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The volume on my tv goes very loud and then shuts off and when i turn it back on it keeps shutting off .so i think its the power supply board but im not exactly sure .if it is the power supply board how much is tha part?

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Its in the power supply board just check the capacitor

Posted on Oct 09, 2010

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You need to check the output voltages of the power supply to see which one goes off. It may be due to short circuits some where, if otherwise, It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this ic is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop.

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Hey there, from what you are telling me I think the problem is coming from your Power Supply board it sounds like it could be two things

one: the board might have gone bad and its not sending the corresponding voltage to your components and that is why it keeps turning off

example: works ok for a while then gets weak truns off and then gathers enough turn back on

two: the power supply could be over heating and it has a sencor when it gets to hot to turn off this is very rear though

please rate this solution !!!

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remove all the external connections connected to the tv.then un plug the tv wire from the power outlet.then after some time just plug only the tv wire back in the power outlet.do not connect the other devices and check if the tv is working as normal or not.if it does not works then

its the problem in the power supply board of your tv.
check for the fuse on the power supply board.
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also check for any loose soldering joints on the power supply board.
calling a tech is much advisable.if do not have proper technical knowledge.

it will not be too costly to get it repaired.
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