Sony hcd vp 1 service manual

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2 TABLE OF CONTENTS 1. GENERAL Location of Controls ....................................................... 3 Setting the Time .............................................................. 4 2. DISASSEMBLY ......................................................... 5 3. SERVICE MODE ...................................................... 10 4. ELECTRICAL CONFIRMATIONS AND ADJUSTMENTS DECK Section ................................................................. 11 CD Section ...................................................................... 13 5. DIAGRAMS 5-1. Block Diagram Ð SERVO Section Ð ............................... 15 5-2. Block Diagram Ð TAPE Section Ð .................................. 16 5-3. Block Diagram Ð MAIN Section Ð ................................. 17 5-4. Block Diagram Ð DISPLAY/POWER SUPPLY Section Ð ...................... 18 5-5. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 19 5-6. Printed Wiring Board Ð CD Board Ð .............................. 20 5-7. Schematic Diagram Ð CD Board Ð ................................. 21 5-8. Schematic Diagram Ð MAIN Board (1/4) Ð ................... 22 5-9. Schematic Diagram Ð MAIN Board (2/4), HP/MIC Board, VIDEO SW Board, LOADING Board Ð ........................ 23 5-10. Schematic Diagram Ð MAIN Board (3/4) Ð ................... 24 5-11. Schematic Diagram Ð MAIN Board (4/4), LCD Board Ð .............................. 25 5-12. Printed Wiring Board Ð MAIN Board Ð ......................... 26 5-13. Printed Wiring Boards Ð LCD Board, HP/MIC Board, VIDEO SW Board, LOADING Board Ð ........................ 27 5-14. Printed Wiring Board Ð CONTROL Board Ð ................. 28 5-15. Schematic Diagram Ð CONTROL Board Ð .................... 29 5-16. Printed Wiring Board Ð POWER Board Ð ...................... 30 5-17. Schematic Diagram Ð POWER Board Ð ......................... 30 5-18. IC Pin Function Description ........................................... 35 6. EXPLODED VIEWS ................................................ 37 7. ELECTRICAL PARTS LIST ............................... 42 The laser diode in the optical pick-up block may suffer electro- static 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 emis- sion, observe from more than 30 cm away from the objective lens. 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. Flexible Circuit Board Repairing ¥ Keep the temperature of the soldering iron around 270 ûC dur- ing 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. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. The following caution label is located inside the unit. 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 PUB- LISHED BY SONY.

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3 SECTION 1 GENERAL LOCATION OF CONTROLS ¥ Front View 1Tape deck 2Liquid crystal display 3DSG button and indicator 4VOLUME knob 5TAPE P button 6TAPE 6 button 7TAPE Ï, p, 0, ) buttons 8TAPE REC r button 9CD SYNC button and indicator 0TUNER/BAND button !ÁTUNING +/Ð buttons !ªTUNING MODE button !£CD EJECT 6 button !¢CD ^, p, =/0, +/) buttons !°CD PLAY MODE button !¤CD REPEAT button !¦TUNER button and indicator !¥CD button and indicator !»TAPE button and indicator @¼MD/VIDEO button and indicator @Á 1/u button and indicator @ªRemote sensor @£CD disc tray @¢PHONES jack @°MIC IN jack @¤MIC VOL knob @¦VCD ON indicator @¥PBC indicator @»SELECT button #¼PREV button #ÁRETURN button #ªNEXT button 1 2 3 4 5 6 8 7 9 !¼ !Á !ª !¦ !¤ !° !£ !¢ !» @¼ @Á @ª @£ @¢ @° @¤ @¦ @¥ @» #Á !¥ #¼ 2 1 5 6 7 8 9 0 ¥ Rear View #ª 4 3 1AM ANTENNA terminals 2FM ANTENNA terminals 3SYSTEM SELECT switch 4VIDEO OUT jack 5POWER SELECT switch 6LINE OUT jacks 7MD IN jacks 8VIDEO IN jacks 9OPTICAL DIGITAL OUT (CD) 0SPEAKER terminals