ORDER NO. CRT2261 KEH-P4800 MULTI-CD CONTROL HIGH … · -See the separate manual CX-631(CRT1640)...

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880

C PIONEER ELECTRONIC CORPORATION 1998 K-ZZU. OCT. 1998 Printed in Japan

ORDER NO.

CRT2261

MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER

KEH-P4800 X1M/UC

ServiceManual

CONTENTS1. SAFETY INFORMATION............................................22. EXPLODED VIEWS AND PARTS LIST ......................23. SCHEMATIC DIAGRAM.............................................84. PCB CONNECTION DIAGRAM................................225. ELECTRICAL PARTS LIST........................................326. ADJUSTMENT.........................................................39

7. GENERAL INFORMATION.......................................417.1 PARTS ................................................................41

7.1.1 IC ...............................................................417.1.2 DISPLAY ...................................................45

7.2DISASSEMBLY ...................................................467.3BLOCK DIAGRAM ..............................................47

8. OPERATIONS AND SPECIFICATIONS....................48

NOTE:

- See the separate manual CX-631(CRT1640) for the cassette mechanism description.

- The cassette mechanism assy employed in this model is one of 2L series.

- This service manual does not describe the CD test mode.For the operations in the CD test mode, refer to the CD player's Service Manual.

KEH-P4850 X1M/ES

KEH-P4850/X1M/ES

4

KEH-P4800,P4850

2.2 EXTERIOR

5

KEH-P4800,P4850

1 Screw BSZ26P050FMC2 Screw BSZ30P050FMC3 Cord Assy CDE57984 Fuse(10A) CEK11365 Case CNB2350

6 Panel CNS51327 Screw BSZ30P050FMC8 Screw BSZ30P200FMC9 Holder CNC5704

10 Cushion CNM5210

11 Insulator CNM596312 Tuner Amp Unit See Contrast table(2)13 Screw BPZ26P080FMC14 Screw BSZ26P080FMC15 Screw BSZ26P160FMC

16 FM/AM Tuner Unit See Contrast table(2)17 Holder CNC655418 Pin Jack(CN301) CKB103519 Plug(CN603) CKM127020 Connector(CN701) CKS3408

21 Connector(CN602) CKS356822 Connector(CN601) CKS358123 Antenna Jack(CN402) CKX105624 Panel CNB234325 Holder CNC5399

26 Holder CNC684527 Holder CNC799628 Heat Sink CNR150529 Chassis Unit CXB301230 Screw ISS26P055FUC

31 Holder Unit CXB268732 Detach Grille Assy See Contrast table(2)33 Screw BPZ20P060FMC34 Screw BPZ20P100FZK35 Button(Detach) CAC5789

36 Button(1-6) CAC579437 Button(-) CAC593038 Button(EQ) CAC613539 Button(+) CAC578340 Button(Eject) CAC5793

41 Button(Display) CAC578842 Button(Cross) CAC578643 Button(A,B) CAC578744 Spring CBH210345 Cover CNS5130

46 Housing CNV552847 Keyboard Unit See Contrast table(2)48 LCD(LCD1901) CAW154349 Connector(CN1901) CKS358050 Holder CNC7981

51 Sheet CNM594152 Lighting Conductor CNV552753 Connector CNV553154 Grille Unit See Contrast table(2)55 Button CAC4836

56 Spring CBH183457 Spring CBH183558 Spring CBH218259 Bracket CNC613560 Bracket CNC6791

61 Arm CNV469262 Arm CNV469363 Arm CNV472864 Panel Unit CXB301965 Door CAT2028

66 Spring CBH183867 Screw IMS20P030FZK68 Case Assy CXB352069 Cassette Mechanism ModuleEXK3695

70 IC(IC302) TDA738471 Transistor(Q904) 2SD2396

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

6

KEH-P4800,P4850

2.3 CASSETTE MECHANISM MODULE

(2)CONTRAST TABLEKEH-P4800/X1M/UC and KEH-P4850/X1M/ES have the same construction except for the following:

Part No.Mark No. Description KEH-P4800/X1M/UC KEH-P4850/X1M/ES

12 Tuner Amp Unit CWM6248 CWM624916 FM/AM Tuner Unit CWE1467 CWE148632 Detach Grille Assy CXB3322 CXB332347 Keyboard Unit CWM6259 CWM626054 Grille Unit CXB4065 CXB4066

7

KEH-P4800,P4850

Mark No. Description Part No. Mark No. Description Part No.

1 Screw BSZ20P040FMC2 Washer CBF10373 Washer CBF10384 Washer CBG10035 Deck Unit EWM1021

6 Screw EBA10287 Screw EBA10378 Spring EBH15319 Spring EBH1575

10 Plug(CN251) CKS3540

11 Spring EBH151512 Spring EBH158713 Spring EBH151714 Spring EBH151815 •••••

16 Spring EBH153717 Cord EDD102018 Photo-interrupter(EGN2,3) EGN100619 Photo-interrupter(EGN1) EGN100520 Roller ENR1031

21 Shaft ELA137322 Pinch Roller ENV151823 Arm ENC148924 Arm ENC139725 Guide ENC1481

26 Holder ENC141727 Lever ENC144828 Arm ENC1488

* 29 Motor EXM103130 Belt ENT1027

31 Gear ENV134732 Collar ENV150833 Gear ENV135034 Flywheel ENV150035 Worm Gear ENV1439

36 Worm Wheel ENV144037 Gear ENR102838 Lever ENV144239 •••••40 Gathering PCB ENX1037

41 Gathering PCB ENX104242 Switch(S1) ESG100443 Motor Unit(M2) EXA148544 Chassis Unit EXA151145 Pinch Holder ENV1485

46 Pinch Holder ENV148647 Reel Unit EXA154348 Head Base Unit EXA145749 Lever Unit EXA143850 Gear Unit EXA1574

51 Frame Unit EXA145852 Lever Unit EXA143953 Head Assy(HD1) EXA150654 Motor Unit(M1) EXA149055 Washer HBF-179

56 Screw BMZ20P022FMC57 Spring EBH154558 Washer YE20FUC59 Pinch Holder Unit EXA152960 Pinch Holder Unit EXA1528

- CASSETTE MECHANISM MODULE SECTION PARTS LIST

8

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

3. SCHEMATIC DIAGRAM3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

A-a A-b

A-a A-b

A-b A-a

Large sizeSCH diagram

Guide page

Detailed page

4R7/

16

UC model

ES model

331:

