIN 45 50O)

20 Hz-20 kHZ continuous power output both channels driven 2 x 85 W (8 ~)

1 kHZ continuous power output both channels driven crHD: I '/.) 2 x 95 W (8 ~)

2 x 135 W (4 ~) 63 Hz- 12.5 kHZ continuous power output both channels driven (0.7'/.) 2 x 85 W (8 ~)

2 x 120 W (4 ~) Total harmonic distortion (Power Amp Direct input) rated power at 20 Hz-2O kHZ 0.005 '/. (8 ~) rated power at I kHZ 0.0009 '/. (8 ~)

0.002 '/. (4 ~) half power at 20 Hz-20 kHZ 0.005 '/. (8 ~) half power at I kHZ 0.0009 '/. (8 ~)

0.002 '/. (4 ~) Intermodulation distortion rated power at 50 Hz: 7 kHz= 4:1, SMPTE, 8 ~ 0.007 '/. Residual hum and noise 0.2 mV Damping factor 60 (8 ~), 30 (4 ~) Headphones output level and impedance 650 mV1330 ~ Load impedance

4 ~-16 ~ A or B A and B 8 ~-16 ~

Input sensitivity and impedance PHONO MM 2.5 mV/47 k~ PHONO MC 1 70 pV/220 ~ TUNER, CD, AUX, TAPE 1, TAPE 21DAT 1 50 mV/22 k~ POWER AMP DIRECT 1 V/18 k~

Phono maximum input voltage (lHF '66, I kHz, RMS) MM 170 mV MC 12 mV

Sl N rated power (4 ~) PHONO MM 79 dB (lHF '66: 86 dB) PHONO MC 67 dB (IHF '66: 68 dB, S=250 ~V) TUNER, CD, AUX, TAPE 1, TAPE 21DAT

97 dB (lHF '66: 100 dB) POWER AMP DIRECT 106 dB (lHF '66: 1 1 5 dB) - 26 dB power (4 ~) PHONO MM 77 dB PHONO MC 67 dB TUNER, CD, AUX, TAPE 1, TAPE 21DAT 84 dB

ORDER NO. AD90051 03C2

Ampnfier

-ceto* (K) Black Type

Area

50 mW power (4 ~) PHONO MM 75 dB PHONO MC 67 dB TUNER, CD, AUX. TAPE 1. TAPE 21DAT 78 dB Frequency response PHONO MM RIAA standard curve :!:0.8 dB (30 Hz- 1 5 kHz) TUNER. CD. AUX, TAPE 1. TAPE 21DAT

3 Hz-100 kHZ (+0, -3 dB) +0 dB, -0.2 dB (20 Hz-20 kHz)

POWER AMP DIRECT 2 Hz-120 kHZ (+0, -3 dB) +0 dB, -0.2 dB (20 Hz-20 kHz)

Tone controls 50 Hz, +10 dB, -10 dB BASS 20 kHz, +10 dB, -10 dB TREBLE

50 Hz, +9 dB Loudness control (volume at -30 dB) Output voltage TAPE 1. TAPE 21DAT. REC OUT 1 50 mV

~:1 dB Channel balance. AUX 25O Hz-6,300 Hz 50 dB Channel separation. AUX I kHZ

I GEN ERAL Power consumption Power supply For Great Britain : For Others: Dimensions (W x H x D)

Weight

640 W

AC 50 Hz/60 Hz, 240 V AC 50 Hz/60 Hz, 220 V 430 x 158 x 370 mm

(1 6-1 5/1 6" x 6-7/32" x 1 4-9/1 6") 12.3 kg (27.1 Ib.)

Notes: 1. Specitications are subject to change without notice. 2. Weight and dimensions are approximate. 3. Total harmonic distortion is measured by the digital spectrum analyzer.

MatSushita Electric Industrial Co. Ltd Central P.O. Box 288, Osaka 530-91 , Japan

I CONTENTS BEFORE REPAIR AND ADJUSTMENT PROTECTION CIRCUITRY ACCESSORY CONNECTIONS LOCATION OF CONTROLS DISASSEMBLY INSTRUCTIONS . . . . . MEASUREMENTS AND ADJUSTMENTS SCHEMATIC DIAGRAM . . . .

_ Page 2 2 2

3, 4 5

. 6~9 10

11~13

WIRING CONNECTION DIAGRAM PRINTED CIRCUIT BOARDS TERMINAL GUIDE OF IC'S, TRANSISTORS AND DIODES BLOCK DIAGRAM REPLACEMENT PARTS LIST EXPLODED VIEW

Page 14

15~18 18

1 9, 20 . 21 , 22, 25, 26

23, 24

I BEFORE REPAIR AND ADJUSTMENT (1) Turn off the power supply. Using a 10~, 10W resistor, shortcircuit both ends of power suppiy capacitors (C705,C706)in order to discharge the voltage.

(2) Before turning on the power switch cf the unit. A. Connect the voltage controller to the primary side. B. Connect the AC ampere meter to the primary side or connect the DC voltage meter to the ":tB" circuit of the secondary side.

C. Turn the VR of iCQ (VR451 and VR452) to minimum (counterclockwise). D. Atter setting the output to zero of the voltage contoiler,turn on the power switch of the unit. And increase the output of voltage controller gradually. Then, check carefuily whether the current value ct primary side become more than foilowing vaiue or whether the DC voltage of secondary side is increasing slowly.

