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There are currently no product reviews.
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
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Excellent printing quality. A complete and very useful manual with all details.
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This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
FLOW CHART NO.16
Drum servo does not function.
Is there 14.318MHz oscillation at pins(37) and (38) of IC701?
YES In PB mode NO
NO
Check peripheral circuit of X701.
In REC mode YES
Is there drum FG signal at pin(65) of IC701?
YES
Is there V-SYNC signal(reference) at pin(50) of IC701?
NO
Check drum FG signal line.
Is there head switching pulse at pin(23) of IC701?
YES
NO
See FLOW CHART NO.15.
Check pin(50) of IC701, C770, C771, R770 and their peripheral circuits.
Are there drum APC output at pin(34) NO of IC701 and drum AFC output at pin(32) of IC701?
YES
Replace IC701.
Is there drum control voltage input at pin(2) of IC706?
YES
NO
Check line between pins(34) and (32) of IC701 and pin(2) of IC706.
YES
41
Does the IC706 operate normally?
YES
Is pin(46) of IC701 in high impedance?
NO
Replace IC701.
Replace drum motor.
VC-GA56Z VC-GH96Z
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