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FAST very good and clear a great unexpensive job!!! very recomended for all people who are preofessional or hobbists as me!!!!!!
Thank you very much for this Service Manual, it helped us a lot to repair the M-4318!
...BUT: The parts list is missing and the free parts katalog on web isn't complete, so now we don't know the part numbers of the defect parts :(
We had to build them out of a working machine, and need the numbers to reorder the missing parts now.
Very good manual with clear electrical diagrams. Thanks owner-manuals.
Great manual, thank you, sony kp46s3 service manual perfectly, i am very happy.
Complete original Service Manual in good (scan) quality!
< Cassette mechanism section >
Removing the playback,recording and eraser heads (See Fig.1~3)
1. While shifting the trigger arms seen on the right side of the head mount in the arrow direction,turn the flywheel R in counterclockwise direction until the head mount has gone out with a click (See Fig. 1). 2. When the flywheel R is rotated in counterclockwise direction, the playback / recording & eraser head will be turned in counterclockwise direction from the position in Fig.2 to that in Fig.3. 3. At this position, disconnect the flexible P.C.board (outgoing from the playback head) from the connector CN301 on the head amp. and mechanism control P.C. board. 4. Remove the flexible P.C.board from the chassis base. 5. Remove the spring "a" from behind the playback / recording head. 6. Loosen the reversing azimuth screw retaining the playback head. 7. Take out the playback head from the front of the head mount. 8. The recording and eraser heads should also be removed similarly according to Steps 1~7 above.
Trigger arm (Mechanism A side)
Playback/Recording & eraser head Flexible P.C.board
Spring "a" Trigger arm
Reassembling the playback, recording and eraser heads (See Fig.3)
1. Reassemble the playback head from the front of the head mount to the position as shown in Fig.3. 2. Fix the reversing azimuth screw. 3. Set the spring a from behind the playback head. 4. Attach the flexible P.C.board to the chassis base as shown in Fig.3. 5. The recording and eraser heads should also be reassembled similarly according to Steps 1~4 above.
CN301 Head amplifier & mechanism control P.C. board Flywheel R
(Mechanism A side)
Reversing azimuth screw Head mount Flexible P.C.board CN302
Head amplifier & mechanism control
P.C. board (Mechanism B side)