E. If the value ot current is increasing unusually or the DC voltage is not increasing,lower the output level of voltage contoller immediately.

o The current value of the primary side at no signal. (Confirm the power supply voltage of each area and provided voltage of the unit.)

I PROTECTION CIRCUITRY The protection circuitry of the amplifier may have operated if either of the following conditions is noticed: e No sound is heard when the power is turned on. e Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are "shorted" , or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.

If this occurs, foilow the procedure outlined below: 1.Turn off the power. 2.Determine the cause of the problem and correct it. 3.Turn on the power once again.

Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

I ACCESSORY eAC power supply cord

(SFDAC05E03) (S JAI 93)

1

For [E] and [EG] areas.

For [EB] area only.

-2-

I CONNECTIONS "PHONO" terminals to reduce noise. Remove the pins before connecting a turntable and reinsert the pins if the turntable is later disconnected. Never ebnnect a shorting pin to a "REC OUT" terminal or any terminal other than those above.

Using the shortcircuit pins (included) Shorting pins are inserted into the

Turntable (not included) Tape deck I (not included) Compact disc player (not included)

'Phono input capacitance is about 270 pF for EG area (about I OO pF for other areas).

Make connections to each component in the system by using stereo connection cables (not included).

"PHONO" terminals "CD" terminals Connect a turntable.

(GND) (R) (L)

See "Using the short-circuit pins", above.

Turntable (not included)

(R) (L)(GND)

Connect a compact disc player.

CO,

(R) (L)

Compact disc player (not included)

LINE OUT

(R) (L)

Ground wire (not included)

"TUNER" terminals "AUX" terminals Connect a tuner.

~r~~ #N~

~l (R) (U

Tuner (not included)

OUTPUT

( (L)

Connect a component such as a video disc player (audio only con-nectable), etc. -~F'. ,.

::~~~::.:~' :~ Video disc player (not included)

~l (R) (L)

LINE OUT

(R) (L)

-3-

"TAPE 1" terminals Connect a first tape deck. tAPE ' RSe pLAY QU7 eAeK

~l (R) (L) (R) (L)

Tape deck I (not included)

One pair of speaker systems can be terminals of this unit and one pair to the

connected to "B" terminals.

the i'A't

LINE IN LINEOUT I LOad impedance eWhen only the "A" or only the "B" terminals are used:4-16

(R)(L) (R) (L) ohms When both the "A" and the taneously:8-1 6 ohms

"B" terminals are used slmul

To connect main speaker systems

(A) andlor second (B)

"TAPE 21DAT" terminals Connect a second tape deck or a digital audio tape deck (DAT).

TAPE~lDAT Digital audio tape deck (DAT) RSC PLAY eeT '8AeK (not included) ~1

(- ) (+)

(R) (L) (R) (L)

IN OUT

Main

I LOCATION 1

OF CONTROLS

D POWer switch (power)

E] OperatiOn indicatOrs (amplifier operatiOn monitOr) This indicator illuminates to indicate the operating condition of this unit. voltage control: When the power is switched ON, this indicator illuminates when the unit is in the operation condition. current drive: When the power is switched ON, this indicator illuminates after about 4 seconds when the unit is in the operation condi-tion. If an abnormal condition in the circuitry is detected, such as DC voitage appearing in the output, or a short-circuit of the positive (+) and negative (-) wires from the speaker ter-minals, the protection circuit functions and this indicator does not illuminate.

~] RecOrding output selectOr (rec selector) This selector is used to select the sound source to be recorded by the connected tape deck I and/or tape deck 2 (or DAT).

D phOnO Cartridge SelectOr (phonO SelectOr) This selector should be set to the position which corresponds to the type of cartridge used on the turntable.

B] MOde selectOr (mode) This selector is used to select stereo or monaural operation.

~] LOUdness SWitch (lOUdness) This switch is used when listening to music at a low volume level. Auditory perception of sound in the low frequency range falls off at low volume, but when the switch is set to the "on" position, this deficiency is compensated for, so that the full im-pact of the musical performance can be enjoyed.

f

I

I

I

l

~ POWer amplifier direct sWitch (pOWer amp direct) This switch is used to listen to the sound from a component connected to the "POWER AMP DIRECT" term'nals. When this switch is pressed inward to the "on" position, a superior level of tone quality can be obtained, because the signals from the component connected to the "POWER AMP DIRECT" terminals are sent directly to the volume control and power amp section ot this unit. The mode selector, loudness switch, balance control and tone control circuit are bypassed.

L~l VOlume cOntrOllindicatOr (VOlume) There are two types ot volume scale indications: when the power amplifier direct switch is OFF, and when it is ON (Indicator will illuminate.).

one for one for

~ Input selectOr (input selector) This selector is used to select the sound source to be heard, such as a disc, radio broadcast, etc.

~E] TOne cOntrOl SWitCh (tOne cOntrOl) This switch is used to turn the tone control treble) on or off.

E] Balance This control

circuit (bass,

COntrOl (balance) is used to adjust the left/right volume balance.

~~] Tone controls (bassltreble) The bass control range, and the frequency sound

is used to adjust the reble control is used ange.

low-f requenc y to adjust the

sound high-

~~] Speaker SelectOrs (Speakers) These selectors are used to turn the speaker systems on and off.

~~] Headphones jack (phones)

-5-

DISASSEMBLY INSTRUCTIONS Some chassis components may have sharp edges.

Removal of the cabinet

.~~)o

~~! ~) ~~(~~~~

' Remove the 6 screws (O-O).

