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PV-1730 and/or PV-1631M service manual(s) needed

Macdude

Hi /on/ Fidelity
Hi, I'm looking for these mid-80's Panasonic VCR service manuals if anyone has them. Or, if anyone knows what the fixes are, here's the problems:

PV-1730... When I run the unit for the first time (after leaving it sit, off for a few hours) the hifi audio is distorted, especially in the lower frequency areas. After about 5-10 minutes of playback, the distortion goes away and the sounds is perfect. After turning it off for a while it will have the same symptoms the next time it is turned on. Sound is distorted through the RCA outs and the phones output. When I switch to normal (linear) audio, the sound is fine. The issue seems to be only on the hifi output. Heads are clean and a new pinch roller was just installed.

PV-1631M... This unit has no hifi output whatsoever. The unit switches to hifi when I play a tape (as it should) but there is a pop and the audio cuts out as soon as it switches into hifi mode. Normal audio is fine once again.

I can't see spending $25+ on a manual when the machines cost me less than that combined, not to mention the fact that they may be irrepairable :tears:.
 
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