Pioneer KEH-P4950J Bedienungsanleitung

PIONEER 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. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 1999 K-ZZB. NOV. 1999 Printed in Japan

ORDER NO.

CRT2400

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

KEH-P4950J X1M/ES

Service

Manual

CONTENTS

1. SAFETY INFORMATION ............................................2

2. EXPLODED VIEWS AND PARTS LIST.......................2

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....9

4. PCB CONNECTION DIAGRAM ................................22

5. ELECTRICAL PARTS LIST ........................................31

6. ADJUSTMENT..........................................................36

7. GENERAL INFORMATION .......................................38

7.1 DISASSEMBLY ...................................................38

7.2 PARTS .................................................................39

7.2.1 IC.................................................................39

7.2.2 DISPLAY .....................................................43

8. OPERATIONS AND SPECIFICATIONS.....................44

-This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks

CX-1011 CRT2406 3L Cassette Mech. Module:Mech.Description and Greasing, Disassembly, Adjustment

- 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.

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KEH-P4950J

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair

complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so

and refer the repair to a qualified service technician.

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

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KEH-P4950J

NOTE:

-Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

-Screws adjacent to ∇mark on the product are used for disassembly.

-Owner's Manual, Installation Manual

Part No. Language

CRD3086 English, Arabic

CRD3087 English, Arabic

-PACKING SECTION PARTS LIST

Mark No. Description Part No.

