Question about GE 31GT740 31" TV

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Pop and hiss

I went to turn on my TV and it gave me a popping, hissing and bursts of "sparking" in the lower right corner. I had to unplug the TV to turn it off.

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Re: Pop and hiss

Sound not so good. You probably have a bad flyback transistor and now the power supply is fried also.If your lucky all youll have to do if your a tech and only if your a tech is to replace the Hi voltage transformer and the horizontal output transistor. Now these sets have high voltage still around there componets even when the sets unplugged, so please if you wanna invest in the set take it to a pro to assist you in this repair. Good Luck

Posted on Jun 08, 2006

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Hissing sound from a Panasonic old TV...Sound and picture are OK. The hissing sound even continues when the MUTE on the Box is ON. The hissing only stops when the MUTE on the TV is ON. I am using the...

If you disconnect or power off the converter box does the hiss go away?
If you connect a VCR or DVD player does it still have the hiss? We
need to isolate what source is causing the hiss if it is from the set or
if it is from the converter box.
When you turn the volume control down on the set, does the hiss
reduce in level? If mute stops it, it should reduce in level as you
turn the volume down. Then turn up the sound level control on
the converter box whether its a manual control or by remote. If you
can get a combination that minimizes the hiss and gets higher sound
level from the programming that may cure it.
I am not familiar with the converter box you are using. Are you using
Audio/Video cables from it to the set or is it coming out with coaxial cable
and used on a channel? If you are using a very old set with a tuner input
perhaps the fine tuning is out of adjustment.

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Sounds like a power surge likely followed the outage- or maybe you were actually hit by lightning- and since this set did not have a built-in kill-switch (circuit breaker) it could have very well caused some significant damage. Check the internal fuses, if they are blown, chances are, so is the rest of the set. For the cost of repairing something as over-reaching as this, I'd be looking for something new (And be sure to buy a quality surge protector, so this does not occur again!)

Hope this helps in some small way!

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