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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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SANYO VWM-900 VCR Audio Fault
When playing tapes recorded in monaural from another VCR, the audio is
muddled, highs are clipped, and there is a slow,low level flucuating hiss from the stereo TV speakers. Tapes recorded on *this* VCR in stereo play back OK. I tried turning off stereo in the VCR menu. I tweaked the AC head with slight improvement, but still not satisfactory. These tapes play back OK on another Sanyo Hi-Fi VCR VWM-668. Ideas, besides pitch this $40. VCR? Thanks JR -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
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SANYO VWM-900 VCR Audio Fault
On Mon, 17 Oct 2005 17:07:32 -0700 JR North
wrote: When playing tapes recorded in monaural from another VCR, the audio is muddled, highs are clipped, and there is a slow,low level flucuating hiss from the stereo TV speakers. Tapes recorded on *this* VCR in stereo play back OK. I tried turning off stereo in the VCR menu. I tweaked the AC head with slight improvement, but still not satisfactory. These tapes play back OK on another Sanyo Hi-Fi VCR VWM-668. Ideas, besides pitch this $40. VCR? I'm not sure about this, but I think there's a possibility that the stereo audio is RF modulated and recorded on the helical scan, along with the video signal. Such tapes would have a separate linear audio track on the edge of the tape for backwards compatability. If I'm right about this, then it would point to a problem with the mono ACE head, or the circuitry that follows it up to the point where the VCR chooses which signal to use. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
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