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I have a 36" Toshiba TV model 36A50. When I turn on the set it has a 1/4" bright line with color and movement/black background. I have sound. In the past I could turn off the set or unplug and it would correct it. Two months ago I took a low pressure air nozzle for the first time and blew out the inside with alot of dust on the circut board and tube. We use this set about 40 hours a week. Could it be time to replace the set if too costly for repair.

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HO
You have what is termed a vertical collapse, or complete failure of the vertical circuit. It is probably dry solder joints about the vertical output IC. Resolder and replace capacitors that are near the IC heatsink also. They probably caused the failure of the soldering in the first place from overheating. Replace the chip also if you have no success. Check also low value resistors about this stage that supply power to the IC. If this makes no sense to you, contact a repair guy. May cost you $80-150 depending on how many parts need to be replaced.

robotek

Posted on Aug 06, 2008

  • Graeme Ross
    Graeme Ross Aug 07, 2008

    Hi again, how did you go getting your problem resolved. Can I assist you any further?

    robotek


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I think that you may end up better off getting a new set, to be honest. My 48" rear projection JVC TV lost all three of its guns after a few years. Total repair cost was $900 (thankful for warranty now - that was not much below the purchase price of the TV). The unfortunate thing is, labor and parts rates are so high in many ways that it's almost as if the TVs are becoming throwaway items. More than a small problem, and you spend a tremendous amount of money repairing it, when you could likely spend a few bucks more and get a new TV with a new warranty. The fact that you were once able to clear the problem by unplugging it, and now you can't, shows that the issue is getting more serious and parts are going to die before too much longer.

I'd call around town, find a repair shop that deals with TVs, and ask them at least for an estimate on the cost and timeframe of repair. I have a feeling that a couple of opinions from shops will show you very clearly that you may want to seriously consider upgrading or replacing your existing TV with a new one.

Posted on Aug 06, 2008

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1 Answer

Blinking red light at power button if you slap the set it will come on but any movement will turn the picture off and the blinking light back on


this is a dry canaction problum in pcb do not slap tv.
* cont. tv tech. nr. at your home solve this problum in fuw mint. it is not expanciv but. if you slap tv then posibal spear damage in inside tv.set.and he is very expanciv.

Oct 31, 2009 | Toshiba 36A50 36" TV

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36A50 Digital ready?


Hi duce1500,

Unfortunately, the 36A50 is not HDTV-ready. That means you will need a converter box. Here is a link to the model's specs, which includes this information:

http://www.amazon.com/Toshiba-36A50-36-TV/dp/tech-data/B00004YMBV/ref=de_a_smtd

I should mention, however, that if it's connected to cable (or certain satellite services), you won't need a converter to watch the TV - you'll receive the digital signal (although you won't have the 1080-pixel HD resolution - the 36A50 only has 850 lines of resolution).

I hope this helps. Please let me know if I can be of any further assistance.
H2H

Dec 13, 2008 | Toshiba 36A50 36" TV

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Color goes to black and white


dear friend i think you have techinical problem if you are not a tech.you need someone with the skills to replace some bad caps on the main board.



caypianan@yahoo.com

Sep 30, 2008 | Toshiba 36A50 36" TV

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No picture only sound, Toshiba 36A 36" TV tube type


my friend if you open the tv carefully look to see if the tube itself has light, or if you have high voltage i coulbe many different things.wish luck!!



caypianan@yahoo.com

Aug 10, 2008 | Toshiba 36A50 36" TV

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36" 36a50 tv won't turn on


My 36A50 suddenly shuts off losing audio and video. The red light on the on/off switch continues flashing until the set is unplugged.

Jul 16, 2008 | Toshiba 36A50 36" TV

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You have a number of bad capacitors in the vertical circuit. If you can solder, you should be able to repair this yourself. I'll look up your model to get the parts needed.
Dan

Jun 02, 2008 | Toshiba 36A50 36" TV

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Toshiba 36A50 Horizontal Line in the middle


  • the problem is most common & simple to repair at your home only at minimum cost by skilled technician.
  • as per problem is concern it is due to electrolytic capacitor failure in vertical output stage.
  • hope this will help
  • good luck.

 

Oct 21, 2007 | Toshiba 36A50 36" TV

1 Answer

Toshiba 36A50 - No Picture - Just Bright Line


THE PROBLEM IS IN VERTICAL OUTPUT CIRCUIT MAYBE DAMAGE SOLDER CRACKS

Jul 06, 2007 | Toshiba 36A50 36" TV

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