Remote Switch Control ler

1. 2.

Cab'net

' ~)O

Removal of the front panel

CN I 02

_oo.

~~~~.~~ "

~ ~2

Remove the 2 connectors (CNI O1 , CNI 02). Remove the remote switch controiler.

Be careful when disassembling and servicing.

. ~o

~~0

Ref. No. 2

Procedure 1->2

Removal of the shield plate (L)1(R) and

Shield Plate(L)

front shield plate.

O ~ Ol

O o e Remove the 9 screws (O-O).

3. 4.

l

o o?

oO

O Shield

Remove the 3 screws (O-O)-Remove the front panel in the direction of the arrow.

Front Panel

Ref. No.

Procedure 1->2~'3~4

Removal of the power switch P.C.B.

l] Q

o

power switch Button

Claw

Power Switch P.C. B.

1 . Remove the 2 screws (O, e)-2. Remove the power switch button by pushing it from behind the front panel.

3. Release the I claw.

l

~] ~ ~,~; ~ ~:~) f O c~~ O

~ O

Removal of the remote switch controller o Remove the 4 claws.

C Iaws t ^)

Remote Switch Controller

~;~:);~e;~;~::~~:s:

Claws Replacing of the remote switch controller 1 . Fully rotate the Recording Selector Control counterclockwise.

2. Push the Switch Slide in the direction of the arrow. Lever

Remote Switch Controller

Rec Selector Knob

o

o

Switch Slide

-6-

-7-

Ref. No. 10 Check of the main P.C.B.

Procedure 1~*2~>10

o~

o

ol 1 . Remove the 8 screws (O-O).

Front panel

~~ ~ ~~ O ~~ ~~;~~

O

3. Remove the3screws ((D-O)-4. Remove thefront panel.

O 7

o

.

S h ie Id / P Iate (R)

o

o

[>

[>

(>

~;

(~ ~~~Z:i>~~:~)~f~F;{~~!~~b G~

Qj~, (~i'~~~) ~~;~~

~~ 2. Remove the 5 screws (O-O)-

Heat Sink

z2~

~)

~(~

Rear Panel

'l~ ~ o ~OI~)

.

~j*o [>

P.C.B .

5. Remove the connector(CP702). 6, Loose sections R and C on the main P,C.B, and then release the claws of the bottom chassis and remove the rear panel,

7, Slide the heat sink in the direction of arrow C.

O~. Shield Plate (R)

Front Panel=

~

~p

Rear Panel

Ma'n P.C.B.

C

Bottom Chassis

8, Installtheshield plate (R) inthe rear panel and the heat sink with the 2 screws (O and O)-

9. Place the rear panel, the heat sink, the main P.C.B. and the front panel in the direction of arrow ~) as shown.

10. Re-install the front panel in the main P.C.B. and then mount the shield plate (R) and fix it with the screw O-

-8-

Ref. No. 11

Procedure 1 ->2-> I 0~> 1 1

Removal of the power IC

Power IC

~~~~~:~ ~~~~

. ~

ol 1. Removethesub heatsink. 2. Removethe2screws (O, O)-

.l Sub Heat Sink /

oWhen mounting the'power IC and sub heat sink, apply silicon thermal com pound (SZZOLI 5 or equivalent) to the rear of the power IC.

Ref. No. 13 Removal of the power transformer

Ref. No. 12

Procedure 1->2~>12

Removal of the AC IN P.C.B.

C I aws

l~ ,

o Release the 2 claws.

! , -l

AC IN P.C.B.

Procedure 1~>13

~

o//' o o~+

o ~ o ~

Power Transformer

oRemove the 5 screws (O-O).

eReplacement of the Foot. 1 . Remove the 4 heat melted posts on the chassis with a pairof diagonal pliers or similar tool.

2. To mount the foot (RKAO009-1 ) on the chassis, melt the 4 posts with a soldering iron.

Heat Melted Posts

Chassis Soldering lron Foot

Foot (RKAO009- I )

-9-

l MEASUREMENTS AND ADJUSTMENTS Control positions and equipment used. - -eVolume knob............. ..,co (Minimum) e Speaker selectors (A) switch

e Speaker selectors (B) switch e Balance control knob . . .

otf O

VOLTAGE CONTROL (V) AMP. IDLING (lCQ) ADJUST-MENT 1. Test equipment connection is shown in figure. (Connect the DC EVM on both channels.)

2. Completely turn the (V) amp. adjusting volumes (VR451, VR452) counter-clockwise.

3. Turn ON the set when it is cold, and 15 sec. Iater, adjust VR451 and VR452 so that the voltage is 25 mV. Also, check that the voltage is 25-30 mV (standard: 28 mV) after lapse of 10-15 minutes. (Below 30 mV after lapse of 60 mln.)

DC EVM DC EVM ~] Lche Rchelll:-~] + - TP451 1 - CL + a Lche RchC

Un.it

eAdjustment points

o Voltage control Amp.

o ICQ (bias) (mV)

VR451

o Lch Rch ~~~ r~~

TP45L1

VR452 ~~ 28

25

28 mV

I

I

o ~J-- Time 1 O 30 sec. 2 min. 1 5 min. Relay ON (4-6 sec.)

