Question about Zenith SY2572DT TV

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Power Television sounds like it wants to power on, but doesn't. Hopeless? If it can be repaired, is it usually very expensive?

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Re: Power

Hi, I have a Zentih Model Number SY2572DT and I can not get any channels except 2 thru 13. I tried using the menu, but cannot find where to change to cable from antenna. Can someone help?

Posted on Jan 28, 2008

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I have a sharp television 14 inch. the problem is when i switch on the primary power switch the led turns red then pressing the secondary power the the led turns green then just about a second a click

It is self-shutting down Something electrically bad inside. Could be anything. Usually some type of overload on power supply. Need training to troubleshoot.

Nov 23, 2014 | Sharp Standard (CRT) Televisions

3 Answers

Sony Trinitron Model KV30Hs510

Most likely a part inside the tv has failed, and would need to be replaced. Contact Sony, your dealer, or a local professional for a analysis and asisstance or repairs.

There are hardly any magic tricks we could do to make it work.

If you need more asistance, let me know. Good luck.
If someone knows better, please post.

Mar 29, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

No picture or sound

Does it make a squeal sound while plugged in to power? If so, possible horizontal output shorted. $150-$200 about.

Apr 17, 2010 | RCA 27V514T 27" TV

1 Answer

When we turned on our large screen panasonic tv there was a pop, then no sound. The picture is fine. It is several years old. Not a flatscreen. Large speaker at the bottom.

It sounds like the power transister for the amplifier has blown. Inside, it is usually the largest transister connected directly to a heat sink. It will require the ability to solder (and unsolder) in order to affect the repair. Look up the transister from its code inscribed on the case to find a replacement. Power transisters are usually not very expensive. You can go to this link to see what a typical power transistor looks like.

Jan 26, 2010 | Standard (CRT) Televisions

1 Answer

Power surge-no picture or sound, just red blinking power light

Any malfunction associated with a blinking redlight usually indicates a circuit problem or defective component. Unfortunately, the days of taking off the back cover of your TV and replacing a defective tube or fuse are long gone. Proper servicing will require troubleshooting procedures that can only be performed by a qualified electronic repair facility or professional television repair person. Ask for an estimate and a realistic appraisal of whether the set can be adequately fixed. Depending on the age and condition of your TV it may not be cost effective to repair.

Sep 13, 2009 | Panasonic CT-36HL43 36" TV

1 Answer

Blurry picture

no it is not hopeless! if you want to do this procedure I can help you adjust the main screen focus inside the television on the FLYBACK TRANSFORMER but you will need to take it apart unless there are access holes in the back for the adjustment.

Oct 13, 2008 | RCA F32450 32" TV

1 Answer

Black Screen

The first step here is to isolate the problem. You need to know if it is in your TV or DVR. Unplug your TV from the DVR and connect it directly to the wall outlet. Then connect a TV antenna, or a small thin wire, to the F connector on the back of the TV (this is the threaded connector - where you plug your cable). Try searching for some air channels and see if you get any channels at all, and post back.

Feb 26, 2008 | Apex Digital AT2708 27" TV

1 Answer

Television won't power up

The set has gone into protection overload status.

You must unplug the power cord for 3 or 4 hours and power it up again.

If the hard reset above does not bring it back to life it needs technical service. There are about 10 sections that would need to be checked to see where the overload conditions are causing the problem.

As a general rule this type of failure is severe and expensive. Typical costs of repair are always over $200 and most often closer to $400.

Common failures are main power supply, high voltage supply, deflection amplifiers and so on.

This is not a user or home remedy type repair. If you are lucky it may be something not so costly, but experience tells otherwise.

Hope this helps.

Good Luck
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Feb 02, 2008 | Standard (CRT) Televisions

2 Answers

Blinking red light

If your Sony TV is hooked up to a good signal and is set up correctly, but only clicks and has no picture or sound, and even the menu will not show up on the screen, then it means that the main power supply has stopped working. I usually find that a small crack in the solder joint of the horizontal drive transformer or a shorted flyback will cause the large horizontal output transistor to short out, and this shorts out the switching transistors in the main power supply which then causes the Sony 0.1 ohm fuse resistor to open up. I have also seen power surges or power failures (brown-outs) cause the switching transistors to short out. In any case, the set absolutely should be serviced by someone experienced in repairing Sony TV's.

Aug 05, 2007 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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