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Magnavox msd804 vcr/dvd combo

Vcr tried to eat several tapes it would either eject properly or leave tape routed through all rollers but, after taking cover off and watching cylindrical head was turning and engaging etc... ;. Tape spindles would rotate about 10 degrees and then would get eject message on screen; but tape would not come out unless power turned off. After carefully watching tapes in and out and messing with tape entry mechanisms; noticed that the rubber coated roller mechanism which engages on the side where the conical pin fits in the tape had more resistance than what i thought was normal. Why did this happen; after several, well many cycles of unpluuging and plugging up and many different tapes the problem resolved itself for now. whewww! at least it did not eat tapes up completely like old machines, just wrinkled section around rollers.

What is the most likely cause of this problem and how can i be sure to avoid creating the same situation again.

Thanks! RT Smyrna, GA

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Re: magnavox msd804 vcr/dvd combo

I think what you are referring to is the pinch roller. This roller sits at the right side of the mechanism, and in play mode, presses the tape up against the capstan shaft. These pull the tape through the machine at a precise regulated speed. If the roller isn't being engaged or the capstan isn't turning, then these conditions need to be corrected. Does the capstan turn freely? How about the noted roller? Perhaps lubricant has dried/hardened/gotten sticky...

There is electronic circuitry for the capstan motor (a direct drive type motor integrated on the underneath side. Something could be awry with this circuitry.

There is a drive clutch mechanism which could also be defective. This drive clutch assembly sits in between & swivels between the supply and takeup spindle, depending on whether VCR is in Play/FFWD or REW. In the Play/FFWD, it is engaging the right spindle (takeup) and in REW the left spindle (supply). If this is what you are describing, perhaps this clutch unit needs replacement or the grease at its pivot is hardened/sticky.

Most VCRs of the last 10+ years don't use a rubber tired drive (very common on late '80s VCRs), rather a gear toothed drive.

Beyond a simple mechanical problem, repair might not be economical feasible. Most VCRs of the last 10+ years are poor quality, disposable, unlike the machines of the '80s and early '90s, which were built like tanks comparitively speaking.

Posted on Nov 05, 2007

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