Table Of Contents - Sony CDX-4250 Service Manual

TABLE OF CONTENTS

1. GENERAL
Location of Controls .................................................................. 4
Getting Started ........................................................................... 4
CD Player .................................................................................. 5
Radio ......................................................................................... 5
Other Functions ......................................................................... 6
Additional Information .............................................................. 7
Connections ............................................................................... 8
2. DISASSEMBLY
2-1. Cover ASSY ........................................................................ 10
2-2. Front Panel ASSY ............................................................... 10
2-3. Display Board ..................................................................... 11
2-4. CD Mechanism Block ......................................................... 11
2-5. Main Board ......................................................................... 12
2-6. Heat Sink ............................................................................. 12
2-7. Chassis (T) Sub ASSY ........................................................ 13
2-8. Lever ASSY ......................................................................... 13
2-9. Servo Board ......................................................................... 14
2-10. Roller ASSY ........................................................................ 14
2-11. Chassis (OP) (O/S) ASSY ................................................... 15
2-12. Optical Pick-up Block ......................................................... 15
3. ELECTRICAL ADJUSTMENTS
Tuner Section ........................................................................... 16
CD Section .............................................................................. 18
4. DIAGRAMS
4-1. IC Pin Description ............................................................... 19
4-2. Circuit Boards Location ...................................................... 21
4-3. Printed Wiring Boards -CD Mechanism Section- .............. 23
4-4. Schematic Diagram -CD Mechanism Section- .................. 25
4-5. Printed Wiring Board -Display Section- ............................ 27
4-6. Schematic Diagram -Display Section- ............................... 29
4-7. Printed Wiring Board -Main Section- ................................ 31
4-8. Schematic Diagram -Main Section (1/2)- .......................... 33
4-9. Schematic Diagram -Main Section (2/2)- .......................... 35
5. EXPLODED VIEWS
5-1. Chassis Section ................................................................... 40
5-2. Front Panel Section ............................................................. 41
5-3. CD Mechanism Section (1) ................................................. 42
5-4. CD Mechanism Section (2) ................................................. 43
5-5. CD Mechanism Section (3) ................................................. 44
6. ELECTRICAL PARTS LIST
........................................... 45
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