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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!!!!!!
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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.
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Very good manual with clear electrical diagrams. Thanks owner-manuals.
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Great manual, thank you, sony kp46s3 service manual perfectly, i am very happy.
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Complete original Service Manual in good (scan) quality!
MECHANISM TROUBLESHOOTING GUIDE
E.
No tape winding is done in play.
Is the pinch roller attached to the Capstan shaft in operation of play?
NO
Check the assembly mode?
YES NO
Does the T/up reel operate? Is the Capstan belt hung?
NO
Hang the Capstan belt.
YES
Does the Capstan motor turn?
YES
Check the clutch and the idler assembly.
YES
Does the drum motor turn?
NO
Is normal voltage applied to the capstan motor Vcc1, Vcc2?
YES
Is the DPG, DFG normal?
YES
Is the Vctl terminal voltage of the Capstan motor applied at more than 4V?
NO
Check the Servo, power circuit.
YES
Are the T/up and the reel sensor normal?
YES
Replace the Capstan motor.
YES NO
Check the Syscon circuit. Is the Vcc voltage of the drum motor normal?
NO
Check the Syscon circuit.
YES
Is the Vctl terminal voltage of the drum motor at more than 2.3V?
NO
Check the Syscon circuit.
YES
Replace the drum motor.
4-25
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