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My Insignia flat screen TV makes a funny noise once it has warmed up. It almost sounds like "leaking water". I turn it of and turn it back on and the sound is gone for a while but it always comes back once the TV has been on for a while???

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What can I do to make it come on

Posted on Oct 13, 2013

Testimonial: "It starts after the tv has been on for 20 minutes. It started after we moved out of state. It may have been laid on its side during the move if that helps. The only thing to make the noise stop is to turn it off & then start it again. But it makes the noise a lot sooner of the tv has been on for awhile. Thanks!"

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Posted on Jan 02, 2017

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SOURCE: LG TV Making Bad Noise

have u tryed new cables for sound 1st

Posted on Feb 03, 2008

  • 10 Answers


You need to look at the power supply board for swollen capacitors. Some of the capacitors will have a black goo on them and that would be your problem and why it cannot start up. You can find the power supply board by removing the back cover, looking towards the top middle. Once you have located that, look for bad capacitors as stated above. If you are comfortable soldering, you can remove the bad ones and put in new ones. Look at for the replacement capacitors. Simply put in the specs of the capacitors. Mine for example were 680 mfd at 50 v. I ordered 4 of those as my power supply had 4 capacitors with the black goo on them. After I put in the new parts, at a cost of $5, my tv stopped making the clicking sound and it turned right on. I tested the bad caps for giggle and they were not holding their power as they should, so they were confirmed bad. I hope this helps.

Posted on Jul 22, 2009

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SOURCE: insignia tv will not powerup

Nothing at all? Does the screen seem to go from dark black to a lighter shade of black?

If the screen appears to stay on the darker shade of black then it is broken, and needs to be sent for repair. ( ie the screen isnt powering on when the tv is and there is nothing you can do without opening it.

You might try unplugging all cables and leaving it off with no power for a day This is in effect performing a factory reset.

and this may sound stupid and patronizing but is the TV being taken out of standby mode and actually switched on?


Posted on Sep 09, 2009

  • 66 Answers

SOURCE: TV loses picture about 2 seconds after turning on

check the oscillator

Posted on Oct 24, 2009

  • 4234 Answers

SOURCE: Sound stays on, but no picture- goes black and stays that way.

This unit should still be under warranty and should be taken in for warranty service. Any attempt to access the interior will void the warranty. It is important that a complete description of the problem like you entered here be taken along when you bring the set in for service. This will insure that the servicer be able to reproduce the problem and resolve it.

From your description (and as a servicer), I would be looking for a component that is heat sensitive. These types of problems are fairly easy to locate and resolve.

Please take this in for warranty service and update this when you find out the details.


Posted on May 04, 2010

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