Pioneer CDX-M1026ZG Service Manual
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Pioneer CDX-M1026ZG Service Manual

Multi-compact disc player
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Service
Manual
MULTI-COMPACT DISC PLAYER
CDX-M1026
VEHICLE
DESTINATION
Oldsmobile,
U.S.A., CANADA
Buick, Pontiac
- See the separate manual CX-653(CRT1916) for the CD mechanism description, disassembly and circuit
description.
- The CD mechanism employed in this model is one of C6 series.
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................28
6. ADJUSTMENT..........................................................31
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1999
GM
PRODUCED AFTER
February 1999
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
ZG
GM PART No.
ID No.
25659167
7. GENERAL INFORMATION .......................................39
7.1 IC .........................................................................39
7.2 DIAGNOSIS ........................................................41
7.2.1 DISASSEMBLY............................................41
7.2.2 TEST MODE ................................................43
8. OPERATIONS AND SPECIFICATIONS.....................45
K-ZZD. FEB. 1999 Printed in Japan
ORDER NO.
CRT2290
X1H/UC
PIONEER MODEL No.
CDX-M1026ZG/X1H/UC

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Summary of Contents for Pioneer CDX-M1026ZG

  • Page 1: Table Of Contents

    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 ELECTRONIC CORPORATION 1999 K-ZZD. FEB. 1999 Printed in Japan...
  • Page 2 CDX-M1026ZG - CD Player Service Precautions 2. During disassembly, be sure to turn the power off 1. For pickup unit(Service)(CXX1235) handling, please since an internal IC might be destroyed when a con- refer to"Disassembly"(see page 42). nector is plugged or unplugged.

  • Page 3: Safety Information

    CDX-M1026ZG 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.

  • Page 4: Exploded Views And Parts List

    CDX-M1026ZG 2. EXPLODED VIEWS AND PARTS LIST 2.1 EXTERIOR...
  • Page 5 CDX-M1026ZG NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to - EXTERIOR SECTION PARTS LIST Mark No. Description Part No.
  • Page 6 CDX-M1026ZG 2.2 CD MECHANISM MODULE...
  • Page 7 CDX-M1026ZG - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw CBA1369 46 Arm CNC6799 2 CD Core Unit CWX2014 47 Holder CNC6819 48 Holder CNC6827 3 Connector(CN701) CKS1968 4 Connector(CN801)
  • Page 8 CDX-M1026ZG Mark No. Description Part No. Mark No. Description Part No. 91 Lever Unit CXB2493 106 Plate CNC7076 × 92 Bracket Unit CXA9215 107 Screw(M2 2.5) CBA1041 93 Magazine Holder Unit CXB2579 108 Screw JGZ17P022FZK 94 Frame Unit CXB2271 109 Spring...

  • Page 9: Block Diagram And Schematic Diagram

    CDX-M1026ZG 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM CD CORE UNIT MAIN PCB PICKUP UNIT (SERVICE) PHOTO PCB PCB UNIT SWITCH PCB MOTOR PCB OPEN PCB CLOSE PCB...
  • Page 10 CDX-M1026ZG 3.2 CD MECHANISM MODULE(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram Guide page Detailed page CCP1175 CXB1395 CXB1394 CXB1142 CXB2056...
  • Page 11 CDX-M1026ZG C209 100P R301 3R3K...
  • Page 12 CDX-M1026ZG...
  • Page 13 CDX-M1026ZG A-a C D E F...
  • Page 14 CDX-M1026ZG...
  • Page 15 CDX-M1026ZG...
  • Page 16 CDX-M1026ZG Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage - Waveforms REFO:2.5V 1 RFO 1 CH1: RFO 1 CH1: RFO 0.5V/div. 0.5µs/div. 1V/div. 1V/div. 0.5ms/div 0.5ms/div 2 CH2: MIRR 2 CH2: MIRR Normal mode: play 5V/div.
  • Page 17 CDX-M1026ZG 0 MDYA 8 CH1: TEY 8 CH1: TEY 0.5V/div. 0.1s/div. 0.2V/div. 0.5V/div. 5ms/div. 20ms/div. 9 CH2: TD ! CH2: SD 0.2V/div. 0.5V/div. Normal mode: Play (12cm) Normal mode: play → REFO → REFO → REFO → → REFO REFO...
  • Page 18 CDX-M1026ZG 8 CH1: TEY 0.2V/div. 1 CH1: RFO 3 CH1: FD 1V/div. 1V/div. 1ms/div. 0.5ms/div 0.5ms/div ^ CH2: HOLD 9 CH2: TD ^ CH2: HOLD 5V/div. 0.5V/div. 5V/div. Normal mode: During AGC Normal mode: The defect part passes Normal mode: The defect part passes 800µm...
  • Page 19 CDX-M1026ZG...
  • Page 20 CDX-M1026ZG 3.3 EXTENSION UNIT MAIN PCB...
  • Page 21 CDX-M1026ZG CN1102 4.6V EXTENSION UNIT Consists of MAIN PCB CLOSE PCB OPEN PCB OPEN PCB CLOSE PCB...

