Sony wx c 55 service manual

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3 TABLE OF CONTENTS 1. GENERAL Location of Controls ............................................................... 4 Getting Started ........................................................................ 4 CD Player ............................................................................... 4 Cassette Player ....................................................................... 5 Radio ...................................................................................... 5 Other Functions ...................................................................... 5 CD/MD Unit ........................................................................... 6 Additional Information ........................................................... 7 Connections ............................................................................ 8 2. DISASSEMBLY 2-1. Cover ................................................................................ 10 2-2. Front Panel Assy .............................................................. 10 2-3. CD Mechanism Block ...................................................... 11 2-4. TR Board, Heat Sink ........................................................ 11 2-5. CD Board ......................................................................... 12 2-6. Chassis (U) ....................................................................... 12 2-7. Tape Mechanism Block .................................................... 13 2-8. Main Board ...................................................................... 13 2-9. Chassis (TM) Assy ........................................................... 14 2-10. Sensor Board .................................................................... 14 2-11. Servo Board ...................................................................... 15 2-12. Roller Assy ....................................................................... 15 2-13. Chassis (OP) (O/S) Assy .................................................. 16 2-14. Optical Pick-up Block ...................................................... 16 3. ASSEMBLY OF MECHANISM DECK 3-1. Housing ............................................................................ 17 3-2. Arm (Suction) ................................................................... 17 3-3. Lever (LDG-A)/(LDG-B) ................................................ 18 3-4. Gear (Loading FT) ........................................................... 18 3-5. Guide (C) .......................................................................... 19 3-6. Capstan/Reel Motor (M904) ............................................ 19 4. MECHANICAL ADJUSTMENTS .............................. 20 5. ELECTRICAL ADJUSTMENTS Tape Section ......................................................................... 20 Tuner Section ........................................................................ 21 CD Section ........................................................................... 24 6. DIAGRAMS 6-1. IC Pin Descriptions .......................................................... 25 6-2. Block Diagram ÐCD SectionÐ .......................................... 29 6-3. Block Diagram ÐTape SectionÐ ....................................... 30 6-4. Block Diagram ÐMain SectionÐ ....................................... 31 6-5. Circuit Boards Location ................................................... 32 6-6. Printed Wiring Boards ÐCD Mechanism SectionÐ ........... 33 6-7. Schematic Diagram ÐCD Mechanism Section (1/2)Ð ...... 34 6-8. Schematic Diagram ÐCD Mechanism Section (2/2)Ð ...... 35 6-9. Printed Wiring Board ÐTR SectionÐ ................................ 36 6-10. Schematic Diagram ÐTR SectionÐ ................................... 36 6-11. Printed Wiring Board ÐCD SectionÐ ................................ 36 6-12. Schematic Diagram ÐCD SectionÐ ................................... 37 6-13. Printed Wiring Board ÐMain SectionÐ ............................. 38 6-14. Schematic Diagram ÐMain Section (1/4)Ð ....................... 40 6-15. Schematic Diagram ÐMain Section (2/4)Ð ....................... 41 6-16. Schematic Diagram ÐMain Section (3/4)Ð ....................... 42 6-17. Schematic Diagram ÐMain Section (4/4)Ð ....................... 43 6-18. Printed Wiring Board ÐControl SectionÐ ......................... 44 6-19. Schematic Diagram ÐControl SectionÐ ............................ 46 6-20. Printed Wiring Board ÐJog SectionÐ ................................ 47 6-21. Schematic Diagram ÐJog SectionÐ ................................... 47 7. EXPLODED VIEWS 7-1. Cover Section ................................................................... 53 7-2. Front Panel Section .......................................................... 54 7-3. Chassis Section ................................................................ 55 7-4. Tape Mechanism Section ................................................. 56 7-5. CD Mechanism Section (1) .............................................. 57 7-6. CD Mechanism Section (2) .............................................. 58 7-7. CD Mechanism Section (3) .............................................. 59 8. ELECTRICAL PARTS LIST................................... 60