Sony d ns 707 f service manual

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2 D-NS707F TABLE OF CONTENTS 1. SERVICE POSITION .......................................... 3 2. GENERAL............................................................ 5 3. DISASSEMBLY 3-1. Upper (Lid) Section ......................................................... 6 3-2. Cabinet (Middle) Section ................................................ 7 3-3. MAIN PWB Assy ............................................................ 7 3-4. MAIN Board, CD Mechanism Deck (CDM-3325ERV2) .......................................................... 8 3-5. Turn Table Motor Assy (M901), Sled Motor Assy (M902), Optical Pick-up (DAX-25EV) ......................................... 8 4. ELECTRICAL CHECKING ................................ 9 5. DIAGRAMS 5-1. Block Diagram – MAIN Section (1/2) – ......................... 12 Block Diagram – MAIN Section (2/2) – ......................... 13 Block Diagram – TUNER Section – ............................... 14 Block Diagram – POWER Section – ............................... 15 5-2. Printed Wiring Board – MAIN Board (Side A) – ............ 16 5-3. Printed Wiring Board – MAIN Board (Side B) – ............ 17 5-4. Schematic Diagrams – MAIN Board (1/5) – ................... 18 5-5. Schematic Diagrams – MAIN Board (2/5) – ................... 19 5-6. Schematic Diagrams – MAIN Board (3/5) – ................... 20 5-7. Schematic Diagrams – MAIN Board (4/5) – ................... 21 5-8. Schematic Diagrams – MAIN Board (5/5) – ................... 22 5-9. IC Pin Function Descriptions .......................................... 27 6. EXPLODED VIEWS 6-1. Cabinet Upper .................................................................. 34 6-2. Cabinet Lower ................................................................. 35 6-3. Strap Front ....................................................................... 36 6-4. MAIN PWB Assy ............................................................ 37 6-5. CD Mechanism Deck Section (CDM-3325ERV2) .......... 38 7. ELECTRICAL PARTS LIST ............................... 39 Unleaded solder Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Flexible Circuit Board Repairing -K eep the temperature of soldering iron around 270˚C 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. Notes on chip component replacement -N ever reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be damaged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. On AC power adaptor -U se only the AC power adaptor supplied or recommended in Accessories (supplied/ optional). Do not use any other AC power adaptor. It may cause a malfunction. Polarity of the plug