Question about LG RE-44SZ21RD 44" Analog Television

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I have an LG RE-44SZ21RD, turns off after 5 minutes of use

I have an LG RE-44SZ21RD, it had a new ballast board on staurday, now two days later the tv randomly shuts down/ after only 5 mins didnt do that before the ballast board went, the lamp was inspected and its fine, any help please?

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It might be worth checking that you haven't accidently activated the tv's sleep timer, I did on my LG DLP !!. always check the obvious first.

Posted on May 17, 2010


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hi good day
before you come up that the main board was the problem lets verify first to narrow down where the problem came from. now as you said you have been tried to put a backlight just to know if their is a problem with the backlight but still you have black screen so which mean the inverter ballast is possibly good as will as the backlight. ok here is on how will you trace the main cause you need to turn on the tv unit then check if their is a INV_ON voltage around 3.3V coming from processor going to inverter ballast, now if do not have voltage turn off the unit then disconnect the connector going to the ballast board and turn on the unit check again the INV_ON if still no voltage come out you have bad processor from the main board. now if the case is the INV_ON voltage is present their is a shorted component at the ballast board that is why the screen is going black after you turn on. if their is an error detected the main board will cut off. hope this will help you thanks for consulting through fixya god bless.

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Aug 26, 2009 | LG RE-44SZ21RD 44" Analog Television

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Normally when this happens, this is because of the power supply board is going threw some abnormal fluctuation. i would check this board for minor solder breakage.

Feb 06, 2009 | LG RE-44SZ21RD 44" Analog Television

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LG RE-44SZ21RD 44 whihc doesn't start

i think you'll find the lamp needs replacing

May 15, 2008 | LG RE-44SZ21RD 44" Analog Television

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