UC

mo

del

510:

ES

mo

del

FM/AM TUNER UNIT

TAPE: -9dBs

FM: -15.5dBsAM: -22dBs

For resistors and capacitors in the circuit diagrams, their resistance values orcapacitance values are expressed in codes:

Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms

*Capacitors Code Practical value 103 10kpF(0.01uF) 101/10 100uF/10V

B

D

KEYBOARD UNITC

DE

CK

UN

IT

A-a

A

9

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

102:UC103:ES

PD4973A

TUNER AMP UNIT

CD: +2.2dBs

FM: +9.6dBsAM: -3.1dBsTAPE: -4dBsCD: +10.3dBs

FM: +35.6dBsAM: +29.1dBsTAPE: +22.0dBsCD: +36.3dBs

SYSTEM CONTROLLER

IP-BUS DRIVER

ELECTRONIC VOLUME

POWER AMP

RESET

8V REGULATER

A

IP-BUS

CEK1136

TAPE: -4.2dBs

CN1901

T

332/

16

A

A-b

10

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

4R7/16

UC

mo

del

ES

mo

del

331:UC model510:ES model

102:

U10

3:E

FM/A

M T

UN

ER

UN

IT

FM: -

15.5

dB

sA

M: -

22d

Bs

B

A-a

A-a

A-b

11

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

TA

PE

: -9d

Bs

SY

ST

EM

For

resi

sto

rs a

nd

cap

acit

ors

in t

he

circ

uit

dia

gra

ms,

th

eir

resi

stan

ce v

alu

es o

rca

pac

itan

ce v

alu

es a

re e

xpre

ssed

in c

od

es:

Ex.

*R

esis

tors

C

od

e

P

ract

ical

val

ue

1

23

12k

oh

ms

1

03

10k

oh

ms

*C

apac

ito

rs

Co

de

P

ract

ical

val

ue

1

03

10kp

F(0.

01u

F)

101

/10

10

0uF/

10V

D

CN

1901

KE

YB

OA

RD

UN

ITC

DECK UNIT

A-a

A-a

A-b

12

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

TU

NE

R A

MP

UN

IT

FM: +

9.6d

Bs

AM

: -3.

1dB

sT

AP

E: -

4dB

sC

D: +

10.3

dB

s

FM: +

35.6

dB

sA

M: +

29.1

dB

sT

AP

E: +

22.0

dB

sC

D: +

36.3

dB

s

IP-B

US

DR

IVE

R

ELE

CT

RO

NIC

VO

LUM

E

PO

WE

R A

MP

RE

SE

T

8V R

EG

ULA

TE

R

A

CE

K11

36

TA

PE

: -4.

2dB

s

332/16

A-a

A-b

A-b

13

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

PD

4973

A

CD

: +2.

2dB

s

CO

NT

RO

LLE

R

8V R

EG

ULA

TE

R

IP-B

US

A-b

A-a

A-b

14

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

3.2 FM/AM TUNER UNIT- KEH-P48000/X1M/UC

B

3

1

2

FM/AM TUNER U

D1

D2

RD

39JS

RD

39JS

R1

R2

2R2M

2R2M

D6

MA

157

B

15

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

B

ER UNIT IFC

A

3

1

2

FM/AM TUNER U

D1

D2

RD

39JS

RD

39JS

R1

R2

2R2M

2R2M

D6

MA

157

16

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

- KEH-P4850/X1M/ES

B

B

ER UNIT IFC

17

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

B

A

18

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

CAW1543

3.3 KEYBOARD UNIT

C

19

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

C KEYBOARD UNIT

43

IL1901-1905:CEL160540mA 14V

EDIT

CLOCK

PTY

PAUSE/BSM

C

CN

601

A

20

KEH-P4800,P4850

A

1 2 3 4

B

C

D

1 2 3 4

3.4 CASSETTE MECHANISM MODULE

D

DECK UNIT

MU

TE

CXA2559Q

11121314151617181920

40393837363534333231

30 29 28 27 26 25 24 23 22 21

1 2 3 4 5 6 7 8 9 10

CN602

R256 220

R287

0R0

C273

22/16

R283 0R0

R284 0R0

R282 0R0

C253 330P

C254 330P

C252 330P

C251 330P

R281 0R0

R255 220

C256

R01

R258

1K

R30

1

18K

R273 1K

R274 1K

R271 1K

R272 1K

R290 0R0

C403 R068

R403 82K

C402

4700P

C401R33

R40216K

R4014R7K

R32

30R

0

R257

1K

C255

R01

C272 R1

C31

310

0P

R38

60R

0

R28

50R

0

HD1HEAD ASSYEXA1506

TEST TAPENCT-150(400Hz, 200nWb/m)

RL

RR

FR

FL

Signal GND

C30

2

R1

C30

2

R1

C30

1

R1

R304R30216K16K

R305

16K

R303

16K

-6dBs(388mV)±1dB A

D

21

KEH-P4800,P48505 6 7 8

A

B

C

D

5 6 7 8

FED

PCB UNIT

REEL PCB

SWITCHES:PCB UNIT S1:LOAD SWITCH..........EJECT-PLAY S2:70µs SWITCH............ON-OFFThe underlined indicates the switch position.

