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Service
Manual ORDER NO.
CRT2708
DVD NAVIGATION UNIT
AVIC-8DVD EW
- This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-954 CRT2670 MS2 DVD Mech. Module:Circuit Description, Mech.Description, Disassembly
- This product has the unit part numbers as below.
Unit Part No. Description
CPN1745 Main Assy
*) The unit part numbers listed above are not for the service components.
- For your inspection, the following extention cords are supplied. Use them if necessary.
part to use Part No.
Main PCB (CN3251) <--> DVD Core Unit R (CN1701) GGD1170
Main PCB (CN3254) <--> CC Unit (CN302) GGD1264
Main PCB (CN3901) <--> Interface PCB (CN5004) GGD1171
Main PCB (CN552) <--> GPS Unit (CN461) GGD1265
CC Unit (CN2) <--> DVD Core Unit R (CN1401) GGD1268
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 EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001 K-ZZY. JUNE 2001 Printed in Japan
AVIC-8DVD
- DVD Player Service Precautions
1. Never adjust the LD VR in the pickup unit to protect the pickup from electrical damages.
2. For pickup unit(service)(CXX1530) handling, please refer to"Disassembly"(see page 143).
During replacement, handling precautions shall be taken to prevent an electrostatic discharge(set the short switch
of the pickup unit to the SHORT side).
3. During disassembly, be sure to turn the power off since an internal IC might be destroyed when a connector is
plugged or unplugged.
4. Please adjusting the skew after changing the pickup unit(see page 118).
- High voltage is generated in the inverter when the power is supplied to the system. To avoid an electric shock,
reconfirm that the power switch is set to OFF before starting operation.
- Check of installation direction when G-Sensor Unit was after repair.
Forward / Aft direction of vehicle Lock-screw
Front
Parallel Parallel
Front
Lock-screw
Lever
Forward / Aft direction
Lever of vehicle
CONTENTS
1. SAFETY INFORMATION ............................................2 7. GENERAL INFORMATION .....................................120
2. EXPLODED VIEWS AND PARTS LIST .......................6 7.1 DIAGNOSIS ......................................................120
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12 7.1.1 TEST MODE ............................................120
4. PCB CONNECTION DIAGRAM ................................82 7.1.2 USING THE TEST MODE .......................136
5. ELECTRICAL PARTS LIST ........................................98 7.1.3 DISASSEMBLY .......................................143
6. ADJUSTMENT........................................................114 7.1.4 CONNECTOR FUNCTION DESCRIPTION .....146
7.2 IC ......................................................................147
7.3 EXPLANATION .................................................166
7.3.1 CIRCUIT DESCRIPTION..........................166
7.3.2 OPERATIONAL FLOW CHART ...............167
8. OPERATIONS AND SPECIFICATIONS...................168
1. SAFETY INFORMATION
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.
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.
1. Safety Precautions for those who Service this Unit.