-10-

I WIRING CONNECTION DIAGRAM SPEAKERS

l lh !ll !ll

JK501

r~~~~~~l~i rT~~;~~~~~Tl[liiELiL~iLiTAPE21DAT ~F7~~~TLL~liLJ:TA PE I ~1 rT~TILi~iiAUx r~I~ILi~JC D rFTT~~~~;lLIJilli~JTUNER r~~lI~~T~~LILll~~li~PHoNO r~~l~lLtill~JGND

DIRECT CREC ouT] (REC ouT) ( PLAYBACK I ( PLAYBACN ) [l

w507 W505 W509 W510 w508 JKI05

- WHTIRED - WHTI RED - WHTIGPY - WHTIGRY - WHT/BLK -WHTIBLX

JK 04 JKI03 JK 02 JK OI

W506

mu' LED(VOLUME IND ) P.C B.

"..= ~~i{ h "

W602 12

Hc~c: ;,1)ac

123

~~~~1~H -

WIO l --LIE~~i~GRY WHT ~ ~ SLD RED

- WHT/ B L K

- WHTIBLK - WHTIORG - WH TIORG - WH T lOR G

W5 lO

W509 W50s w502 W501

El MAIN PCB

w 70 I ~i W601 ~1

#W 04 Wi05

cNl02 321 AMP P C.B.

W 103

EQ/TOME

~1:::~:::#~~::!~":i:ii~~FT~~ f ~~T~Tlll:~=

.*.'==' ,,~"..**''=, WI057 6W{452 f ~~~~:~7 6"V:~45~1L

___l CP702 l 23

l

CN602 2 l

cP20

CP401 1254567

W 03

CN401

CP 05 123456

32 CN 10 l

CPI04 12545678

CPI05 1234567891

CNI05 CNI04 CNI03

~j W601

~vOLUME P C.B.

l] LED P. C. B.

[~~~~~~l CN201

VR201

~7~TT~i~ VOLUME

123 C:x:, IJJJJ O: a)aO ~~F ~1:== ~F ;;

-Qd'O I,lQd ~~O~ ~:;~

~cAPACITOR PC.B.

[~l~]

[j

I

,: LJ aE

I~

z aE o H T ~:

W2

~~ ~

>Q:

1!, h :: ~

:F aE C, H I ;

I

,b UJ a:

~ = ~F

~s a, o h :~ ~

C!, O: O H I ;

e!,

O H :: ~ HEADPHONES/ E SPEAKER SWITCH P.C B. TI

~

W507 W508 W506

(B)

( s50 -2 J

w505 W50 l

C S501-1 )

w502 w50 3

JK502

(A)

SPEAXERS PHONES

r~~ ~ :

}

I

T ~AWNESRFORMER TRANSFORMER

AC IN ~ 1 P.C.B.

~ -1: w7 ~l t

W2

WHTI BLU

WHT/ B RN

R pOWER SWITCH P. C .B . W3

(Sl)

POW E R

-14-

A

B

c

D

E

F

1 2 3 4 5 6 7 '8 9 10 I SCHEMATIC DIAGRAM

(parts nst on pa9es 21 ' 22' 25' 26)

D pHONO EQITONE AMP CIRCUIT ~vOLUME CIRCUIT

CN O

LED(VOLUME IND.) D C I RCU I T

Crhis schem~ development

Q Iol - I04 2S K 1 70 B L D I FFEREN T I A L

AMP J

QI018 +*

R 19 av Io

C, 1200P [VOLU ME l

7v

3v '('~l~

uJ''

c 09 22coP

s

~l -J Q I 02

ov G 8 Tv

t,)

a 3v s

R2 tOO S

a 3v

0:;

c~,h or,

D

R 22

a = 3v

co

8 7v D Q I 03 G ov

8

s

+

D G av Q 104

8 7v

-7 7V 4 - Vcc

5 8 7v

R 1 23 150

l T TV /

SO NPUT

~ I --- TAPE21DAT l 2---TAPE 3--- CD 4--* TUNER 5--- PHONO +6--- AUX SELE CTOR )

C 13 OO R125 6 8K

c 15 o 059 R 127 82 K

a,~ ~o -h c,o u~--rr, ~ll7 Rl51 50V 560

5 8 7v

6 8 7v

2

7

8 TV l ov

+ vcc 8

OV 1 7

IC 101 l c ~ol UPC 45 70 C PHONO EQ AMP

TV

R t 24 R 1 2S

Cll2

Cl 4

R 2e

C t6

Cll8 R 132

~1

VR20 1 - 2 fOOK(A] R 25 3 R 25 i 120K 4 7K T l

zo:~ "cY-~0E>8

I"O CY0'1h VF~ It O C'

R2 5 5 3K

l ~~~~~{ ~ I R217 r -~ l 8:L 1 820 K / 7 V :stereo I '4~:L mono I ---- ~ L __J SI05-2 'MODE)

R219 2 7K

C213 ,X-O 056

VR20 , -IOOK IA

R232 R254

T H 202

R2 22 K

R2 6

JXIO -l GNDi

~" " .= "H~~:~o: ::~1~a~0~-

*" . -* T'~rLER: ::(~~~~~~

*~ .=- I 'L : ::6~:~0~

** .=-= ~: ::~ A*x 6~: **,..- l

r RECrLou:T::Q~'

+APE * L '"'"=~' ' LAY~c:

5 6 7 8 9 10 11 12 13 14

Crhis schematic diagram may be modified at any time with the development of new technology.)

~ VOLUME C I RCU I T LED ( VOLUME I~ C I RCU I T IND.) (VOLUME I

VR20 -2 OOK( A l R 25 5 120K

R 25 4 7K

