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CDX-P1270/X1N/UC
Service
Manual ORDER NO.
CRT2591
MULTI-COMPACT DISC PLAYER
CDX-P1270
CDX-P1270 X1N/EW
X1N/UC
CDX-P1270 X1N/ES
- This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-938 CRT2357 C8 CD Mech. Module:Circuit Description, Mech. Description, Disassembly
CONTENTS
1. SAFETY INFORMATION ............................................3 7. GENERAL INFORMATION .......................................40
2. EXPLODED VIEWS AND PARTS LIST .......................4 7.1 DIAGNOSIS ........................................................40
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...12 7.1.1 TEST MODE ..............................................40
4. PCB CONNECTION DIAGRAM ................................22 7.1.2 DISASSEMBLY .........................................44
5. ELECTRICAL PARTS LIST ........................................28 7.1.3 CONNECTOR FUNCTION DESCRIPTION46
6. ADJUSTMENT..........................................................31 7.2 IC .........................................................................47
7.3 OPERATIONAL FLOW CHART ...........................49
8. OPERATIONS AND SPECIFICATIONS.....................50
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 2000 K-ZZY. DEC. 2000 Printed in Japan
CDX-P1270
- CD Player Service Precautions 2. During disassembly, be sure to turn the power off
1. For pickup unit(CXX1285) handling, please refer since an internal IC might be destroyed when a con-
to"Disassembly"(see page 44). nector is plugged or unplugged.
During replacement, handling precautions shall be 3. Please checking the grating after changing the ser-
taken to prevent an electrostatic discharge(protection vice pickup unit(see page 34).
by a short pin). 4. Since these screws protects the mechanism during
transport, be sure to affix it when it is transported for
repair, etc.
Seal
After removing the transport screw, cover the hole
with the supplied seal.
Transport screw
Attach to the original position before transporting the set.
A transport screw has been attached to the set in order to protect
it during transportation. After removing the transport screw,
cover the hole with the supplied seal. Be sure to remove the
transport screw before mounting the set. The removed transport
screw should be retained in the accessory bag for use the next
time the set is transported.
2
CDX-P1270
1. SAFETY INFORMATION
- CDX-P1270/X1N/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.
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.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
- CDX-P1270/X1N/EW
1. Safety Precautions for those who Service this Unit.