Sony hcd g 1 service manual
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Extracted text from sony hcd g 1 service manual (Ocr-read)
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Ñ 2 Ñ Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PROD- UCT MARKING is located on the rear exterior. This caution label is located inside the unit. CAUTIONUse of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Notes on chip component replacement ¥ Never reuse a disconnected chip component. ¥ Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ¥ Keep the temperature of soldering iron around 270ûC during repairing. ¥ Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). ¥ Be careful not to apply force on the conductor when soldering or unsoldering. 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.
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Ñ 3 ÑTABLE OF CONTENTS 1. GENERAL .......................................................................... 4 2. DISASSEMBLY 2-1. CD Door ............................................................................... 5 2-2. Back Panel ............................................................................ 5 2-3. CD Mechanism Deck ............................................................ 6 2-4. Front Panel and Main Board ................................................. 6 2-5. CD Tray ................................................................................ 7 2-6. CD Decoder Board ................................................................ 7 2-7. Base Unit .............................................................................. 8 3. MECHANICAL ADJUSTMENTS ................................ 9 4. ELECTRICAL ADJUSTMENTS ................................. 9 5. DIAGRAMS 5-1. Circuit Boards Location ...................................................... 14 5-2. Block Diagrams ¥ Tuner Section (E, AR, MX models) ................................. 15 ¥ Tuner Section (AEP, UK models) .................................... 17 ¥ CD Section ....................................................................... 19 ¥ Deck Section .................................................................... 21 ¥ Main Section (E, AR, MX models) ................................. 23 ¥ Main Section (AEP, UK models) ..................................... 25 ¥ Power Section (E, AR, MX models) ................................ 27 ¥ Power Section (AEP, UK models) ................................... 28 5-3. IC Block Diagrams .............................................................. 29 5-4. Printed Wiring Board ÑMain Section Ñ (E, AR, MX models) ........................................................... 34 5-5. Schematic Diagram Ñ Main Section Ñ (E, AR, MX models) ........................................................... 39 5-6. Schematic Diagram Ñ Main Section Ñ (AEP, UK models) .............................................................. 43 5-7. Printed Wiring Board ÑMain Section Ñ (AEP, UK models) .............................................................. 47 5-8. Printed Wiring Board Ñ CD Section Ñ ............................. 52 5-9. Schematic Diagram Ñ CD Section Ñ ............................... 57 5-10. Schematic Diagram Ñ Panel Section Ñ ......................... 61 5-11. Printed Wiring Board Ñ Panel Section Ñ ....................... 65 5-12. Printed Wiring Board Ñ Tuner Section Ñ (E, AR, MX models) ......................................................... 71 5-13. Schematic Diagram Ñ Tuner Section Ñ (E, AR, MX models) ......................................................... 75 5-14. Schematic Diagram Ñ Tuner Section Ñ (AEP, UK models) ............................................................ 79 5-15. Printed Wiring Board Ñ Tuner Section Ñ (AEP, UK models) ............................................................ 83 5-16. IC Pin Function ................................................................ 87 6. EXPLODED VIEWS 6-1. Case and Back Panel ........................................................... 89 6-2. Front Panel Section ............................................................. 90 6-3. Cassette Mechanism Deck Section 1 .................................. 91 6-4. Cassette Mechanism Deck Section 2 .................................. 92 6-5. CD Mechanism Deck Section 1 .......................................... 93 6-6. CD Mechanism Deck Section 2 .......................................... 94 6-7. Base Unit Section (KSM-213BCM) ................................... 95 7. ELECTRICAL PARTS LIST ........................................ 96 SERVICING NOTE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down 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. MODEL IDENTIFICATION Ñ AC POWER SUPPLY CODE Ñ AEP model UK model Mexican model (Without voltage selector) E, Argentine model (With voltage selector) ¥ Abbreviation AR : Argentine model MX : Mexican model