CDX-CA900, CDX-CA900X - Sony Car Audio Service Manual (repair manual). Page 3

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TABLE OF CONTENTS
1. GENERAL
Location of controls (US, Canadian Model) ........................... 4
Location of controls (E Model) ............................................... 4
Connections (US, Canadian Model) ........................................ 5
Connections (E Model) ........................................................... 6
2. DISASSEMBLY
2-1.   Sub Panel Assy .................................................................... 7
2-2.   CD Mechanism Block ......................................................... 8
2-3.   Main Board ......................................................................... 8
2-4.   Heat Sink ............................................................................. 9
2-5.   Chassis (T.U) Assy .............................................................. 9
2-6.   Disc In Board .................................................................... 10
2-7.   Servo Board ....................................................................... 10
2-8.   Shaft Roller Assy, Load Board .......................................... 11
2-9.   Floating Block Assy .......................................................... 11
2-10. Optical Pick-up Block ....................................................... 12
MAIN BOARD CN401
SERVO BOARD CN1
3. DIAGRAMS
3-1.   IC Pin Descriptions ........................................................... 13
3-2.   Circuit Boards Location .................................................... 18
3-3.   Block Diagram –CD Section– ........................................... 19
3-4.   Block Diagram –Tuner Section– ....................................... 20
3-5.   Block Diagram –Display Section– .................................... 21
3-6.   Printed Wiring Boards –CD Mechanism Section– ............ 22
3-7.   Schematic Diagram –CD Mechanism Section– ................ 24
3-8.   Schematic Diagram –Main Section (1/4)– ........................ 25
3-9.   Schematic Diagram –Main Section (2/4)– ........................ 26
3-10. Schematic Diagram –Main Section (3/4)– ........................ 27
3-11. Schematic Diagram –Main Section (4/4)– ........................ 28
3-12. Printed Wiring Board –Relay Section– ............................. 29
3-13. Printed Wiring Board –Main Section– .............................. 30
3-14. Printed Wiring Board –Key Section– ................................ 32
3-15. Schematic Diagram –Key Section– ................................... 33
4. EXPLODED VIEWS
4-1.   Chassis Section ................................................................. 37
4-2.   Main Board Section .......................................................... 38
4-3.   Front panel Section ........................................................... 39
4-4.   CD Mechanism Section (1) ............................................... 40
4-5.   CD Mechanism Section (2) ............................................... 41
4-6.   CD Mechanism Section (3) ............................................... 42
5. ELECTRICAL PARTS LIST
........................................ 43
CDX-CA900/CA900X
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
• Connect the MAIN board (CN401) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-062-1).
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