Sony d ne 240 service manual

Page 1

2 D-NE240/NE241/NE241CK TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 5 3-2. Cabinet (Lower) Assy ...................................................... 5 3-3. MAIN Board, CD Mechanism (CDM-3525A) ............... 6 3-4. Cabinet (Inner) Assy, SWITCH Board ............................ 6 4. TEST MODE .............................................................. 7 5. ELECTRICAL CHECK ........................................... 7 6. DIAGRAMS 6-1. Printed Wiring Board – SWITCH Board – ..................... 9 6-2. Printed Wiring Board – MAIN Board (Component Side) – ............................... 10 6-3. Printed Wiring Board – MAIN Board (Conductor Side) – ................................. 11 6-4. Schematic Diagram – MAIN Section (1/2) – .................. 12 6-5. Schematic Diagram – MAIN Section (2/2) – .................. 13 7. EXPLODED VIEWS 7-1. Upper Lid and Cabinet (Inner) Section ........................... 17 7-2. Cabinet Lower Section .................................................... 18 8. ELECTRICAL PARTS LIST ................................ 19 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 the 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. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation e xposure. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PA RT NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. On the AC power adaptor - Use only the AC power adaptor supplied. If your player is not supplied with an AC power adaptor, use an AC-E45HG AC power adaptor*. Do not use any other AC power adaptor. It may cause a malfunction. * Not available in Australia and some other regions. Ask your dealer for detailed information. Polarity of the plug - Do not touch the AC power adaptor with wet hands. - Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconnect it from the AC outlet immediately.