0R0

R068

3 82K

R40216K

R4014R7K

R35

11K

R35

21K

R35

31K

R35

41K

R373 0R0

R35

527

0K

C35

239

00P

R36

218

0

C35

1R

22

C35

3R

01

C35

4R

01

R374 0R0

C356 R01

C355 R1D35

21S

S35

5

M1MOTOR UNIT(MAIN MOTOR)EXA1490

S1 LOAD

ESG1004 S2

ESG1004

70µs

MODESENSE

EGN1EGN1005

EGN2EGN1006FWD ENDSENSE

EGN3EGN1006REV ENDSENSE

M2MOTOR UNIT(SUB MOTOR)EXA1485

Power GND

E

F

31

KEH-P4800,P48501 2 3 4

A

B

C

D

1 2 3 4

Fig. 20

FE

E PCB UNIT

REEL PCB

SIDE A

SIDE B

E

F

LOAD SWS1

70µ SWS2

MODE SENSEEGN1

1

4

7

1 2 3 4 5 6

E PCB UNIT

D CN253

F

32

KEH-P4800,P4850

5. ELECTRICAL PARTS LISTNOTE:- Parts whose parts numbers are omitted are subject to being not supplied.

- The part numbers shown below indicate chip components.Chip Resistor

RS1/_S___J,RS1/__S___JChip Capacitor (except for CQS.....)

CKS....., CCS....., CSZS.....

D 604 Diode 1SS270D 605 Diode 1SS270D 606 Diode 1SS270L 501 Ferri-Inductor LAU2R2KL 502 Ferri-Inductor LAU2R2K

L 601 Ferri-Inductor LAU2R2KL 602 Ferri-Inductor LAU2R2KL 603 Ferri-Inductor LAU2R2KL 702 Ferri-Inductor LAU2R2KL 901 Choke Coil 600µH CTH1168

X 501 Crystal Resonator 7.200MHz CSS1379X 601 Ceramic Resonator 4.194MHz CSS1047

RESISTORS

R 301 RS1/10S0R0JR 302 RS1/10S0R0JR 310 RS1/10S103JR 317 RS1/10S152JR 318 RS1/10S103J

R 319 RS1/10S221JR 320 RS1/10S101JR 321 RS1/10S223JR 322 RS1/10S153JR 323 RS1/10S103J


R 334 RS1/10S101JR 335 RS1/10S223JR 336 RS1/10S223JR 337 RD1/4PU102JR 338 RD1/4PU102J

R 340 RS1/10S0R0JR 342 RS1/10S0R0JR 401 (ES model) RS1/10S182JR 402 RS1/10S162JR 403 RS1/10S162J

R 404 RS1/10S0R0JR 405 (UC model) RS1/10S331JR 405 (ES model) RS1/10S510JR 406 RS1/10S102JR 407 RD1/4PU222J

R 408 RS1/10S222JR 410 RS1/10S102JR 412 RD1/4PU103JR 413 RS1/10S393JR 417 RS1/10S0R0J

R 418 RS1/10S0R0JR 419 RS1/10S0R0JR 502 RS1/10S102JR 503 RS1/10S222JR 506 RS1/10S182J

Unit Number : CWM6248(KEH-P4800/X1M/UC)CWM6249(KEH-P4850/X1M/ES)

Unit Name : Tuner Amp Unit

MISCELLANEOUS

D 607 Diode 1SS270D 608 Diode 1SS270D 901 Diode HZS7L(C2)D 902 Diode 1SR139-400D 903 Diode 1SR139-400

D 904 Diode HZS7L(A1)D 905 Diode 1SR139-400D 906 Diode HZS6L(B2)D 907 Diode HZS9L(B3)D 908 Diode HZS9L(A2)

D 909 Diode 1SR139-400D 910 Diode 1SR139-400IC 301 IC PML003AMIC 302 IC TDA7384IC 501 IC PM2006A

IC 601 IC PD4973AIC 602 IC S-80734ANIC 702 IC CA0008AMIC 901 IC TPD1018FQ 306 Transistor DTC124EK

Q 307 Transistor 2SC1740SQ 308 Transistor DTC143TKQ 309 Transistor DTC143TKQ 310 Transistor DTA124EKQ 401 Transistor 2SC2412K

Q 505 Transistor DTA124EKQ 506 Transistor DTC114EKQ 601 Transistor 2SA933SQ 701 Transistor 2SA1037KQ 702 Transistor DTC114EK

Q 901 Transistor 2SC1740SQ 902 Transistor 2SC2412KQ 903 Transistor 2SD2037Q 904 Transistor 2SD2396Q 905 Transistor 2SB1243

Q 906 Transistor 2SC1740SQ 907 Transistor 2SA1048Q 908 Transistor DTC114TKQ 909 Transistor 2SA1674Q 910 Transistor DTC114TK

Q 911 Transistor 2SC2412KQ 920 Transistor DTC114ESQ 921 Transistor DTA124ESD 301 Diode 1SS270D 302 Diode 1SS270

D 401 Diode 1SS270D 402 Diode 1SS270D 601 Diode 1SS270D 602 Diode 1SS270D 603 Diode 1SS270