  • Page 22: Pcb Connection Diagram

    CDX-M1026ZG 4. PCB CONNECTION DIAGRAM SIDE A 4.1 CD CORE UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.
  • Page 23 CDX-M1026ZG SIDE B...
  • Page 24 CDX-M1026ZG 4.2 MAIN PCB SIDE A MAIN PCB CN1801 CN701 CN1802...
  • Page 25 CDX-M1026ZG SIDE B MAIN PCB...
  • Page 26 CDX-M1026ZG 4.3 PHOTO PCB SIDE A HOME S853 SPINDLE M851 PHOTO PCB Q851 CARRIAGE CN801 M854 4.4 PCB UNIT PCB UNIT 4.5 MOTOR PCB MOTOR PCB...
  • Page 27 CDX-M1026ZG 4.6 SWITCH PCB SWITCH PCB 4.7 CLOSE PCB CN1702 CLOSE PCB CLOSE 4.8 OPEN PCB SIDE A SIDE B OPEN PCB OPEN PCB OPEN IL1801 CN1702...

  • Page 28: Electrical Parts List

    CDX-M1026ZG 5. ELECTRICAL PARTS LIST NOTES: - 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___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
  • Page 29 CDX-M1026ZG =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB102K50 1701 Inductor LCTB1R0K3216 CKSQYB224K16 1771 Inductor CTF1418 CCSRCH101J50 1772 Inductor LCTB1R0K2125 CEV101M10 1901 Choke Coil 1.4mH CTH1129 CKSQYB224K16 1701 Radiator 6.290MHz...
  • Page 30 CDX-M1026ZG =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1754 RS1/10S101J 1723 CCSQCH101J50 1755 RS1/10S511J 1724 CCSQCH101J50 1756 RS1/10S101J 1725 CCSQCH101J50 1771 RS1/10S103J 1726 CCSQCH101J50 1772 RS1/10S103J 1771...

