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Pioneer KEH-P4020 Service Manual

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See also: Owner's Manual , Operating Manual
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P4020
KEH-P4022
KEH-P4025
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-1011
CRT2406
NOTE:
-
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.
CONTENTS
PIONEER CORPORATION
PIONEER ELECTRONICS ( USA ) INC.
PIONEER EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2001
Mech. Module Remarks
3L
Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
2
2
8
18
27
32
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
XM/EE
XM/ES
7.2.1 IC
ORDER NO
CRT2763
XM/UC
K-ZZT. NOV. 2001 Printed in Japan
33
33
33
34
35
35
40
41
42

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Summary of Contents for Pioneer KEH-P4020

  • Page 1: Table Of Contents

    PIONEER ELECTRONICS ( USA ) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2001 K-ZZT. NOV. 2001 Printed in Japan...

  • Page 2: Safety Information

    1. SAFETY INFORMATION KEH-P4020/XM/UC CAUTION 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.
  • Page 3 NOTE - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - PACKING SECTION PARTS LIST KEH-P4020/XM/UC Mark No. Description Part No. Mark No. Description Part No. 1 Carton CZH5581 11 Polyethylene Bag CZE2908 2 Owner’s Manual...
  • Page 4 2.2 EXTERIOR...
  • Page 5 78 Holder CNC9131 39 Button(EJECT) CZA5553 40 Panel Assy CZX5519 (2)CONTRAST TABLE KEH-P4020/XM/UC,KEH-P4022/XM/EE and KEH-P4025/XM/ES have the same cuntruction except for the following: Part No. Mark No. Symbol and Description KEH-P4020/XM/UC KEH-P4022/XM/EE KEH-P4025/XM/ES C Z X 5 5 3 5...
  • Page 6 2.3 CASSETTE MECHANISM MODULE...
  • Page 7 - CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 31 Lever ENV1551 2 Washer CBF1037 32 Flywheel ENV1554 3 Washer CBG1003 33 PCB ENP1196 4 Screw EBA1028 34 Switch(S101,102) ESG1007 5 Screw CBA1037...

  • Page 8: Block Diagram And Schematic Diagram

    3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM...
  • Page 10 3.2 OVERALL CONNECTION DIAGRAM...

  • Page 12: Keyboard Unit

    3.3 KEYBOARD UNIT...
  • Page 14 3.4 PANEL PCB UNIT...
  • Page 16 3.5 CASSETTE MECHANISM MODULE DECK UNIT Vref CN252 C256 Rev-L Rev-R NFI(R) MUTE 120/70 Vref1 IC251 ser/REP RIN(L) Fwd-R HA12229F RIN(R) MSOUT Fwd-L R404 MSDET FIN(R) C404 Vref2 EQ AMP R403 FIN(L) MAOUT MSGV(R) NFI(L) HEAD ASSY EXA1589 TEST TAPE NCT-150 C255 (400Hz, 200nWb/m)
  • Page 17 MOTOR UNIT M1 MOTOR UNIT (SUB MOTOR) (MAIN MOTOR) EXA1580 EXA1621 SENSOR UNIT CN254 CN253 CN255 CN256 REEL SENSE Q101 EGN1004 L102 L101 MOTOR ESG1007 S102 MODE DRIVER load ESG1007 S101 LOAD C351 OUT1 OUT2 C354 C405 R033 PGND C355 VCC1 PSO3 VCC2...

  • Page 18: Pcb Connection Diagram

    4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for sev- eral destination. For further information for respec- tive destinations, be sure to check with the schematic diagram. 2.
  • Page 19 SIDE A FRONT...
  • Page 20 FRONT...
  • Page 21 SIDE B...
  • Page 22 4.2 KEYBOARD UNIT...
  • Page 23 SIDE A SIDE B...
  • Page 24 4.3 PANEL PCB UNIT SIDE A SIDE B...
  • Page 25 4.4 CASSETTE MECHANISM MODULE SIDE A CN300 DECK UNIT CN251 C271 SIDE B DECK UNIT HEAD ASSY IC,Q C351 VR302 C354 VR302 CN255 CN254 C256 CN253 CN252 C404 R403 R402 IC351 IC351 IC251 R401 IC251 R404 C405 C403 C355 C402 C359 C401 C360...
  • Page 26 SENSOR UNIT S101 LOAD S103 70µs S102 MODE L101 CN256 L102 CN253 Q101 REEL SENSE...