=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------


A

33

KEH-P4800,P4850

R 511 RS1/10S0R0JR 512 (UC model) RS1/10S0R0JR 513 RS1/10S102JR 514 RS1/8S0R0JR 515 RS1/10S562J


R 522 RS1/10S392JR 523 RS1/10S0R0JR 524 RS1/10S562JR 525 RS1/10S222JR 526 RS1/10S392J


R 535 RD1/10S102JR 536 RS1/10S473JR 601 RS1/10S124JR 604 RS1/10S473JR 607 RD1/4PU102J


R 615 RS1/10S392JR 616 RD1/4PU222JR 617 RD1/4PU223JR 618 RD1/4PU222JR 619 RD1/4PU222J

R 621 RS1/10S222JR 622 RS1/10S222JR 623 RD1/4PU222JR 624 RS1/10S222JR 625 RD1/4PU222J

R 626 RD1/4PU222JR 627 RD1/4PU222JR 628 RD1/4PU222JR 629 RD1/4PU681JR 630 RS1/10S681J

R 633 RD1/4PU681JR 634 RD1/4PU681JR 635 RD1/4PU222JR 636 RS1/10S472JR 637 RS1/10S103J

R 638 RD1/4PU222JR 639 RS1/10S223JR 641 RD1/4PU222JR 642 RS1/10S473JR 643 RS1/10S472J

R 644 RS1/10S472JR 645 RS1/10S472JR 646 RS1/10S103JR 647 RS1/10S103JR 648 (ES model) RS1/10S183J

R 649 (UC model) RS1/10S102JR 649 (ES model) RS1/10S103JR 651 RD1/4PU222JR 653 RS1/8S0R0JR 654 RS1/10S0R0J



R 725 RD1/4PU472JR 726 RS1/10S222JR 901 RS1/10S473JR 902 RS1/10S223JR 903 RS1/10S223J

R 904 RS1/10S473JR 905 RD1/4PU102JR 906 RD1/4PU473JR 907 RS1/10S473JR 908 RS1/10S472J

R 909 RS1/10S332JR 910 RD1/4PU101JR 911 RS1/10S122JR 912 RS1/10S103JR 913 RS1/10S103J

R 914 RS1/10S102JR 915 RS1/10S103JR 916 RS1/10S103JR 917 RS1/10S0R0JR 919 RS1/10S102J


R 944 RS1/10S152JR 948 RS1/10S0R0JR 949 RS1/8S0R0J

CAPACITORS

C 303 CEJA470M10C 304 CEJA100M16C 308 CKSQYB104K50C 309 CKSQYB224K16C 310 CKSQYB224K16

C 311 CKSQYB224K16C 312 CKSQYB224K16C 313 CEJA4R7M35C 314 CEJA4R7M35C 315 CEJA330M10

C 316 CEJA1R0M50C 317 CEJA100M16C 318 CKSYB105K16C 319 CKSQYB224K16C 320 CKSQYB224K16

C 321 CKSQYB224K16C 322 CKSQYB224K16C 323 CKSQYB104K50C 324 3300µF/16V CCH1169C 325 CEJA2R2M50

C 326 CEJA2R2M50C 327 CEJA1R0M50C 328 CEJA1R0M50C 329 CEJA1R0M50C 330 CEJA1R0M50



34

KEH-P4800,P4850

C 331 CKSQYB153K50C 332 CKSQYB153K50C 401 CKSQYB473K50C 402 CKSQYB473K50C 403 CKSQYB223K25

C 407 CKSQYB223K50C 408 CCSQSL101J50C 411 CCSQSL101J50C 413 CKSQYB223K50C 414 CKSQYB103K50

C 504 CKSQYB103K50C 505 CKSQYB103K50C 506 (ES model) CKSQYB103K50C 507 CEJA220M6R3C 508 CKSQYB102K50

C 510 CCSQSL101J50C 511 CKSQYB103K50C 512 CKSQYB103K50C 513 CKSQYB103K50C 514 CCSQCH150J50

C 515 CKSQYB102K50C 516 CCSQCH150J50C 518 CKSQYB103K50C 519 CEJA220M6R3C 520 CKSQYB103K50

C 521 CEJA220M6R3C 522 CKSQYB104K50C 524 CKSQYB103K50C 525 4.7µF/16V CCH1250C 527 CKLSR473K16

C 528 CKSQYB154K16C 530 CEJA220M10C 601 CKSQYB473K50C 602 CEJA2R2M50C 603 CCSQCH101J50

C 604 CCSQCH101J50C 608 CEJA4R7M35C 609 CEJA100M16C 610 CEJA220M10C 611 CKSQYB223K50

C 715 CKSQYB102K50C 716 CKSQYB104K50C 901 CEJA101M10C 902 CKSQYB473K50C 903 470µF/16V CCH1183

C 904 CKSQYB103K50C 905 330µF/10V CCH1181C 906 CKSQYB103K50C 907 100µF/16V CCH1179C 908 CKSQYB103K50

C 910 CKSQYB472K50

Unit Number : CWM6259(KEH-P4800/X1M/UC)CWM6260(KEH-P4850/X1M/ES)

Unit Name : Keyboard Unit

MISCELLANEOUS

D 1901 Chip Diode MA151WKD 1902 Diode MA151WAIC 1901 IC PD6278AL 1901 Ferri-Inductor LAU101KX 1901 Ceramic Resonator 4.97MHz CSS1422

S 1901 Switch CSG1041S 1902 Switch CSG1111S 1903 Switch CSG1111S 1904 Switch CSG1111S 1905 Switch CSG1111




S 1921 Switch CSG1111S 1922 Switch CSG1110IL 1901 Lamp 40mA 14V CEL1605IL 1902 Lamp 40mA 14V CEL1605IL 1903 Lamp 40mA 14V CEL1605

IL 1904 Lamp 40mA 14V CEL1605IL 1905 Lamp 40mA 14V CEL1605LCD1901 LCD CAW1543

RESISTORS



CAPACITORS

C 1901 CEAL100M16C 1902 CKSQYB104K16

Number : CWE1467(UC model)Unit Name : FM/AM Tuner Unit

MISCELLANEOUS

IC 1 IC PA4023BIC 2 IC PA4024AQ 1 Transistor 2SC2412KQ 2 Transistor DTC124EUQ 3 FET 3SK263

Q 31 Transistor 2SC2412KQ 201 FET 2SK932Q 202 Transistor 2SC2412KQ 203 Transistor DTC124EUD 1 Diode RD39JS

D 2 Diode RD39JSD 4 Diode 1SV250D 5 Diode KV1410-F1D 6 Diode MA157D 7 Diode KV1410-F1