T

C2 1 3 O 056

2

-l

VR20 -iOOK {A R252

R254

-

R219 2 JK

r~~ otf

L

T H 20

2

R2 l 22 K

5 4 5 CN201 [ I /2 }

CP20 1 1 1 /2]

C50 50v5 5

34 5

c507 50v4 7

c305 82P +

c ~0 U PC 4570C TONE AMP

R301 560 "~ . " Il " oroc~,

5 av

R505 220K

iC501

+

c309 39 P c3 16v o

< r'8 o:->

R5 9 8K C313 O 082

-Vcc 4

7V

6 ov

7 OV 17 TV

8 + vcc

830i?5

uo

0~e,O CL :-h

, (YOLUME] / VR20 f- 5 VR20 1 - 4

20K(B] 20K[B

T

c 302

3

R3 5 S 9K r~~~ defeat on ~- - -R3 6

6

R302 ~~l

S 103- 5 an I(LOUDNESS]

-HH - c214

+

av 2 ov av

-1 S30 ( TON E l CONTROL

6

c3 o

c506 R30e

S 502 [ POWER AMP DIREeTl

l 2::L:]O loff off on on L

C3 2 c3 s

J

7

7

8

a

9

9

o *CN20 1 ( /2 }

~ 8aD '::]o ll z

CP20 1 , I 12

2

o 2

=

W502

cNeo2

c75 M52 18P EXTEND ACTIVE SERVO

De05 ~ o +

Q75 I 2 SC 394 4 AQRS EXTEND ACT VE SERVO Q75 I i T 7v 48 v

ov

Notes: eS1 eSIO1 eSI02 e S1 O3-1 e S1 03-2 e S1 03-3 eS301 e S302 eS501-1 eS501-2

C756 820P R755 82 K

5 6 ov ov

8 3v

r)~ + I,)-

7 8 14 d~

= CP40 I

Power switch in "on" position. Input selector swltch m "phono" position. Recording output selector switch in "tape 21 DAT~ I " posttlon Phono cartridge selector switch in "MM" position. Mode selector switch in "stereo" position. Loudness swltch m "off" position. Tone control switch in "defeat" position. Power amplifier direct switch in "off" position. Speaker (A) selector switch in "off" position. Speaker (B) selector switch in "off" position. Positive voltage iines. Negative voltage lines. Phono Signal (Lch) Recording Signal

elndicated voltage values are the startdard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. Important safety notice: Components identified by ll~/~ mark have special characteristics important for safety. When replacing any of these components, use only manufacturer's specified parts. 'Caution! IC and LSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. 'Cover the parts boxes made ot plastics with aluminum foil. 'Ground the soldering iron. 'Put a conductive mat on the work table. * 'DO not touch the legs of IC or LSI with the fingers directly. *

R220

CN 05

R2 2

C N40 l

B CAPAC I TOR CIRCUIT

HEADPHONES/ ESPEAKER SWITCH C CU IT

HEADPHONES

C I RCU IT

IA AC IN (240V-'-CEB) ) 220V - - -CE , EG )

50 / 60 Hz

-12- -13-

A

B

c

D

E

F

1 2 3 4 5 6 7 8

I PRINTED CIRCUIT BOARDS (parts nston pa9es 21' 22' 25' 26) ~ EQ/TONE AMP P'c'B A PHONO INPUT SELECTOR POWER AMP DIRECT

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r~ ~ ~ ~ ~~~ r ~ --1 ~ ~~~ ~~Lli ~~: l D603 1 1 D602 l ~~ __-J L- _ _ .~~ J ~-(Current drive Ind.) (Voltage control Ind.)

[~ HEADPHONES/SPEAKER SWITCH PC.B

,[ ~' I i ~',~.'~!'e. r s ~ '>~"~:'i"~~'~'*"',.~~~

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10 11 12 13 14 15 16 17 '

E!i~ rFrlT~~1 I~] r~ll;~T~~] l] PHONO TUNER r~7~1Tl r~~"~~~~~l~~iJ _~IFI~~T;T~~TI~I TAPE 2/DAT TAPE l (REC ouT) (PLAYBACK) (REC ouT) (PLAYBACK) DIRECT r~ ~~ ~~~{?~~~~~l --- -- - ~ ( A OR B '4-16Cl/EACH SpEAKER) A ANDB 8-16n/EACH SPEAKER :'*"'/./.i///;'i~a~~ _~./.;~..,='"=:~'l~1;:,1=1~

