Question about Zenith VRA421 VHS VCR

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Can hear crackling or spitting sound when selecting HI-FI

When I select HI-FI instead of standard in the Audio Menu. I then play any HI-FI video cassette, and I hear a crackling sound when the tape plays in the background. Sound comes off the speakers, not the VCR itself. Sound is present whether there is sound on the cassette, or a silent scene in a movie. It seems like a distortion of sorts. Sound is not present when I select STANDARD AUDIO in the audio menu. What could it possibly be? I adjusted the internal pots, but to no avail. Any suggestions at where to look. I have also tried multiple cables, different TVs.

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Could be alignment or one of the hi fi head not reading properly.I other words you have to change the upper cylinder.
Nuch

Posted on Dec 21, 2007

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The "crackling" sound you describe sounds suspiciously like mis-tracking. That is: The result of the Hi-Fi heads (which are on the rotating video headwheel or drum) not exactly following the recorded tracks. Have you tried adjusting the tracking slightly? The reason this happens is that the Hi-Fi tracks are MUCH narrower than the thinnest video track (used for 6 hours per T120 tape). Tape stretches and shrinks as it ages. Video recorders wear with normal use in such a way that the tracking changes. The problem is often worse with tapes recorded at the SLP (6 hour) speed because the servo cannot correct errors as fast when the tape is moving slowly (on some machines only). Tape quality also counts...and manufacturers change their formulations without public notice. All these things can lead to "archived" tapes being lost. Solution: Use the best quality tape you can afford, not the cheapest; record at the highest possible speed. Store the tape carefully. Never use a cheap "rewinder" because they can over-tighten the tape causing wrinkles, stretches, and other kinds of damage.

Posted on Mar 14, 2006

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Posted on Jan 02, 2017

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SOURCE: Only plays picture when fast forward.

Cleaning or video head replacement time....accordianman

Posted on Feb 15, 2008

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SOURCE: ZENITH VCR TAPE KEEPS EJECTING

Happened to me last nite wi 2 old tapes - the end of the tape came off the right wheel when it rewound - that was the cause - look up how to fix tapes by taking the casette apart - only thing I cant find is a picture of how the tape will feed between the heads inside he case since i suspect the tape will have fully rewound

Posted on May 26, 2008

rapanSF
  • 150 Answers

SOURCE: When playing back a recorded program only get sound. No picture

Either the program is copy protected or connection to TV is mismatched.

Posted on Mar 25, 2009

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---------------- 

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