Question about Daewoo DTQ-26S1FC 25" TV

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TV shuts off

My tv shuts off after 15 minutes. Turn it back on and it stays on for another 15 minutes and it will keep doing the same. I think it has to do with the timer circuit, ie.. "sleep mode". Any ideas?

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  • ramangireddy Jul 10, 2008

    Mine is also Daewoo,it was shutting down after 1 hr

  • Anonymous Oct 09, 2008

    i have one that stays on for awile(1-4 hrs) then turns off then you can turn back on after a few minutes then doesnt do it again then it might..

  • Anonymous Mar 14, 2014

    My TV turns itself off and on whenever it wants
    Day or night. How can I just shut it off. Because I don't use the sleep mode.



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There are some capacitors in the power area that need to be replaced. open the set and do some checking there and I am sure you will find the problem. good luck

Posted on Apr 08, 2007


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I'm having the same problem. I don't think it has anything to do with the Sleep settings, you can play with them all day & the only benefit you may get is forcing it to stay on for 90 min or whatever instead of 15.
(I've tried setting to 00, obviously the first thing that comes to mind is that it's a Sleep Setting issue, but I seriously doubt this. You can't even set the Sleep Setting to 15min anyway)

Instead, I'm pretty sure that the problem exists in the sound bar not recognizing that there is an active signal & is shutting off due to what it sees as inactivity (timing out after use). I've come to this conclusion due to multiple complaints of the same problem.

Some people are reporting that it's not happening when they watch movies, others have tested & said the radio stays on as long as you like, a couple people have posted that theirs works fine & only shuts off when they turn off about 15 minutes after they shut off the audio source, which leads me to think that this is what is going on, the system thinks the audio source (TV, Bluray, etc) is off & no sound is coming through. It must have a funny way of detecting it...

I will try a few tests & if anything works I will pay the results. One person claimed there's stayed on after turning their TV all the way up... I could try this but will have to turn TV speakers off (currently I am running both TV speakers & sound bar). Anyway, I'll keep digging, must be some way to get this to work, I hope...

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dvd is overheating its circuit. Keep the tray open to dry up condensation. then leave TV on standby to keep moisture out.

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You have problems with a condenser that allow the power supply to maintan an acceptable level of voltage in order to keep the TV on. take to a tech to be fixed. unfortunatelly, this problem needs a tech to take measures in the circuitry to find the component that causes the problem.

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When you let it sit for approx. 15 minutes it will come back on and usually stay on. I've also noticed that the color will fade in and out at times. during 15 mts of your sitting do you get sound & less brightness then problem in video or luminance section. if picture is dim & color will fade in and out at times then possibility of crt is getting less voltage on g2. if set is old then there is a possibility of crt getting weak. but if the above things are not there then problem in power supply. good luck

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the problem may be due to dry soldering in the power supply stage if it was with the lamp there would be red or green light showing the presence of the power to the tv after making it own some of the components get hot and it will make the the soldering point conectionless and after some time the heat sink get cooled and the soldering point gets connected and u will see the picture again it is a simple problem if u have a soldering iron u make it hot and re solder all the components in the first part of the circuit board and the problem if rectified

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