* 1 Accessory Assy CEA2350

2 Spring CBH1650

3 Screw Assy CEA2351

4 Screw CBA1304

* 5 Polyethylene Bag CEG-127

6 Screw CRZ50P090FMC

7 Screw TRZ50P080FMC

* 8 Polyethylene Bag CEG-158

9 Handle CNC5395

10 Bush CNV3930

11 Polyethylene Bag CEG-162

12 Carton CHG3891

13 Contain Box CHL3891

14 Protector CHP2244

15 Protector CHP2243

16-1 Owner’s Manual CRD3086

16-2 Installation Manual CRD3087

17 Cord Assy CDE6222

18 Case Assy CXB3520

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KEH-P4950J

67 16

22 14

15 26

48 46

47 33

56 65

64 61

55 58

2.2 EXTERIOR

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KEH-P4950J

1 Screw BSZ26P050FMC

2 Screw BSZ30P050FMC

3 Screw BSZ30P200FMC

4 Cord Assy CDE6222

5 Fuse(10A) CEK1136

6 Case CNB2350

7 Holder CNC4963

8 Holder CNC5704

9 Cushion CNM5210

10 Insulator CNM5963

11 Panel CNS5132

12 Tuner Amp Unit CWM7027

13 Screw BPZ26P080FMC

14 Screw BSZ26P080FMC

15 Screw BSZ26P160FMC

16 Antenna Cable(CN403) CDH1274

17 Pin Jack(CN301) CKB1035

18 Plug(CN603) CKM1270

19 Connector(CN701) CKS3408

20 Connector(CN602) CKS3568

21 Connector(CN601) CKS3581

22 Panel CNB2491

23 Holder CNC5399

24 Holder CNC6845

25 Holder CNC7996

26 Heat Sink CNR1505

27 Tuner Unit CWE1430

28 Holder CNC6122

29 Holder Unit CXB2687

30 Chassis Unit CXB3012

31 IC(IC302) TDA7384

32 Detach Grille Assy CXB4790

33 Screw BPZ20P100FZK

34 Button(DETACH) CAC5789

35 Button(1-6) CAC6239

36 Button(SOURCE) CAC6241

37 Button(+) CAC6242

38 Button(-) CAC6243

39 Button(AUDIO) CAC6245

40 Button(EQ) CAC6247

41 Button(EJECT) CAC6268

42 Button(BAND) CAC6269

43 Spring CBH2103

44 Cover CNS5635

45 Keyboard Unit CWM7024

46 LCD(LCD1901) CAW1563

47 Connector(CN1901) CKS3580

48 Holder CNC8485

49 Sheet CNM6453

50 Connector CNV5914

51 Lighting Conductor CNV5915

52 Grille Sub Assy CXB5212

53 Button CAC4836

54 Spring CBH1834

55 Spring CBH1835

56 Spring CBH2182

57 Bracket CNC6135

58 Bracket CNC6791

59 Arm CNV4692

60 Arm CNV4693

61 Arm CNV4728

62 Panel Unit CXB4927

63 Door CAT2109

64 Spring CBH1838

65 Screw IMS20P030FZK

66 Cassette Mechanism ModuleEXK4000

67 Screw ISS26P055FUC

68 Transistor(Q904) 2SD2396

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

-EXTERIOR SECTION PARTS LIST

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KEH-P4950J

2.3 CASSETTE MECHANISM MODULE

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KEH-P4950J

1 Screw BSZ20P040FMC

2 Washer CBF1037

3 Washer CBG1003

4 Screw EBA1028

5 Screw EBA1037

6 Spring EBH1531

7 Spring EBH1624

8 Spring EBH1625

9 Spring EBH1626

10 Spring EBH1627

11 Spring EBH1628

12 Cord EDD1024

13 Photo-reflector(EGN1) EGN1004

14 Arm ENC1526

15 Lever ENC1530

16 Lever ENC1531

17 Arm ENC1532

18 Frame ENC1533

19 Holder ENC1534

20 Gear ENC1535

21 Arm ENC1536

22 Roller ENR1040

23 Belt ENT1027

24 Collar ENV1508

25 Arm ENV1539

26 Arm ENV1540

27 Gear ENV1544

28 Gear ENV1547

29 Gear ENV1548

30 Worm Wheel ENV1550

31 Lever ENV1551

32 Flywheel ENV1554

33 Gathering PCB ENX1054

34 Switch(S1,S2) ESG1007

35 Deck Unit EWM1023

36 Plug(CN251) CKS3540

37 Gathering PCB ENX1053

38 Motor Unit(M1) EXA1491

39 Motor EXM1028

40 Head Assy(HD1) EXA1506

41 Motor Unit(M2) EXA1580

42 Screw BMZ20P022FMC

43 Bracket ENC1528

44 Chassis Unit EXA1582

45 Pinch Holder Unit EXA1584

46 Pinch Roller ENV1518

47 Pinch Holder Unit EXA1583

48 Pinch Roller ENV1518

49 Reel Unit EXA1585

50 Head Base Unit EXA1586

51 Lever Unit EXA1587

52 Gear Unit EXA1588

53 Motor Unit(Service) EXX1055

54 Washer HBF-179

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

-CASSETTE MECHANISM MODULE SECTION PARTS LIST

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KEH-P4950J

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IC2 PA4024A

AMVCC

Q201 Q202

AM RF/AGC

FM RF

CF232

T31 Q31 CF51

AM IF

BFM/AM TUNER UNIT

15 13

20 17

FM PROCESSOR

IC1 PA4023B

FM/AM PROCESSOR

FM MIX FM IF FM IF

CF52 FM IF

CF53

15 17 19 47

63832

36 16 18

OSC

OSC VCC

FMVCC

FMTV

AMIFC

VCO

AMTV

T51

FMSD

FMSL

AMSL

31 30 28 40 43

TUNER Lch

IC501

PM2006A

PLL

Q909

Q910

Q907

Q908

VCC

37 38

AMTV

FMTV

AMTV

AMIF

FMVCO

AMVCO

X501

AM FM

Q921

Q920

B.U VDD

Q903

SYSPW

VDD

AVDD

55 74 68

30 FM

SYSTEM

CONTROLLER

PE5087A

IC601(1/2)

PLLDATA

TUN-L

ELECTRONIC VOLUME

PML003AM

IC301 11

BUS-L1

BUS-L2

TAPE-L

Q310

Q309

MUTE

POWER AMP

TDA7384

IC302

MUTE STBY

FL+

FL-

RL+

RL-

22 4

SYSPW B.U

B.U

SYSPW

Q307

Q904 Q911 Q306

Q905

Q901

Q902

MUTE

REGULATOR

RESET

IC602

S-80734AN

VCC

VDD

B.U

ASENBO

IP-BUS DRIVER

IC702

CA0008AM

BUSL+

BUSL-

BUS-

BUS+

Q701

Q702

54 60

66 65

MUTE

RESET

BSENS

ASENS

SWVDD

DPDT

KYDT

DSENS

ASEMBO

MCMUTE

STBY

MTL

LOADSW

SYSTEM

CONTROLLER

IC601(2/2)

PE5087A

X601

Q906

BSENS

ASENS ACC

FUSE

10A

IC901

TPD1018F

B REMOTE

B.U

SYSPW

B.U

STBY

B.U

MUTE

MTL

LOAD 42

63 895

DSENS

Q601

SWVDD

VDD

SW5V

ILL1

KYDT

DPDT

SW5V

VDD SWITCH

FM/AM

ANTENNA

ATUNER AMP UNIT

DDECK UNIT

CKEYBOARD UNIT

853

85346

KEY MATRIX LCD DRIVER

IC1901

PD6278C

DPDT

KYDT

VDD

LCDB

X1901

56 10

22 23

LCD

IC251

CXA2559Q

IC351

PA2020A

EQ AMP

MECHANISM

DRIVER

CN251

CN252

CN254

CN255

CN253

5TAPE+B

Lch

FWD

L-ch

REV

L-ch

18 19

315 6

8710

CN256 315 6

LOAD

MODE

EGN1

REEL

SENSE

SUB

MOTOR

MAIN

MOTOR

EREEL SENSE PCB

CN602

CN701

IP-BUS

CN402

CN301

CN603

CN601

CN1901

VCK/VDT/VST

PDI/PCK/PDO/PCE

ACC

BACK UP

FRONT-L

SPEAKER

REAR-L

SPEAKER

VCC

LOUT

MCMUTE

LDSW

MTL

STBY

1B.REMOTE

KEH-P4950J

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

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FM/AM TUNER UNIT

KEYBOARD UNIT

DECK UNIT

KEH-P4950J

1234

3.2 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-b

A-a

Large size

SCH diagram

Guide page

Detailed page

A-a

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