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TV does not stay on, after its been switch on

The TV turns off by itself, right before the screen begins to display picture

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Re: TV does not stay on, after its been switch on

I have the same problem, I sent it to Circuit City service and they said that they have to replace the power suplly assembly $500+ repair. I have tried to find the parts online, but no one sells it.

Posted on Jan 12, 2008

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ALBA tv screen turns itself off, but the volume stays on, what's wrong with it? how do I correct it?

Might be some loose solder terminal/s at its horizontal output section. The set should be checked.

May 11, 2012 | Proton MM2701VT 27" TV

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TV screen stays bleu and dos change to normal raster

Check for any loose soder terminals at the video output card. This card can be located on the neck of the picture tube, directly pluged into it.

Apr 11, 2012 | Standard (CRT) Televisions

1 Answer

My tv screen went completely black

If its worth fixing depends on age of set and what it cost.

The place to begin is someone needs to open the set and check a few things------the click is a mechanical relay coming on and likely going right back off.

The problem could be minor or major.

You might want to begin by calling local shops and see what they charge for an estimate of repairing----should tell you if you want to proceed or move on and replace this set.

Mar 16, 2012 | Sanyo HT32546 TV

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I have a GE 31GT740 31" TV That turns itself off and then back on every few seconds. There is now a broken (dashed) white line that goes from the very top center of the screen to the right side. The...

I would be concerned with the vertical IC. This IC has pins that have separated from the board itself. You will note the area under the vertical IC is almost black. It will do no good to resolder this. You will need to replace the vertical IC with a new one. And be sure to replace those electrolytic capacitors near and next to the vertical IC. Bad grounds on the this IC will cause your TV to shut down. Also inspect the rest of the TV board. In some cases the retrace cap will always need resoldered! But please inspect all areas of this board for bad grounds and resolder as necessary! Good solid grounds will give you a dependable set. Thanks for asking and show a few hands of support!

Mar 13, 2011 | GE 31GT740 31" TV

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sounds like a vertical problem, usually you'll see one white line across the screen, but one I worked on would come on and the bottom half of the picture was gone and there were lines across the top of the screen.

If you know how to solder & can find the vertical output chip then you could try resoldering the pins. If this doesn't fix it then it needs new parts.

Mar 08, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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Panasonic CT-27L8SG displays gray screen and white hoizontal line

Is it still under warranty?
If not I would find a good TV Service Shop and have them check out the power supply as there more than likely a 'Capacitor' much like a battery that is going bad.
A/V Media Guy

Nov 22, 2009 | Panasonic CT-27SL14 27" TV

1 Answer

My Samsung DLP hln567w tv has NO picture on all

If the Lamp ignites and stays lit, but screen is completely black, not even the on screen display, then it is likely a bad DMD board.

If the lamp ignites and then turns off after a couple seconds then it is likely the color wheel is seized.

If the lamp never fires, but the TV clicks a bunch of times, then it could be a bad Ballast or the Lamp itself.

Sep 18, 2009 | Samsung DLP HL-P5663W 56" TV

1 Answer

Tv turns on and off by itself

Picture tubes rarely go bad. You have a bad connection or something on the circuit board that is breaking down due to the temperature change . Probably an easy fix. Not something an unqualified person can do though. Your local shop should fix this for about $60-100.

Jul 17, 2008 | Philips 25PS40S 25" TV

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Samsung TV stopped displaying picture

No picture but sound can mainly be of two problems, most of the times it is caused by a faulty vertical deflection ic, you can diagnose this by slightly increasing the screen voltage by turning the screen control on the LOT, a horizontal line will appear if the vertical ic is shot, and the other problem is the CRT base, but this is less common for shot base won't go off at once, it will show picture faded in the beginning. Now another problem could be the horizontal output transistor, if the tv has a high power sound output, the sound power supply will come from smps itself instead of from LOT, check that too, to confirm this, check if the CRT filament is glowing. Good luck.

Jan 17, 2008 | Standard (CRT) Televisions

2 Answers

TV picture was warped, no it is black, but the power light remains on...

the problem you are having is in the power supply you can go ahead and take your set to a repairman o look at your set good luck.

May 02, 2007 | Philips Magnavox MS3652S 36" TV

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