~~~

1

/ 50 l

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PHONO ( L ch )

RiAA ~ ~c7'

O 10 1'103 D I ffe rentlal ( e]

2

TUNER C~ (L ch)

MM M~1 MM ~~l S 103 - l

(phono selector]

c5] 5L~-J u pc4570c ~~ EQUA L I ZE R AMP

CD @ (Lch) i

Aux @ (Lch] l

TAPE l PLAYBAC (Lch )

TAPE2 / DAT ( Lch )

(

r

S 10 l input selector )

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I

l

l

l

l

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l

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l

l

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stereo

l

l

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i I (mode) l l I l Il l l l l l l l l l l ll I I l I ll l l ll

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l t l L____J

VR20 1 - 2 Cvolume)

u pc4570c ~~ TONE AMP ,3] ~~_~ ,2' ~ l(l]

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on SI03-3 ( Ioudness)

off

~~.' LOuDNEss.

VR202 ( bo I ance)

l

l

l

l

l

= o

t

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o = o J: ~ L o ,:

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defeat

treble )lKba ss

on

on

V R 20 1 -4 ( vo lume)

POWER AMP DI RECT

off

S 30 l ( tone control l

o u :, o

l

i

l

I

l

l

l

l

l

l

l

TAPE I (Lch) ~ REC OUT

H < o QJ ,

a ~ ~l

l

l

l

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C Iass AA Voltage control amplifier

( rec

I

I

I

i~, t

14 1 5 ,5] ,6, Current m i r ro r

15 (4 l

12 ,7,

S 102 selector )

le (3,

+ I

l

l

L_

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Q401 Pre drive

I

l

(8]

Q 453 Li m ite r

9

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Q465 Q 457,46 l

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B Ia s Muti n9 I I

11-al' J ,, 18

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lO

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Q45 l

Q 459 ,463 N AA class amp

Limi te r

Cu rren t st obi I izer

-B

Q 455

r-12 l (t6 l

+ Bias 13 "5' I

I

l

l

l

l

I

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Mute det.

Short det.

TAPE2 / DAT REC OUT ~ ( Lch )

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l

I

l

I

l

l

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J () indicates pin right channel NO. of

I

l

I

l

I RL50 l

S501 - l (A)

on

~HEADPHONES

off

SSOI -2 (B) O~L~~on + ~ off

Re]ay d rive /LED drive

D 60 I

QSOl

;

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, D SO2

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control ind.) +

( current

Tl SI ( power]

+1 ~J^ ~ ,,=^"=~' ~j J

ll ll +B

+B

M52 18 P l~~:Q 75 1 ,752

-B

E x ten d act ive se rvo

-B

D701 RECTI Fl ER

r l

J9j

-1 l

l

l

l

FI

AC IN

-19- - 20 -

REPLACEMENTPARTSLISTNotes1portantsafetynotice

CoponentsidentifiedbyarkhavespecialcharacteristicsiportantforsafetyWhenreplacinganyofthesecoponentsuseonlyanufacturersspecifiedpartsTheparenthesizedindicationsintheRearkscolunsspecifytheareasRefertothecoverpageforareaPartsithouttheseindicationscanbeuselforallareas

Ref PartN PartNameDescriptiRemarks ReNQ Park PartNameDescriptionRemarks

VARIABLERESISmRSINGDCIRCUITS

VR201 RRV16JOIAVVOLCONmOLIC101 UPC4570CICPHONOQP VR202 HFDAO14G15RBCECOOLIC301 UPC4570CICTONE VR301302C2XAOO15ONECONTROLIC401 AN7062NICVOLTAGE VR451452EVNDXAAOOB52VRICQADIC501 SVI3205ICPORR IC751 M5218P ICACTISERVO ISTORS

TSISTORS TH201202ERTD2ZHL104TTHERMISTORTH451452ERTD2ZHL104TTHERMISTOR

Q1011042SK170BLTRANSISTORQ4014022SA1123RSITATRANSISTOR COILSQ4514522SC2631RSTrATRANSISTORQ4534542SC3311AQSTATRANSISTOR L1 SLQZ65049COIL EG

Q4554562SA1309AQSTATRANSISTOR L101102SLMIZ33COIL EG

Q4574582SC2631RSTrATRANSISTOR L501504SLQY18HOCOILQ454602SA1123RSITATRANSISTOR Q4614622SC3944AQRSSISTOR NSFORS634642SA1535AQRSTRANSISTOR Q4654662SC1685NCQRSTRANSISTOR T1 RFKCUV670EKPERTRSFORMEREEGQ501 2SA992EFPTATRSISTOR T1 RFNCUV670EBKERTRSFomREBQ751 2SC3944AQRSTRANSISTORQ752 2SA1535AQRSTRANSISTOR SES

DIODES F1 XBA2C31TBOFUSE250VT315AEGF1 XBA2C25TBOFUSE250VT25AEB

D101102m165TADIODED401402MA167ATADIODE ITCHESD403404MA4036MrADIODE D405406MA165TADIODE S1 ESB8249VPOWER D428 MA4160hADIODE S101 RSR6BOO1INTSELECTORD451452MA29WATADIODE S102 RSS6DOO1CSELECTORD453456165TA DIODE S103 ESB68106mDEOUDNESSPHONOD501 m165TADIODE S301 ESB68107TONECONTROLD502 4051MrADIODE S302 ESB68109PORDICTD503 4160MrADIODE S501 RSP2002SPRSELECTORD504 4160MrADlODED601 1SR35200TBDlODE JACKSD602 LNO14472PHLEDD603 LNO18472PHLED JK1 SJS92311BACINLET D604 LNO18304PLED JK101 F3067NJTERMINALBOARDD605 m4033ADIODE JK102104SJF3069NTERMINALBOARDD701 SVDS10B20FDlODE JK105 SJF3068NJTERMINALBOARDD751752MA4180ADIODE JK501 SJF4819SPTERMINALD753 m165TADIODE JK502 SJJD19 HEADPHONESJACK