  • Page 27: Electrical Parts List

    CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number :CZW5524(KEH-P4020/XM/UC) Diode 1SS133 CZW5527(KEH-P4025/XM/ES) Diode DAN202K CZW5529(KEH-P4022/XM/EE) Diode See Contrast table Unit Name : Tuner Amp Unit...
  • Page 28 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S473J RS1/16S682J RS1/16S102J RS1/16S103J RD1/4PU101J RS1/16S102J RD1/4PU101J RD1/4PU102J RS1/16S620J RD1/4PU102J RS1/16S223J RD1/4PU102J RS1/16S472J RS1/16S102J RS1/16S473J RS1/16S182J RS1/16S102J RS1/16S182J See Contrast table RS1/16S222J RS1/16S0R0J RD1/4PU103J...
  • Page 29 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU222J See Contrast table RD1/4PU222J See Contrast table RD1/4PU222J CEAL220M16 RS1/16S472J CEAL220M16 RS1/16S473J CKSRYB105K10 RS1/16S473J CKSRYB105K10 RS1/16S222J CKSRYB105K10 RD1/4PU222J CKSRYB105K10 RS1/16S223J CKSRYB224K10 RS1/16S104J...
  • Page 30 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : CZW5525 (KEH-P4020/XM/UC) See Contrast table (KEH-P4022/XM/EE) See Contrast table CZW5528 (KEH-P4025/XM/ES) RS1/16S100J Unit Name : Keyboard Unit RS1/16S393J RA2S471J...
  • Page 31 Photo-reflector EGN1004 Switch(LOAD) ESG1007 Switch(MODE) ESG1007 Inductor CTF1546 Inductor CTF1546 CONTRAST TABLE of TUNER AMP UNIT KEH-P4020/XM/UC,KEH-P4022/XM/EE and KEH-P4025/XM/ES have the same cuntruction except for the following: Part No. Symbol and Description KEH-P4020/XM/UC KEH-P4022/XM/EE KEH-P4025/XM/ES IC500 TA8277H TA8277H PAL007A Q706...

  • Page 32: Adjustment

    6. ADJUSTMENT There is no information to be shown in this chapter.

  • Page 33: General Information

    7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Upper Case(not shown) 1.Remove the Upper Case. Removing the Cassette Mechanism Module(Fig.1) 1 1 Remove the four screws and then remove the Cassette Mechanism Module. Remove the Grille Assy(Fig.1) 2 2 Remove the two screws. Disconnect the two stoppers and then remove the Grille Assy.

  • Page 34: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION...

  • Page 35: Parts

    7.2 PARTS 7.2.1 IC CA0008AM PST3434UL TB2118F...
  • Page 36 PML003AM BA6923FP...
  • Page 37 IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction PD6340A...
  • Page 38 Pin Functions(000974240) Pin No. Pin Name Format Function and Operation SD signal input FM stereo input ADPW A/D converter power supply control output AVSS MUTE System mute output Not used AVREF1 A/D converter reference voltage terminal KYDT Display data input DPDT Key data output Not used...
  • Page 39 000974240...

  • Page 40: Display

    7.2.2 DISPLAY CZA5561...

  • Page 41: Operational Flow Chart

    7.3. OPERATIONAL FLOW CHART...

  • Page 42: Operations And Specifications

    8. OPERATIONS AND SPECIFICATIONS 6 5/∞/2/3 buttons What’s what Press to do manual seek tuning, fast forward, reverse and track search controls. Also used for controlling functions. 1 VOLUME button Press to increase or decrease the volume. 7 LOUDNESS button Press to switch loudness function on or off.
  • Page 45 CONNECTION DIAGRAM...

This manual is also suitable for:

Keh-p4022Keh-p4025

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