D 8 Diode KV1410-F1D 201 Diode MA157D 202 Diode MA157D 231 Diode SVC253L 2 Coil CTC1133



C

B

35

KEH-P4800,P4850

L 3 Inductor LCTB2R2K2125L 4 Coil CTC1133L 5 Coil CTC1132L 51 Ferri-Inductor LAU150KL 201 Ferri-Inductor LAU4R7K

L 202 Ferri-Inductor LAU330KL 203 Inductor CTF1287L 208 Inductor LAU121KL 231 Inductor LCTA3R3J3225T 31 Coil CTE1117

T 51 Coil CTC1159CF 51 Ceramic Filter CTF1441CF 52 Ceramic Filter CTF1441CF 53 Ceramic Filter CTF1441CF 232 Ceramic Filter CTF1348

X 151 Radiator 918.5Hz CSS1365X 231 Crystal Resonator 10.26MHz CSS1111VR 154 Semi-fixed 150kΩ(B) CCP1213

RESISTORS













R 247 RS1/16S123J

CAPACITORS

C 1 CCSQCH6R0D50C 2 CCSRCK2R0C50C 4 CCSRCH820J50C 6 CCSRCH820J50C 8 CKSRYB103K25

C 9 CKSQYB104K16C 10 CCSRCKR50C50C 11 CEJA1R0M50C 12 CKSRYB222K50C 13 CKSRYB222K50

C 14 CCSRCH220J50C 15 CCSRCH6R0D50C 16 CCSRCH8R0D50C 17 CKSRYB222K50C 18 CKSRYB103K25

C 19 CKSRYB222K50C 20 CKSRYB222K50C 21 CEJA100M16C 22 CCSRTH9R0D50C 23 CCSRTH120J50

C 24 CCSRCH471J50C 25 CKSRYB103K25C 26 CCSRCH101J50C 31 CKSRYB103K25C 32 CKSQYB472K50

C 33 CCSRCH5R0C50C 34 CKSQYB104K16C 36 CCSRRH201J50C 51 CKSRYB223K25C 52 CKSRYB103K25

C 54 CCSRCH470J50C 55 CKSQYB223K25C 56 CKSQYB104K16C 57 CKSRYB472K50C 58 CEJA330M10

C 59 CKSRYB103K25C 60 CKSRYB102K50C 61 CCSRCH270J50C 62 CKSRYB103K25C 63 CEJAR22M50

C 101 CEJANP100M10C 102 CKSRYB182K50C 103 CKSRYB682K25C 104 CEJA2R2M50C 105 CKSRYB103K25



36

KEH-P4800,P4850

C 106 CCSRCH151J50C 107 CKSRYB103K25C 151 CKSRYB472K50C 152 CKSQYB104K16C 153 CEJA3R3M50

C 154 CKSQYB104K16C 157 CEJA3R3M50C 158 CKSYB474K16C 159 CEJA220M6R3C 160 CKSQYB104K16

C 161 CKSQYB104K16C 162 CEJA3R3M50C 163 CKSRYB102K50C 170 CCSRCH100D50C 201 CCSRCH471J50

C 202 CCSRCH100D50C 203 CKSRYB332K50C 204 CKSQYB473K16C 205 CKSQYB473K16C 206 CKSQYB104K16

C 207 CCSRCH560J50C 209 CKSQYB104K16C 211 CCSRCH101J50C 212 CEJA470M6R3C 213 CKSRYB103K25

C 216 CCSRCH101J50C 217 CEJA1R5M50C 219 CCSRCH471J50C 220 CKSRYB103K25C 230 CKSRYB103K25

C 231 CCSRCH330J50C 232 CCSRCH150J50C 233 CKSQYB104K16C 234 CEJA330M10C 235 CKSRYB332K50

C 236 CKSQYB473K16C 237 CCSRCH120J50C 239 CKSRYB472K50C 240 CEJAR47M50C 241 CKSQYB104K16

C 242 CEJAR47M50C 243 CEJAR33M50C 244 CKSQYB473K16C 245 CKSRYB333K16C 246 CKSQYB473K16

C 250 CCSRCH471J50

Unit Number : CWE1486(ES model)Unit Name : FM/AM Tuner Unit

MISCELLANEOUS

IC 1 IC PA4023BIC 2 IC PA4024AQ 1 Transistor 2SC2412KQ 2 Transistor DTC124EUQ 3 FET 3SK263

Q 31 Transistor 2SC2412KQ 201 FET 2SK932Q 202 Transistor 2SC2412KQ 203 Transistor DTC124EUD 1 Diode RD39JS

D 2 Diode RD39JSD 4 Diode 1SV250D 5 Diode KV1410-F1D 6 Diode MA157D 7 Diode KV1410-F1

D 8 Diode KV1410-F1D 201 Diode MA157D 202 Diode MA157D 231 Diode SVC253L 2 Coil CTC1133

L 3 Inductor LCTB2R2K2125L 4 Coil CTC1133L 5 Coil CTC1132L 6 Inductor LCTBR15K1608L 51 Ferri-Inductor LAU150K

L 201 Ferri-Inductor LAU4R7KL 202 Ferri-Inductor LAU330KL 203 Inductor CTF1287L 208 Inductor LAU121KL 231 Inductor LCTA3R3J3225

T 31 Coil CTE1117T 51 Coil CTC1159CF 51 Ceramic Filter CTF1441CF 52 Ceramic Filter CTF1441CF 53 Ceramic Filter CTF1441

CF 232 Ceramic Filter CTF1348X 151 Radiator 918.5Hz CSS1365X 231 Crystal Resonator 10.26MHz CSS1111VR 154 Semi-fixed 150kΩ(B) CCP1213

