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I am repairing a slimflat tcl-tv model #21M63US, when i turn it on, it will turn off after a minute, sometimes when not used for a long time it takes an hour before it turn off. I notice that the blue led indicator blinks? Anyone helps me with this kind of trouble? God Bless!

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6ya6ya
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Posted on Jan 02, 2017

  • 8909 Answers

SOURCE: my tcl tv model tcl

A nice little Control IC but when they fail ithey take out a lot of components around the power supply especially the output FET rather catastrophically for the power board.
I would look elsewhere for your fault because if there is a flashing light, the microprocessor has power and that comes from the power supply.
Look for open circuit fuseable links.
Hope that helps.

Posted on Dec 10, 2010

  • 1 Answer

SOURCE: Phillips 42FD9954 plasma will not turn ON

I have a Phillips 42FD9954/17S and every time I try to turn it on I also get the power red light blinking and sometimes it will try to turn on with a bunch of clicking noises and it will be green for a while then turn red. What I do and its very weird but works, put a blow dryer on hot and blow it under the tv on the side of the power button for about 10 minutes and it will turn on. I took it apart and there is a heat sink that if i put the blow dryer directly onto it on heat it turns on in less than a minute. Can someone tell me how I can fix this heat sink? I cant take it off. I want to put some thermal compound to see if that works. Give it a try I promise it will work. The Red Light has to be on put the heat on it and then press the power button, if you hear it clicking and green then back to red you are almost there. Keep putting heat on it and it will turn on.

Posted on Mar 31, 2009

  • 67 Answers

SOURCE: 42PF7220A/37 Blinking red led (7 times)

sounds like your tv in shut down mode why lamp needs 2 be replaced nominal cost 120 200$

Posted on Jul 25, 2009

  • 1779 Answers

SOURCE: My LCD Sony HD tv turns off after few seconds.

You need the Inverter Board.

Posted on Sep 14, 2009

SOURCE: Sharp 52" Aquos LCD Will Not Turn ON-Blinking LEDs

I had a similar problem. Fleeting video, then audio only for few seconds and then nothing except the green power LED blinking on and off.
I changed the power inverter board, backlight inverter boards and power supply board but still the problem is not gone.

Just 18 month old TV and out of warranty.

Posted on Sep 20, 2009

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