I have a Sony slv-n55 VCR with intermittant video and audio problems. It has a built-in tuner; the
cable comes into the house, into the VCR, and then from the VCR output
on the VCR into the TV set so I can watch one program and record
another at the same time. There is no external "box" involved.
The TV also has
its own tuner. Until a few months ago, everything was working
perfectly. No problems with picture or audio even when I was watching a
different channel on the TV while the VCR was recording a different
Now I've started having audio and video problems with certain
channels (mostly local channels, for some reason) with all others ok,
even if I'm watching one channel and recording another. Hookups are
tight, and no settings have been changed.
All things being equal: 1. My
cable connection is from Mediacom Cable. Could my problems have
anything to do with the signal I'm receiving from the cable company
during the run-up to digital conversion? I know it shouldn't, but you never know. 2. Is it possible for the
built-in tuner in my VCR to fail selectively and affect some channels
and not others?
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The television has nothing to do with recording. It is only required for playback. There are a number of possibilities depending on what equipment you have. Do you have cable, satellite, antenna? Your signal source has to be connected to the VCR either through the cable connector, or RCA video jacks. If you have straight cable, connect the cable to the "ant in" connector on the VCR. The VCRs tuner will select the channel you want to record. If you are on antenna, you will need a Digital set top box (STB) to receive any channels. If you have a satellite, cable box or digital STB, you must go from the output of the box to the input of the VCR. You can use the standard coax cable,but I would recommend using the audio/video cables for better quality. If using coax, the VCR will have to be set to either channel 3 or 4, depending on the boxes output setting. Using A/V jacks, the VCR will be set to "Line" or "Video" input.
Two things to check here. Lets verify the basic functioning of the unit. Have you tried playing back a pre-recorded tape? If so, please post the results here. I suspect that a pre-recorded tape will fail as well. If so, I'll post instructions on how to resolve the problem.
I would be inclined to say that there are only two likely problems that you may be encountering. Either you are getting a bad signal feed, or the connectors on the cable are getting old and need replaced. The connection to the cable can break down over time, especially if they have been connected and reconnected several times. I cannot rule out problems caused by the transition to DTV, but that doesnt seem likely if there are only a few channels affected. As far as "selective failure" of the VCR's built-in tuner, I would say that that is also a very unlikely source for the problem If the tuning components inside the tuner had gone out, I would expect to see a problem on all channels watched through the system. If you are having this problem on all channels of the sony, then the tuner could surely be the problem, but if you haven't used it much that would indicate a problem at manufacturing, however since at least one of the machines is working fine on some channels and not on all of them, I would suspect the connections or the signal from your cable company. Contact them first ands see if they are having signal issues, if not try replacing your connectors.