  • Page 31: Adjustment

    CDX-M1026ZG 6. ADJUSTMENT 6.1 CONNECTION DIAGRAM CDX-M1026ZG/X1H/UC DC 9–16V DC Regulated Power Supply Extension Cable(CDN-960) CMD. BOX(CEP-323)
  • Page 32 CDX-M1026ZG 6.2 CD ADJUSTMENT 1)Precautions • This unit uses a single power supply (+5V) for the reg- • Resetting the test mode ulator. The signal reference potential, therefore, is DC Regulated Power Supply power OFF. connected to REFO(approx. 2.5V) instead of GND.
  • Page 33 CDX-M1026ZG 6.3 CHECKING THE GRATING - Checking the Grating After Changing the Pickup Unit •Note : Unlike previous CD mechanism modules the grating angle of the pickup unit cannot be adjusted after the pickup unit is changed. The pickup unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted pickup unit for the CD mechanism module.
  • Page 34 CDX-M1026ZG Grating waveform Ech t Xch 20mV/div, AC Fch t Ych 20mV/div, AC 0° 30° 45° 60° 75° 90°...
  • Page 35 CDX-M1026ZG 6.4 ADJUSTMENT OF ELEVATION WHEN THE CD CORE UNIT HAS BEEN REMOVED FOR MAINTENANCE •Note : Unlike the conventional mechanisms, the new mechanism detects the height of the stage using slide-variable resistance. To absorb dislocation of the stage height caused by differences in the mechanism and the CD core unit, adjust- ment must be made for each CD-mechanism module using a variable resistor.
  • Page 36 CDX-M1026ZG Examples of display 4. Press key 5 to set ELV/TRAY mode to TRAY. 01' 02" 5. Press key TR+ to release the clamp and return the tray to the magazine. Release the clamp 6. Press key 5 to enter Elevation Move mode.
  • Page 37 CDX-M1026ZG 12. To see the amount of dislocation, place the mechanism upside-down. VR802 If the stopper bend has been dislocated in the direction of the sev- enth CD, turn VR802 to the left(Fig. 2). EREF To lower the stage toward the twelfth step by 0.1 mm, reduce the voltage of EREF (adjusted in step 8) by 20 mV.
  • Page 38 CDX-M1026ZG Frame stopper Stopper bend of the clamp lever Dislocated toward the seventh CD. Fig. 2 Adjust to the graduation of the R mark. Fig. 1 Engaged in the center and pressed downward. Fig. 3 Dislocated toward the twelfth CD.

  • Page 39: General Information

    CDX-M1026ZG 7. GENERAL INFORMATION 7.1 IC - Pin Functions (PD5392C) Pin No. Pin Name Format Function and Operation VDIN Power supply short sensor input DORILM Eject door illumination output 3–5 Not used Control signal distinguishing data from microcomputer XSCK LSI clock input/output...
  • Page 40 CDX-M1026ZG Pin No. Pin Name Format Function and Operation VREF A/D converter reference voltage input AVSS (A/D converter GND) BSENS Back up sense input ELV position switch input DISK Disc detector and 8/12cm detect EPVO Slide voltage input for ELV detector...

  • Page 41: Diagnosis

    CDX-M1026ZG 7.2 DIAGNOSIS 7.2.1 DISASSEMBLY Cover Upper Case Removing the Upper Case(Fig.5) Remove the three screws, and then remove the Cover. Remove the ten screws, and then remove the Upper Case. Fig.5 Removing the CD Mechanism Module (Fig.6) 1. Remove the four dampers.
  • Page 42 CDX-M1026ZG Removing the Pickup Unit(Fig.8) 1.Attach the Short Pin onto the Flexible PCB of the Pickup Unit.(Fig.8) 2.Remove the Flexible PCB from the connector.(Fig.8) 3.Remove the Torsion Spring which is pressed against the leading edge of the Feed Screw.(Fig.9) 4 Remove the Screw and Pulley Cover.(Fig.9) 5.Remove the Belt and the Pickup Unit with the Feed Screw...

  • Page 43: Test Mode

    CDX-M1026ZG 7.2.2 TEST MODE - Flow Chart 1. Setup the POWER switch ON and PMM switch RUN of CEP-323. 2. DC Regulated Power Supply power ON. 3. Pressing the RESET switch of CEP-323. 4. Wait for 10 seconds. 5. Pressing the TESTIN switch of CEP-323.

  • Page 44: Connector Function Description

    CDX-M1026ZG 7.2.3 CONNECTOR FUNCTION DESCRIPTION FUNCTION COMMON DRAIN BATT CLASS CLASS...

  • Page 45: Operations And Specifications

    CDX-M1026ZG 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATION DOOR 8.2 SPECIFICATIONS General Power source ..................13.8 V DC (9.0 – 16.0 V allowable) Grounding system ........................Negative type Dimensions ....................261 (W) × 94 (H) × 191 (D) mm Weight ..............................2.3 kg CD player System ......................

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