Table Of Contents - Sony M-640V Service Manual

M-640V/645V/647V

TABLE OF CONTENTS

1. GENERAL
................................................................... 3
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 4
2-2. Lid Assy, Cassette ........................................................... 4
2-3. Lid, Battery Case ............................................................ 5
2-4. Cabinet (Rear) Assy ........................................................ 5
2-5. MAIN Board ................................................................... 6
2-6. Mechanism Deck (MZ-530V-99) ................................... 6
2-7. LED Unit ......................................................................... 7
2-8. Head, Ceramic (HRPE901) ............................................. 7
3. MECHANICAL ADJUSTMENTS
4. ELECTRICAL ADJUSTMENTS
5. DIAGRAMS
5-1. Block Diagram ................................................................ 11
5-2. Printed Wiring Board ...................................................... 12
5-3. Schematic Diagram ......................................................... 13
6. EXPLODED VIEWS
6-1. Cabinet Section ............................................................... 14
6-2. Main Group Section ........................................................ 15
6-3. Mechanism Deck Section (MZ-530V-99) ...................... 16
7. ELECTRICAL PARTS LIST
2
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270˚C dur-
• Do not touch the soldering iron on the same conductor of the
• Be careful not to apply force on the conductor when soldering
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
....................... 8
......................... 8
............................... 17
ing repairing.
circuit board (within 3 times).
or unsoldering.
aged by heat.
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 PUB-
LISHED BY SONY.