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The tv keeps switching itself off at random, sometimes it stays on all evening and other times it only lasts for five minutes, then needs to be switched off nd left for a few minutes before being turned back on.Please help

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This problem is exactly the same with my tv, just remove the battery of the remote. if it stop on & off, then clean the remote

Posted on Jun 28, 2009

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Samsung TV model LN32A450C1DXZA, after turning the TV on it will turn itself off shortly after and then turn itself back on shortly thereafter. Then it repeats that several times before staying on.


Hi there,

If the tv is still under warranty, this can be repaired at no charge.

However, if not under warranty, you will need to have the CAPACITORS on the main power supply circuit board tested (or replaced).

The capacitors responsible for the power supply can sometimes fail - open the back panel. If the capacitors on the main power supply board look too fat, or signs of burning near the solder joints, then you've found the problem.

Hope this helps.


Cheers,

Scott

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I must say this is a wierd problem here. First of all, make sure that the T.V. has enough space, and the cables arent layed on each other, give each cable its space. Now, try to check the main T.V. cable, is it strongly plugged in? because it should be, might be that your cable is weak and gets loose sometimes, so try to plug it in in a strong way. Keep me informed.

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1 Answer

Toshiba 27af45 repeatedly turns itself off. Sometimes (usually) every few minutes, other times will stay on for hours. Works perfectly otherwise.


The fact that the television stays on for hours and other times turns in five minutes shows that your problem is intermitent .A defective component in the power supply is probaly causing the B plus voltage to go up.The TV can also have a dry joint which looks more likley i am curtain if you gave the TV a firm tap to the side when it come off it would come on back. Try it .

Dec 29, 2010 | Toshiba 27AF45 27" TV

1 Answer

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  1. Replace power supply module.

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1 Answer

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Sounds like it could be a poor connection in the power plug or a ' dry joint ' on the power board, if it's the latter, it will respond to light thumping at the side of the tv. If that's the case it needs resoldering by a technician..
good luck !

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Hi

you have defective power oscillation!

Thanks!

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My LG LRH-880 HDD/DVD recorder sometimes stops recording by itself, before the end of the programming and even if there is enough disk space left.


Somehow, my HDD/DVD recorder recorded correctly 2 times last night, even if I did not do anything specific to fix. I will keep an eye on new occurences of this problem, but it appears at the moment that the issue disappeared by itself.

Sep 13, 2008 | LG Televison & Video

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there is a casing stat which senses overheat. this can be due to lack of ventilation if a built-in type or a fault with the fan

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Sharp tv changing channels


Well, the only thing that seems to be working so far is to plug AV cables into the "input 2" ports (on the front of TV). I plugged in my PS2, without turning it on. It has not switched at random since (about 30 minutes - it had been switching off and on for the past 2 hours). Anyone else have similar success?

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