CN101102SJT3321CONNECTOR3P

21

RefN6 PartN PartNameDescriptiRemarks RefNo PartN6 PartNameDescriptionRemarks

CN103 SJS51080WLSOCKET10PCN104 SJS50880SOCKET8P FUSEHOLDERCN105 SJS50680WLSOCKET6PCN201 SJS5108LSOCKET10P FC12 EYF52BCSEmLDER CN401 SJS5078LSOCKET7PCN602 SJT3215CONNECTOR2P RELAYCP103 SJT31047WLCONNECTOR10PCP104 SJT30847WLCONNECTOR8P RL501 SSY126 RELAY CP105 SJT30641COECTOR6PCP201 SJT3104LCONNECTOR10PCP401 SJT30747WLCONNECTOR7PCP702 RJPIA3303CONNECTOR3P

RefN6 Part PartNameDescriptiRemarks RefN PartNo PartNameDescriptionRemarks

31 RGKO108KSIDEORNENTR

CABINETPARTS 32 RMRO144HOLDER33 RMRO137KHOLDER

1 RGWOOO22KVOLUMEKNOB 34 XTB410FFZSCREW2 RGWOO29KlNPUTSELECTKNOB 35 SHR415 LATCH3 RGWOO272KRECSELECTKNOB 36 XTW38T SCREW4 RGWOO30KNCEITONEKNOB 37 RFUV570EK1VOLUMEORNENT5 041KCABINET 38 RFKNUV470EK2INDICATORORNNT6 SJPA111SHORTPIN 39 RMNOO83SE7 SNE21291SCREW 41 SUS890 SPRING EG8 RGROO21AEREARPANEL E 42 COO32 SPRING8 RGROO21AGREARPANEL EB8 RGROO21AFREARPANEL EG PACKINGmTERIAL9 RGUOO30PORBUTTON10 RGUO118KSPEAKERBUTTON P1 RPGO554CARTONBOX11 RGUO119KDlRECTBUTrON P2 SPS5185PPERCORD12 RGUO120KSIGNALBUITON P3 SPS52572PAIFRONT14 RFKJUV670EKCASSISASSY P4 SPS52582PREAR141 RKAOOO91FOOT P5 SPP701 PROTECTlONCOVER142 XTB36J SCREW15 RFKGUV670EKFRONTPANELASSY ACCESSORIES18 RSQOOO4RECSELECTOR19 XTB38 SCREW A1 FO712 lNSTRUCTIONSALASSYE20 SHE1872HOLDER A1 RQFO713INSTRUCTlONSASSYEB21 SJS9231AAClNLETCOVER A1 FO714 INSTRUCTIONSALASSYEG22 SNE40211NUT A11 AOO13 WARRANTYCARD23 XTBS38JFZ1SCREW A12 CBO169SERVICENTORLIST24 XTB316JFZSCREW A13 RFKSUV670EKINSTRUCTIONSALE25 XTB320JFZSCREW A13 0708B INSTRUCTIONSjALEB26 QOOO61ORNT A13 RQTO617DINSTRUCTlONSALEG27 XTB38JFZSCREW A14 CSOOO9CAUTIONNOTEforFTZEG28 XT38TSCREW A2 SFDACO5EO3POERCORD EEG29 RGKOO97ORNNTGOLDLINE A2 SJA193 PERCORD EB30 KO109KSIDEORNNTL

22

A

B

c

D

E

F

1 2 3 4 5 6 7 8 9

I EXPLODED VIEW 4"

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/ / /

l /~~-23 r ' ll ~ l l ~;! Il ll ll Il Il ll ll :I

IU

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25 23 For ( E B)on ty 2 l l:'1 D ll4A~J'I

ll 23 For ( E B)on ly / i / '? / I / l 23 /~2 3 C~~ ~) "

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L. 23 l $ $ ~ ' UK501 //~'~ ~ ,t~ 4 1 For (EG)only > ' JKI05 );

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25 27

25

o 42

27 24 36

23 CPI03 20 20

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14-2 ~~" 18

27 14

31 14-l

23

- 24 -

27 33 27

l~

22 3

- 23 -

23

CN 101

14- l

~

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NotesCapacityvaluseareinicrofaradsuFunlessResistancevaluesareinohsunlessspecified

specifiedotherise

otherisePPicofaradspFFFaradsF1K1000Ol1M1000k0

RefN PartN6 ValuesRearksRefNo PartN6 ValuesRemarks1 PartN ValuesRemarksR455456ERDS2TJ391T14W390 116 ECQVIH393JZ350VO039U

RESISIDRS R457458ERDS2TJ823T14W82K

lC115

C117118UESIHO10MITA50VIUR459460ERDFS2VJ101T14W100 lC119120EC1H472350V4700P

R101104ERDS2TJ102T14WIKEG R461464ERDS2TJ223T14W22K lC121122ECKRIH472KB550V4700PR105106ERDS2TJ473T14W47K R465468ERDFS2VJ101T14W100 lC123124ECBTIH270J550V27PEGR107108ERDS2TJ221T14W220 R469470ERDFS2VJ821T14W820 lC125 ECBTIH820KB550V82PEGm09110ERDS2TJ220T14W22 R471474ERDFS2VJ2R2T14W22 lC201210ECBTIH101KB550V100PEGR111116FSR25TJ332T214W33K R501502ERD25FVJ362T14W36K lC213214ECQVIH563JZ350VO056UR117118ERDS2TJ151T14W150 R503504ERDFS2VJ121T14W120 ECBTIH181KB550V180PEGR119120ERDS2TJ100T14W10 R505506ERDFS2VJ392T14W39K

