OT: Television Vibration

  • Thread starter Thread starter Grinder
  • Start date Start date
G

Grinder

I'm posting this question here because 1) someone will probably be able
to give me a reasoned guess, and 2) I'm too lazy to look through all of
the newsgroups with "tv" in it to find one about repair. My apologies
if you find this sloppiness offensive.

--

I have an older (10-15 years) Magnavox 19" color TV that is serving me
well. Recently, however, it has developed a sort of nervous tic.
Something within it is vibrating enough that it produces a noticeable
buzzing noise. If I put a dictionary on top of it, the housing is
damped enough to kill the noise, if not the source of the vibration.

When it does appear, the set has always been on for at least an hour.
But it does not always appear when the set has been on. Somewhat
unexpectedly, if the television is turned off, it takes perhaps 15
minutes to stop vibrating.

Does anyone have any speculations about cause and/or remedy?
 
Grinder said:
I'm posting this question here because 1) someone will probably be
able to give me a reasoned guess, and 2) I'm too lazy to look through
all of the newsgroups with "tv" in it to find one about repair. My
apologies if you find this sloppiness offensive.
Click to expand...

Could be the windings in the flyback or tripler. These produce 30KV of high
voltage. DO NOT attempt to open the back of the set.
 
Grinder said:
I'm posting this question here because 1) someone will probably be able
to give me a reasoned guess, and 2) I'm too lazy to look through all of
the newsgroups with "tv" in it to find one about repair. My apologies
if you find this sloppiness offensive.

--

I have an older (10-15 years) Magnavox 19" color TV that is serving me
well. Recently, however, it has developed a sort of nervous tic.
Something within it is vibrating enough that it produces a noticeable
buzzing noise. If I put a dictionary on top of it, the housing is
damped enough to kill the noise, if not the source of the vibration.

When it does appear, the set has always been on for at least an hour.
But it does not always appear when the set has been on. Somewhat
unexpectedly, if the television is turned off, it takes perhaps 15
minutes to stop vibrating.

Does anyone have any speculations about cause and/or remedy?
Click to expand...

Try sci.electronics.repair. Good bunch of people there. But if I were
you, I'd modify that statement about being too lazy to look for
yourself.
 
Zotin said:
Try sci.electronics.repair. Good bunch of people there.
Click to expand...

Thanks, I'll try there. I'm not sure if you're taking me to task for my
laziness or my grammar.
 
Grinder said:
Thanks, I'll try there. I'm not sure if you're taking me to task for my
laziness or my grammar.
Click to expand...

No offence meant :), but I felt that it wouldn't make a good
impression on the people whose help you're asking for, many of them
professionals who are willing to share their experience for free. I
mean the laziness.... I'm hardly qualified to criticize someone else's
grammar - I started speaking English only when I went to college at
the age of 15.

I hope you find the solution to your problem but the symptoms are
rather vague. I have some experience in electronics myself and I'll
get back to you in sci.electronics.repair if I can think of something
you can check by yourself.
 
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