RESISTORS











B

37

KEH-P4800,P4850





R 247 RS1/16S123J

CAPACITORS

C 1 CCSQCH6R0D50C 2 CCSRCK2R0C50C 4 CCSRCH820J50C 6 CCSRCH820J50C 8 CKSRYB103K25

C 9 CKSQYB104K16C 10 CCSRCKR50C50C 11 CEJA1R0M50C 12 CKSRYB222K50C 13 CKSRYB222K50

C 14 CCSRCH220J50C 15 CCSRCH6R0D50C 16 CCSRCH8R0D50C 17 CKSRYB222K50C 18 CKSRYB103K25

C 19 CKSRYB222K50C 20 CKSRYB222K50C 21 CEJA100M16C 22 CCSRTH9R0D50C 23 CCSRTH120J50

C 24 CCSRCH471J50C 25 CKSRYB103K25C 31 CKSRYB103K25C 32 CKSQYB472K50C 33 CCSRCH5R0C50

C 34 CKSQYB104K16C 36 CCSRRH201J50C 51 CKSRYB223K25C 52 CKSRYB103K25C 54 CCSRCH470J50

C 55 CKSQYB223K25C 56 CKSQYB104K16C 57 CKSRYB472K50C 58 CEJA330M10C 59 CKSRYB103K25

C 60 CKSRYB102K50C 61 CCSRCH270J50C 62 CKSRYB103K25C 63 CEJAR22M50C 101 CEJANP100M10

C 102 CKSRYB182K50C 103 CKSRYB682K25C 104 CEJA2R2M50C 105 CKSRYB103K25C 106 CCSRCH151J50

C 107 CKSRYB103K25C 151 CKSRYB472K50C 152 CKSQYB104K16C 153 CEJA3R3M50C 154 CKSQYB104K16

C 157 CEJA3R3M50C 158 CKSYB474K16C 159 CEJA220M6R3C 160 CKSQYB104K16C 161 CKSQYB104K16

C 162 CEJA3R3M50C 163 CKSRYB102K50C 170 CCSRCH100D50C 201 CCSRCH471J50C 202 CCSRCH100D50

C 203 CKSRYB332K50C 204 CKSQYB473K16C 205 CKSQYB473K16C 206 CKSQYB104K16C 207 CCSRCH560J50

C 209 CKSQYB104K16C 211 CCSRCH101J50C 212 CEJA470M6R3C 213 CKSRYB103K25C 216 CCSRCH101J50

C 217 CEJA1R5M50C 219 CCSRCH471J50C 220 CKSRYB103K25C 230 CKSRYB103K25C 231 CCSRCH330J50

C 232 CCSRCH150J50C 233 CKSQYB104K16C 234 CEJA330M10C 235 CKSRYB332K50C 236 CKSQYB473K16

C 237 CCSRCH120J50C 239 CKSRYB472K50C 240 CEJAR47M50C 241 CKSQYB104K16C 242 CEJAR47M50

C 243 CEJAR33M50C 244 CKSQYB473K16C 245 CKSRYB333K16C 246 CKSQYB473K16C 250 CCSRCH471J50

Unit Number : EWM1021Unit Name : Deck Unit

MISCELLANEOUS

IC 251 IC CXA2559QIC 351 IC PA2020AD 352 Diode 1SS355

RESISTORS




D

R 272 RS1/16S102JR 273 RS1/16S102JR 274 RS1/16S102JR 281 RS1/8S0R0JR 282 RS1/8S0R0J

R 283 RS1/8S0R0JR 284 RS1/8S0R0JR 285 RS1/16S0R0JR 286 RS1/16S0R0JR 287 RS1/8S0R0J

R 290 RS1/8S0R0JR 301 RS1/16S183JR 302 RS1/16S163JR 303 RS1/16S163JR 304 RS1/16S163J

R 305 RS1/16S163JR 323 RS1/8S0R0JR 351 RS1/16S102JR 352 RS1/16S102JR 353 RS1/16S102J

R 354 RS1/16S102JR 355 RS1/10S274JR 362 RS1/8S181JR 373 RS1/8S0R0JR 374 RS1/8S0R0J

R 401 RS1/16S472JR 402 RS1/16S163JR 403 RS1/16S823J

CAPACITORS

C 251 CKSRYB331K50C 252 CKSRYB331K50C 253 CKSRYB331K50C 254 CKSRYB331K50C 255 CKSRYB103K25

C 256 CKSRYB103K25C 272 CKSQYB104K16C 273 CEJA220M16C 301 CKSYB104K50C 302 CKSYB104K50C 313 CCSQCH101K50C 351 CKSYB224K25C 352 CKSQYB392K50C 353 CKSQYB103K50C 354 CKSQYB103K50

C 355 CKSYB104K50C 356 CKSQYB103K50C 401 CKSQYB334K16C 402 CKSQYB472K50C 403 CKSQYB683K16

Unit Number :Unit Name : PCB Unit

S 1 Switch (Load) ESG1004EGN 1 Photo-Interrupter EGN1005

Unit Number :Unit Name : Reel PCB

EGN 2 Photo-Interrupter EGN1006EGN 3 Photo-Interrupter EGN1006

Miscellaneous Parts List

M 1 Motor Unit (Main) EXA1490M 2 Motor Unit (Sub) EXA1485HD 1 Head Assy EXA1506

38

KEH-P4800,P4850

E


F

39

KEH-P4800,P4850

FM

/AM

TU

NE

R U

NIT

4Ω

4Ω

Lch +

Lch -

Rch +

Rch -

BACK UP

ACC

GND

+14.4V

GND

AntennaJack

mV Meter (1) Oscilloscope

DC RegulatedPower Supply

TUNER AMP UNIT

50 Ω(75Ω )

FM SSG StereoModulator

50Ω (37.5Ω )Antenna Plug

Dummy AntennaD

EC

K U

NIT

VR401

DC V Meter(2)

SIDE B

FM/AM TUNER UNIT (TOP VIEW)

T31

T51

C63

T51 CenterMeter

FM/AM TUNER UNIT (BOTTOM VIEW)

Pin1

Pin13

Pin14

Pin 19

Pin26L2

L4

L5

VR154

TC1

DC VMeter(1)

Q402 EMITTER

6. ADJUSTMENT- Connection Diagram

40

KEH-P4800,P4850

Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)

NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow the circuits to stabilize.

