Sony wx c 570 r service manual
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Extracted text from sony wx c 570 r service manual (Ocr-read)
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Ð 2 Ð SERVICE NOTE CAUTION Use of controls or adjustments or performance of proce- dures other than those specified herein may result in haz- ardous radiation exposure. Notes on Chip Component Replacement ·Never reuse a disconnected chip component. ·Notice that the minus side of a tantalum capacitor may be dam- aged by heat. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens. NOTES ON PICK-UP FLEXIBLE BOARD The pick-up flexible board in this set is secured to the optical pick- up with an adhesive tape. Once the tape is removed, an adhering force becomes weak, and it cannot be reused. Therefore, if the optical pick-up is replaced, replace also the pick- up flexible board with a new one. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. General Outputs Line outputs (2) Power antenna relay control lead Power amplifier control lead Telephone ATT control lead Tone controls Bass ± 10 dB at 100 Hz Treble ± 10 dB at 10 kHz Power requirements 12 V DC car battery (negative ground) Dimensions Approx. 178 ´ 100 ´ 173 mm (w/h/d) Mounting dimension Approx. 178 ´ 100 ´ 155 mm (w/h/d) Mass Approx. 2.2 kg Supplied accessories Parts for installation and connections (1 set) Decoy cover (1) Labels for optional rotary commander (2) Design and specifications are subject to change without notice.
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Ð 3 Ð TABLE OF CONTENTS 1. GENERAL Location of Controls ............................................................... 4 Getting Started ........................................................................ 5 Setting the Clock .................................................................... 5 CD Player ............................................................................... 5 Cassette Player ....................................................................... 6 Radio ...................................................................................... 7 RDS ........................................................................................ 8 Other Functions .................................................................... 11 CD/MD Changer .................................................................. 12 Connections .......................................................................... 15 2. DISASSEMBLY 2-1. Front Panel Assy .............................................................. 17 2-2. Key Board ........................................................................ 17 2-3. CD Mechanism Block ...................................................... 18 2-4. Heat Sink .......................................................................... 18 2-5. CD Board ......................................................................... 19 2-6. Tape Mechanism Block .................................................... 19 2-7. Main Board ...................................................................... 20 2-8. Chassis (T) Sub Assy ....................................................... 20 2-9. Lever Assy ........................................................................ 21 2-10. Servo Board ...................................................................... 21 2-11. Roller Assy ....................................................................... 22 2-12. Chassis (OP) (O/S) Assy .................................................. 22 2-13. Optical Pick-up Block ...................................................... 23 3. ASSEMBLY OF MECHANISM DECK Housing ................................................................................ 24 Arm (Suction) ....................................................................... 24 Lever (LDG-A)/(LDG-B) ..................................................... 25 Gear (Loading FT) ................................................................ 25 Guide (C), Guide .................................................................. 26 Mounting Position of Main Motor Assy (M904) ................. 26 4. MECHANICAL ADJUSTMENTS .............................. 27 5. ELECTRICAL ADJUSTMENTS Tape Section ......................................................................... 27 Tuner Section ........................................................................ 28 CD Section ........................................................................... 32 6. DIAGRAMS 6-1. Block Diagram ÐCD SectionÐ .......................................... 33 6-2. Block Diagram ÐTape SectionÐ ....................................... 35 6-3. Block Diagram ÐMain SectionÐ ....................................... 37 6-4. IC Pin Descriptions .......................................................... 39 6-5. Circuit Boards Location ................................................... 44 6-6. Printed Wiring Boards ÐCD Mechanism SectionÐ ........... 45 6-7. Schematic Diagram ÐCD Mechanism SectionÐ ............... 47 6-8. Schematic Diagram ÐCD SectionÐ ................................... 50 6-9. Printed Wiring Board ÐCD SectionÐ ................................ 53 6-10. Schematic Diagram ÐControl SectionÐ ............................ 55 6-11. Printed Wiring Board ÐControl SectionÐ ......................... 57 6-12. Printed Wiring Board ÐMain SectionÐ ............................. 61 6-13. Schematic Diagram ÐMain SectionÐ ................................ 65 7. EXPLODED VIEWS 7-1. Cover Section ................................................................... 73 7-2. Front Panel Section .......................................................... 74 7-3. Chassis Section ................................................................ 75 7-4. CD Mechanism Section (1) .............................................. 76 7-5. CD Mechanism Section (2) .............................................. 77 7-6. CD Mechanism Section (3) .............................................. 78 7-7. Tape Mechanism Section ................................................. 79 8. ELECTRICAL PARTS LIST................................... 80