Question about Sylvania 6620LCT 20 in. EDTV-Ready LCD Television

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Powers up then goes off in about 10 seconds

Our sylvania is 1 year old and all of a sudden the power won't stay on. When I turn the TV on it turns off in about 10 seconds.
Anything I can do?

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  • DonHulah Jan 18, 2008

    Have the same problem. It will always come back on but goes off in about 15-30 seconds after. I took the back of the set off and don't fine any real discoloration around the power supply. Don't know if it's economical to repair???

  • Anonymous Jan 24, 2008

    Same model # sylvania 20" LCD tv. After 12 month warranty period expired, we experienced the set going off after 3 seconds of power. Cost to repair exceeds the value of the set.........300.00 plus.......nice job Sylvania / Funai Corporation. This is the stuff that loses customers fast. Now I have written the head guy of the Funai Corp. warranty department to try to resolve this rip off.

  • KWRaasch Jan 31, 2008

    Same problem... Help!

  • Anonymous Feb 07, 2008

    This is the Same problem we are Having with ours, we bought it last November had we can't seem to keep it on for more than 15-30 sec. tried everything, guess there only built to last 12-16 months, Sylvania really knows how to make a Big Piece of Crap.

  • Anonymous Mar 06, 2008

    I am also having the same problem. The TV comes on and then goes off after about 20 seconds. The Funai Corp. cares not one lick about our problem either.

  • fur94 Mar 27, 2008

    Same problem as others. TV powers off after about 10 seconds. Is this a circuit board issue?

  • Buzz Beamer Aug 15, 2008

    I bought one of these for my mother. It stays on for about 5 seconds. I bought it over a year ago so the warranty probably won't cover it. I wonder oif there is a recall on this television?

  • sgerrald Aug 20, 2008

    I have the same tv and it just starting doing the exact same thing. I have had the tv for 20 months. I have tried plugging the tv into another outlet and it still powers down after about 10 seconds. So, it is definitely not the outlet.

  • mlmendes4 Aug 30, 2008

    We haven't even had the TV for a year! We just bought it last Christmas. It was on and fine for a couple of hours last night when all of a sudden it just turned off. I tried to turn it back on and it came on for 5 - 10 seconds and the screen color goes dull and it shuts off. We have tried unplugging everything, different outlets and I even ran an industrial extension cord from a different room to try a different fuse source but nothing works! Is the TV completely dead or can it be fixed either by us or a repairman for reasonable price.

  • Anonymous Sep 30, 2008

    Same issue here, tried the plug idea with no avail.  Any ideas?

  • jjdralliw Dec 14, 2008

    My 6620lct turns off after 10 sec. I noticed that the middle bulb is out. I suspect this is the reason it shut down. Does anyone know the part number for the bulbs and where can I order a new bulb?

  • dvmapes Dec 14, 2008

    Same problem as others. Mine is about a year old. I turn it on and within about five seconds the sceen goes dim and then shuts off. Seemed to happen for no reason

  • Anonymous Apr 26, 2009

    Same as everybody else. Do not buy Sylvania.



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Transistor Q601 (K3869) is over heating. This is obviously a design flaw in the power supply. You can either extend or modify the heatsink or have some genious wire in a colling fan in the back cover.

I found the problem after running a common house hold fan on it with the back off. TV continued to run. Unplug the set before touching the heatsink after the problem occurs.

Posted on Oct 08, 2009

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This particular model has a history of this problem.

This sounds like a safety feature built into the television. It may be trying to protect itself from an unsafe electrical source. The more expensive the equipment, the more sophisticated the power supply that converts the power from your outlet into your television. There could have been a lightning strike that has disabled the tv. Or it could be a faulty outlet.
Before called for a technician, I recommend plugging the television into a different outlet. use a good quality extension cord if necessary. You may find that your outlet is not polarized correctly.

Posted on Jun 20, 2008


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