lC221224

C251252ECBTIH101KB550V100PEGR121122ERDS2TJ101T14W100 R507508ERDFS2VJ121T14W120 lC301302ECAIHPXS3R3B50V33UR123124ERDS2TJ151T14W150 R509512RREEMKR10SC2WO1 lC303304ECBTIH101KB550V100PR125126ERDS2TJ682T14W68K R513516ERDFS2VJ100T14W10 C305306ECBTIH820KB550V82PR127128ERDS2TJ823T14W82K R517518ERDFS2VJIReT14W1 C307308ECAIHPXS4R7B50V47UR129130ERDS2TJ334T14W330K R519520ERDFS2VJ100T14W10 C309310ECBTIH390J550V39PR131132ERDS2TJ561T14W560 R521522ERDSIFVJ100T110 C311312ECAICPXS100B16V10UR201202ERDS2TJ102T14WIKEGR523524ERG2SJ331H2W330 C313314ECQVIH823JZ350VO082UR203204ERDAS3G102T14WIKEG R525 ERG2SJ821H2W820C315316EC1H1531350VO015UR205210ERDS2TJ102T14WIKEGR526 ERDS2TJ223T14W22K C317318EC1H183W350VO018UR211212ERDAS3G223T14W22K R527 ERDS2TJ223T14W22K C319320EC1H182W350V1800PR213214ERDS2TJ183T14W18K R528 ERDS2TJ824T14W820K lC321322ECKRIH103ZF550VO01UR215216ERDS2TJ332T14W33K R529 ERDS2TJ124T14W120K ECAIHPXS3R3B50V33UR217 ERDS2TJ824T14W820K R530 ERDSIFVJ682T168K

lC401402

C403404ECBTIH271KB550V270PR219220ERDAS3G272T14W27K R531532RDSIFVJ100T12W10 C405406ECAICPXS220B16V22UR221224ERDS2J471T14W470EGR533534ERDS2TJ182T14W18K C407408ECBTIH820KB550V82PR231232ERDAS3G472T14W47K R535 ERDS2TJ223T14W22K C409410ECBTIH100J550V10PR233234ERDAS3G124T14W120K R601 ERDSIFVJ180T12W18 ECBTIH681KB550V680PR251252ERDAS3G102T14WIKEG R602603ERDS2TJ331T14W330

lC411412

C413414ECCR270D5500V7PR301302ERDAS3G561T14W560 R604 ERDS2TJ471T14W470 C415416ECBTIH102KB550V1000PR303304ERDS2TJ823T14W82K R707708ERDFS2VJ6R8T14W68 C417418ECBTIH102KB550V1000PR305306ERDS2TJ224T14W220K ERDFS2VJ470T14W47 C427428ECKRIH223ZF550VO022UR307308ERDS2TJ392T14W39K

lR709710

R711712ERDFS2VJ331T14W330 lc9 ECEAIJU220B63V22UR309310ERDS2TJ223T14W22K R751752ERDS2TJ223T14W22K C451452ECKRIH333ZF550VO033UR311312ERDS2TJ102T14WIK R753 ERDS2TJ102T14WIK C453456ECCR2H680K5500V68PR313314ERDS2TJ562T14W56K R754 ERDS2TJ153T14W15K C457458ECEA1010B50VIUR315316ERDAS3G392T14W39K R755 ERDS2TJ823T14W82K C459460ECEAIHK2R2B50V22UR317318ERDAS3G223T14W22K R756 ERDS2TJ153T14W15K C501504ECAOJPXS101B6V100UR319320ERDS2TJ183T14W18K R757758ERDS2TJ102T14WIK C505506ECKRIH223ZF550VO022UEEGR401402ERDS2TJ122T14W12K C505506ECKRIH473ZF550VO047UEBR403404ERDS2TJ823T14W82K CAPACITORS C507 ECEAICU101B16V100UR405406ERDAS3G272T14W27K ECEA1470B50V47UR407408ERDAS3G823T14W82K Ic1 ECKWKC103PF2400VO01U

lC508

C509 ECEAIHMOOSB50V10UR409410ERDS2TJ561T14W560 ECBTIH120J550V12PEG 512 ECBTIH180J550V18PR411412ERDFS2VJ470T14W47

iC101102

C103104ECKRIH103ZF550VO01U

lC511

C513514ECKRIH223ZF550VO022UEEGR437 ERDS2TJ473T14W47K C105106ECBTIH820KB550V82P lC513514ECKRIH473ZF550VG047UEBR438 ERDSIFVJ682T12W68K C107108ECEAOJU222E63V2200U C515518ECKRIH473ZF550VO047UEBR439 ERDFS2VJ470T14W47 C109110ECQMIH222350V2200P C519522EC1H153350VO015UEGR451452ERDS2TJ182T14W18K C111112ECQMIH122350V1200P C523524ECBTIH102KB550V1000PEGR453454ERDS2TJ393T14W39K C113114ECQMIH103350VO01U C525526ECQBIH272JZ350V2700P

25

Ref Part ValuesRemarks

C601 ECEAICU221B16V220UC705706ECEDIJM103T63V10000UC707708ECEAIJU220B63V22UC709710ECEAIJU220B63V22UC711 ECKR2H103ZU500VO01UEEBC711 ECQE2104KF3250VO1UEGC712 ECEAIH010B50VIUC713714ECHRIH103JZ350VO01UC715716ECAIJPXS221E63V220UC751753ECAIEPXS100B25V10UC754755ECA1XS3R3B50V33UC756 ECBTIH821KB550V820PC757758ECKRIH103ZF550VO01U

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