Sony nw ms 7 service manual

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– 2 – TABLE OF CONTENTS 1. GENERAL Looking at the controls ............................................................ 3 Installing the OpenMG Jukebox software ............................... 4 Transferring music data from the computer to the Memory Stick Walkman .......................................................... 4 Listening to music with the Memory Stick Walkman ............. 5 Playing in Various Modes ........................................................ 5 Changing the Display Mode .................................................... 6 Locking the Controls (HOLD) ................................................ 6 Changing the Settings of Memory Stick Walkman ................. 6 Names and Functions of the OpenMG Jukebox Window ....... 7 2. DISASSEMBLY 2-1. Lid, Battery Case ................................................................. 8 2-2. Lid Assy (Service), Upper ................................................... 9 2-3. Main Board ....................................................................... 10 2-4. LCD Block ........................................................................ 11 2-5. HP Board, CN Board ........................................................ 11 3. TEST MODE 3-1. General Information .......................................................... 12 3-2. Tools .................................................................................. 12 3-3. Setting the TEST MODE .................................................. 12 3-4. Releasing the TEST MODE .............................................. 12 3-5. Operations in the TEST MODE ........................................ 12 3-6. Creating the Memory Stick for Operational Check .......... 14 4. DIAGRAMS 4-1. IC Pin Description ............................................................. 16 4-2. Block Diagram –Audio Section (1/2)– ............................. 19 4-3. Block Diagram –Audio Section (2/2)– ............................. 21 4-4. Block Diagram –Power Supply Section– .......................... 23 4-5. Printed Wiring Board –Main Board– ................................ 25 4-6. Schematic Diagram –Main Board (1/4)– .......................... 29 4-7. Schematic Diagram –Main Board (2/4)– .......................... 31 4-8. Schematic Diagram –Main Board (3/4)– .......................... 33 4-9. Schematic Diagram –Main Board (4/4)– .......................... 35 4-10. Printed Wiring Boards –CN Board, HP Board– ................ 37 4-11. Schematic Diagrams –CN Board, HP Board– .................. 39 4-12. IC Block Diagrams ............................................................ 41 5. EXPLODED VIEWS ....................................................... 45 6. ELECTRICAL PARTS LIST ........................................ 46 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 PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 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. 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. IC Repairing -Replacement of HD64F7198RVBP16 (IC701), MG IC ASSY (IC702) and CXD1858GA (IC703) on main board used in this set requires a special tool. Therefore, they cannot be replaced.