Sony cdx l 250 service manual

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3 TABLE OF CONTENTS 1. GENERAL Location of controls ................................................................. 4 Getting Started ......................................................................... 4 CD Player ................................................................................ 4 Radio ....................................................................................... 5 Other Functions ....................................................................... 5 Connections ............................................................................. 7 2. DISASSEMBLY 2-1. Front Panel Assy ................................................................. 9 2-2. CD Mechanism Block ....................................................... 10 2-3. Main Board ....................................................................... 10 2-4. Heat Sink ........................................................................... 11 2-5. Chassis (T) Sub Assy ........................................................ 11 2-6. Lever Section .................................................................... 12 2-7. Servo Board ....................................................................... 12 2-8. Shaft Roller Assy .............................................................. 13 2-9. Floating Block Assy .......................................................... 13 2-10. Optical Pick-up Block ....................................................... 14 3. ELECTRICAL ADJUSTMENTS ................................. 15 4. DIAGRAMS 4-1. IC Pin Description ............................................................. 17 4-2. Block Diagram -“CD Section-“ ........................................... 19 4-3. Block Diagram -“Tuner Section-“ ....................................... 20 4-4. Block Diagram -“Display Section-“ .................................... 21 4-5. Circuit Boards Location .................................................... 21 4-6. Printed Wiring Boards -“CD Mechanism Section-“ ............ 22 4-7. Schematic Diagram -“CD Mechanism Section-“ ................ 24 4-8. Printed Wiring Board -“Main Section-“ .............................. 25 4-9. Schematic Diagram -“Main Section (1/2)-“ ........................ 26 4-10. Schematic Diagram -“Main Section (2/2)-“ ........................ 27 4-11. Printed Wiring Board -“Display Section-“ .......................... 28 4-12. Schematic Diagram -“Display Section-“ ............................. 29 5. EXPLODED VIEWS 5-1. Chassis Section ................................................................. 32 5-2. Front Panel Section ........................................................... 33 5-3. CD Mechanism Section (1) ............................................... 34 5-4. CD Mechanism Section (2) ............................................... 35 5-5. CD Mechanism Section (3) ............................................... 36 6. ELECTRICAL PARTS LIST ........................................ 37 CDX-L250/L430X