Sony hcd md 5 service manual
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Ð 2 Ð TABLE OF CONTENTS 1. SERVICING NOTES .................................................. 3 2. GENERAL Index to Parts and Controls ............................................... 5 3. DISASSEMBLY ............................................................ 7 4. TEST MODE ................................................................. 14 5. ELECTRICAL ADJUSTMENTS MD Section ........................................................................ 20 Tuner Section ..................................................................... 25 CD Section ......................................................................... 26 6. DIAGRAMS 6-1. Block Diagrams CD Section ......................................................................... 29 Tuner Section ..................................................................... 31 MD Section ........................................................................ 35 Main Section ...................................................................... 39 6-2. Schematic Diagram Ð Tuner Section Ð (AEP, G, UK model) .......................................................... 44 6-3. Printed Wiring Board Ð Tuner Section Ð (AEP, G, UK model) .......................................................... 46 6-4. Printed Wiring Board Ð Tuner Section Ð (EXCEPT AEP, G, UK model) .......................................... 47 6-5. Schematic Diagram Ð Tuner Section Ð (EXCEPT AEP, G, UK model) .......................................... 48 6-6. Printed Wiring Board Ð CD Section Ð ............................... 50 6-7. Schematic Diagram Ð CD Section Ð .................................. 53 6-8. Printed Wiring Board ÐMD Section Ð ............................... 56 6-9. Schematic Diagram ÐMD Section Ð .................................. 59 6-10. Schematic Diagram Ð Digital Section Ð ............................ 63 6-11. Printed Wiring Boards Ð Digital Section Ð ........................ 67 6-12. Schematic Diagram Ð Relay Section Ð .............................. 70 6-13. Printed Wiring Board Ð Relay Section Ð ........................... 73 6-14. Printed Wiring Board Ð Main Section Ð ............................ 76 6-15. Schematic Diagram Ð Main Section Ð ............................... 79 6-16. Schematic Diagram Ð Power Section Ð ............................. 83 6-17. Printed Wiring Boards Ð Power Section Ð ......................... 87 6-18. Schematic Diagram Ð Power AMP Section Ð .................... 92 6-19. Printed Wiring Boards Ð Power AMP Section Ð ................ 95 6-20. Schematic Diagram Ð Panel Section Ð ............................... 99 6-21. Printed Wiring Boards Ð Panel Section Ð ........................ 103 6-22. IC Pin Function Description ............................................ 109 7. EXPLODED VIEWS ................................................. 123 8. ELECTRICAL PARTS LIST .................................. 132 Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Tourist model: 76.0 Ð 108.0 MHz (50 kHz step) Other models: 87.5 Ð 108.0 MHz (50 kHz step) Aerial FM lead aerial Aerial terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz AM tuner section Tuning range German model: AM: 522 Ð 1,611 kHz (with the interval set at 9 kHz) AEP, UK models: MW: 522 Ð 1,611 kHz (with the interval set at 9 kHz) LW: 144 Ð 288 kHz (with the interval set at 3 kHz) Tourist model: AM: 531 Ð 1,602 kHz (with the interval set at 9 kHz) 530 Ð1,710 kHz (with the interval set at 10 kHz) Malaysia, Singapore, Saudi Arabia, Hong Kong models: MW: 531 Ð 1,602 kHz (with the interval set at 9 kHz) 530 Ð 1,710 kHz (with the interval set at 10 kHz) SW: 5.95 Ð 17.90 MHz Aerial AM loop aerial External aerial terminals Intermediate frequency 450 kHz General Power requirements 220 Ð 230 V AC, 50/60 Hz (AEP, German model) 110 Ð 120 V or 220 Ð 240 V AC, 50/60 Hz Adjustable with the voltage selector (Other model) Power consumption 85 watts (Tourist model) 130 watts (Other models) Dimensions Amplifier/Tuner/MD/CD section: Approx. 280 ´ 240 ´ 360 mm (11 1/8 ´ 9 1/2 ´ 14 1/4 in) (w/h/d) incl. projecting parts and controls (U.K., Hong Kong model) Approx. 280 ´ 240 ´ 350 mm (11 1/8 ´ 9 1/2 ´ 13 7/8 in) (w/h/d) incl. projecting parts and controls (Other models) Mass Amplifier/Tuner/MD/CD section: Approx. 9.4 kg (20 lb 12 oz) Supplied accessories: AM loop aerial (1) Remote RM-S5MD (1) Sony SUM-3 (NS) batteries (2) FM lead aerial (1) Speaker cords (2) Design and specifications are subject to change without notice.
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Ð 3 Ð SECTION 1 SERVICING NOTES MODEL IDENTIFICATION Ñ BACK PANEL Ñ 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. 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. 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 soldering iron around 270 ûC during re- pairing. ·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. CAUTION Use of controls or adjustments or performance of pro- cedures other than those specified herein may result in hazardous radiation exposure. Laser component in this product is capable of emitting radia- tion exceding 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. Note: Be sure to connect all wires (including FFC) in the MD section before applying power or ICs may be damaged. MODEL PARTS No AEP model 4-984-208-1¹ UK model 4-984-208-2¹ Saudi Arabia, Singapore, 4-984-208-3¹ Malaysia model German model 4-984-208-4¹ Hong Kong model 4-984-208-5¹ Tourist model 4-984-208-7¹ Parts No.