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Hello The problem I have with my TV is that sometimes it switches itself into standby mode without me pressing any buttons on the remote, then when I switch it back on using the remote the screen flickers 2-3 times then it switches off again, this process is sometimed repeated upto 7-8 times before I get the TV to switch and stay on, sometimes it does it after I've switched on to begin watching telly and other times it happens after I've been watching for some time, its a really annoying problem and sometimes a hard reset (switch mains power off) is the only way to cure it, yet on other days the TV works faultlessly, is this a known fault or something new to you? I've had the TV since the beginning of the year.

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Hello,

Its 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.
Hope this help in solving the problem, Take care.....

Posted on Sep 13, 2010

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avforums.com/forums/lcd-led-lc­d-tvs/601553-samsung-service-m­enu-research.html

Another post:
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Method 2
Turn the power off. On the remote, press Mute followed by 1, 8, 2, Power in sequence.
Method 3
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End quote.
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or
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