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ORDER NO.
CRT2234
MOBILE NAVIGATION SYSTEM
AVIC-505 US,EW
- See the separate manual CX-597(CRT1829) for the CD mechanism description, disassembly and circuit
description.
- The CD mechanism employed in this model is one of S7 series.
CONTENTS
1. SAFETY INFORMATION ............................................2 7.2 DIAGNOSIS ........................................................86
2. EXPLODED VIEWS AND PARTS LIST.......................4 7.2.1 DISASSEMBLY..........................................86
3. SCHEMATIC DIAGRAM ...........................................12 7.2.2 TEST MODE...............................................88
4. PCB CONNECTION DIAGRAM ................................42 7.2.3 TEST MODE (MAIN UNIT)........................90
5. ELECTRICAL PARTS LIST ........................................52 7.2.4 HOW TO USE THE TEST DISC.................92
6. ADJUSTMENT..........................................................61 7.3 EXPLANATION ...................................................95
7. GENERAL INFORMATION .......................................66 7.3.1 CIRCUIT DESCRIPTIONS ..........................95
7.1 IC ........................................................................66 7.3.2 BLOCK DIAGRAM .....................................96
8. OPERATIONS AND SPECIFICATIONS ....................98
PIONEER ELECTRONIC 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 ELECTRONIC CORPORATION 1999 K-FZA. JAN. 1999 Printed in Japan
AVIC-505
- CD Player Service Precautions
1. For pickup unit(CXX1230) handling, please refer 2. During disassembly, be sure to turn the power off
to"Disassembly"(CX-597 Service Manual CRT1829). since an internal IC might be destroyed when a
During replacement, handling precautions shall be connector is plugged or unplugged.
taken to prevent an electrostatic discharge(protection 3. Please checking the grating after changing the
by a short pin). service pickup unit(see page 64).
1. SAFETY INFORMATION
1.1 AVIC-505/US
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
2
AVIC-505
1.2 AVIC-505/EW
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.