FM ADJUSTMENT(UC MODEL)

FM SSG Displayed Adjustment Adjustment MethodNo. Frequency(MHz) Level(dBf) Frequency(MHz) Point (Switch Position)

TUN Volt 1 ••••• ••••• 107.9 L5 DC V Meter(1) : 6VIF 2 98.1 M 60—100 98.1 T51 Center Meter : 0ANT Coil 3 98.1 M 5 98.1 L2 mV Meter(1) : MaximumRF Coil 4 98.1 M 5 98.1 L4 mV Meter(1) : MaximumIFT 5 98.1 M 5 98.1 T31 mV Meter(1) : Maximum

(STEREO MODE)ARC 6 98.1 S 40 98.1 VR154 mV Meter(1) : Separation 5dB

(STEREO MODE)

FM ADJUSTMENT(ES MODEL)

FM SSG Displayed Adjustment Adjustment MethodNo. Frequency(MHz) Level(dBf) Frequency(MHz) Point (Switch Position)

TUN Volt 1 ••••• ••••• 108.0 L5 DC V Meter(1) : 6VIF 2 98.1 M 60—100 98.1 T51 Center Meter : 0ANT Coil 3 98.1 M 5 98.1 L2 mV Meter(1) : MaximumRF Coil 4 98.1 M 5 98.1 L4 mV Meter(1) : MaximumIFT 5 98.1 M 5 98.1 T31 mV Meter(1) : Maximum

(STEREO MODE)ARC 6 98.1 S 40 98.1 VR154 mV Meter(1) : Separation 5dB

(STEREO MODE)

41

KEH-P4800,P4850

7. GENERAL INFORMATION7.1 PARTS7.1.1 ICCXA2559Q

42

KEH-P4800,P4850

- Pin Functions(PD4973A)Pin No. Pin Name I/O Format Function and Operation

1 ASENBO O C Slave power supply control output2 NC Not used3 ADPW O C A/D converter power output4 AVSS GND5 swvdd O C Grille power supply control output6 st I FM stereo input7 AVREF1 D/A converter standard voltage8 KYDT I Grille MicroComputer data input9 DPDT O C Grille MicroComputer data output

10 NC Not used11 TUNPDI I PLL IC data input12 TUNPDO O C PLL IC data output13 TUNPCK O C PLL IC clock output14 TUNPCE O C PLL IC chip enable output

15,16 NC Not used17 TX O C IP BUS data output

18,19 NC Not used20 DIMMER O C Dimmer select output21 DRELAY O C Detach alarm relay output22 VST O C Strobe pulse output for electronic volume23 VCK O C Clock output for electronic volume24 VDT O C Data output for electronic volume25 LCDPW O C LCD back light power supply control output26 ILMPW O C Illumination power supply control output27 DRSENS I Door open/close sense input28 DRSYS O C Door system select output29 FM O C FM power control output30 AM O C AM power control output31 CM O C Cassette mechanism capstan motor control output32 NC Not used33 VSS GND34 SC2 O C Cassette mechanism sub motor control output35 SC1 O C Cassette mechanism sub motor control output36 MSIN I Cassette mechanism MS sense input37 RIMUTE O N RI output port38 mtlsw I Metal sense input39 dled O N Alarm LED output40 n/R O C Normal reverse output41 PLAY O C Tape MS filter select output42 loadsw I Tape loading input43 POS I Cassette mechanism position sense input44 RES I Cassette mechanism reverse end sense input45 PEE O C Beep tone output46 NES I Cassette mechanism forward end sense input47 NC Not used48 STBY O C Stand-by output

49–52 NC Not used53 SD I SD input 54 mute O C Mute output55 SYSPW O C System power supply control output

56–59 NC Not used60 RESET I Reset input61 RX I IP BUS data input62 NC Not used63 dsens I Grille detach sense input64 TELIN I TEL mute signal input65 asens I ACC power sense input66 bsens I Back up power sense input67 CLKIN I Clock input

43

KEH-P4800,P4850

IC's marked by* are MOS type.Be careful in handling them because they are veryliable to be damaged by electrostatic induction.

Format MeaningC C MOSN N Channel open drain

*PD6278A

16

1732

33

48

49 64

1

Pin No. Pin Name I/O Format Function and Operation68 VDD VDD69 X2 Oscillator output70 X1 Oscillator input71 IC Connect to GND72 XT2 Sub Clock terminal73 TESTIN I Test program mode input74 AVDD A/D converter analog power supply (VDD)75 AVREF0 I A/D converter standard voltage input76 SL I Signal level input77 MODEL0 I Model select input78 MODEL1 I Model select input

79,80 NC Not used

801

20

21 40

41

60

61

*PD4973A

44

KEH-P4800,P4850

- Pin Functions (PD6278A)Pin No. Pin Name I/O Function and Operation

1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD common output 10 V3 LCD drive power supply

11-14 KS4-1 O Key strobe output15,16 KD1,2 I Key data input (analogue input)

17 REM I Remote control reception18 RXD I System micro computer UART communication data input19 rst I System reset20 TXD O System micro computer UART communication data output21 MODA GND22 X0 Crystal oscillator connection pin23 X1 Crystal oscillator connection pin24 VSS GND

25,26 KD3,4 I Key data input27,28 KS6,5 O Key strobe output29-55 SEG39-13 O LLCD segment output

56 VCC Power supply57-64 SEG12-5 O LCD segment output

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

1516171819202122232425262728

Vref IN1_L IN2_L IN3_L IN4+_L AGND Loud- out_L

SVin_L Front- out_L

Rear- out_L

FIE_L DGNDIN4-_L CLK

VCC IN1_R IN2_R IN3_R IN4+_R AGNDLoud- out_R SVin_R

Front- out_R

Rear- out_R FIE_R STBIN4-_R DATA

Isolator circuit

Primary volume

Anti Alias filter

Treble

Anti radiation filter

Middle Bass

Loudness volume

FIE

Fadervolume

Secondary volume

Zero crossdetect circuit

Primary volume

Anti Alias filter

Middle

Treble

Bass

Isolator circuit

Anti radiation filter

Loudness volume

Zero crossdetect circuit

Fadervolume

Secondary volume

FIE

Digital block

Auto-Zero

Auto-Zero

PML003AM

45

KEH-P4800,P4850

7.1.2 DISPLAY

- CAW1543

CO

MM

ON

SE

GM

EN

T

47

KEH-P4800,P4850

7.3 BLOCK DIAGRAM

BA

D

F

E

C

48

KEH-P4800,P4850

8. OPERATIONS AND SPECIFICATIONS

+

1.T

his

Un

it

11.F

use

3.A

nte

nn

aja

ck

2.R

ear

ou

tpu

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8.To

elec

tric

term

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con

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by

ign

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nsw

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(12

VD

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/OFF

.

12.C

on

nec

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gco

rds

wit

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CA

pin

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gs

(so

ldse

par

atel

y)

13.B

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wh

ite

14.S

yste

mre

mo

teco

ntr

ol

15.T

osy

stem

con

tro

lter

min

alo

fth

ep

ow

eram

po

rA

uto

-an

ten

na

rela

yco

ntr

olt

erm

inal

.(M

ax.3

00m

A12

VD

C)

16.P

ow

eram

p(s

old

sep

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ely)

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ear

20.R

ear

≠

+ ≠

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seth

isfo

rco

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on

sw

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pa-

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veh

icle

(met

al)

bo

dy.

+

20.R

ear

20.R

ear

≠

+ ≠

+

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eft

spea

ker

18.R

igh

tsp

eake

r

19.F

ron

t

+

19.F

ron

t

≠

+ ≠

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lack

7.R

ed

9.Ye

llow

21.W

hit

e

22.W

hit

e/b

lack

23.G

ray

24.G

ray/

bla

ck

25.G

reen

26.G

reen

/bla

ck

27.V

iole

t

28.V

iole

t/b

lack

29.W

ith

a2

spea

ker

syst

em,

con

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tto

the

2sp

eak-

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ote

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53

KEH-P4800,P4850

GeneralPower source .......... 14.4 V DC (10.8 – 15.1 V allowable)Grounding system ........................................ Negative typeMax. current consumption ........................................ 8.5 ADimensions

(DIN) (chassis) ...... 178 (W) × 50 (H) × 155 (D) mm(nose) ............ 188 (W) × 58 (H) × 19 (D) mm

(D) (chassis) ...... 178 (W) × 50 (H) × 160 (D) mm(nose) ............ 170 (W) × 48 (H) × 14 (D) mm

Weight ...................................................................... 1.2 kg

AmplifierContinuous power output is 17 W per channel min. into 4ohms, both channels driven 50 to 15,000 Hz with no morethan 5% THD.Maximum power output ...................................... 40 W × 4Load impedance .......................... 4 Ω (4 – 8 Ω allowable)Preout maximum output

level/output impedance ...................... 2.2 Vp-p/1 kΩEqualizer (3 band equalizer)

(Low) .............................................................. ±12 dB(Mid) .............................................................. ±12 dB(High) .............................................................. ±12 dB

Loudness contour(Low) .................. +3.5 dB (100 Hz), +3 dB (10 kHz)(Mid).................. +10 dB (100 Hz), +6.5 dB (10 kHz)(High).................. +11 dB (100 Hz), +11 dB (10 kHz)

(volume: –30 dB)

Cassette playerTape ........................ Compact cassette tape (C-30 – C-90)Tape speed ........ 4.76 cm/sec.(+0.14cm/sec.,-0.05cm/sec.)Fast forward/rewinding time .... Approx. 100 sec. for C-60Wow & flutter .......................................... 0.09% (WRMS)Frequency response .......... Metal: 30 – 16,000 Hz (±3 dB)Stereo separation ...................................................... 45 dBSignal-to-noise ratio .................... 61 dB (IEC-A network)

FM tunerFrequency range(UCmodel) ..................87.5 – 107.9 MHz

(ESmodel) ........................................ 87.5 – 108 MHzUsable sensitivity .................................................... 11 dBf

(1.0 µV/75 Ω, mono, S/N: 30 dB)50 dB quieting sensitivity .... 16 dBf (1.7 µV/75 Ω, mono)Signal-to-noise ratio ...................... 70 dB (IEC-A network)Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)Frequency response ...................... 30 – 15,000 Hz (±3 dB)Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)Selectivity(UCmodel) ......................................70dB(2ACA)Three-signal intermodulation(UCmodel)

(desired signal level) ..........................................50dBf(two undesire signal level : 100 dBf)

AM tunerFrequency range ........................ 531 – 1,602 kHz (9 kHz)

(ESmodel) 530 – 1,710 kHz (10 kHz)Usable sensitivity .............................. 18 µV (S/N: 20 dB)Selectivity (ESmodel) ................................ 50 dB (±9 kHz)

50 dB (±10 kHz)

Note:• Specifications and the design are subject to

possible modification without notice due toimprovements.

8.2. SPECIFICATIONS

ORDER NO. CRT2261 KEH-P4800 MULTI-CD CONTROL HIGH … · -See the separate manual CX-631(CRT1640)...

Documents

Transcript of ORDER NO. CRT2261 KEH-P4800 MULTI-CD CONTROL HIGH … · -See the separate manual CX-631(CRT1640)...