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joan hand Posted on Feb 21, 2017

I have a Toshiba TV model#36a43 the power light is flashing have no picture or sound have unplugged TV and replugged TV 10 minutes after still blinking red light

5 Related Answers

Vista Electronics

  • 1694 Answers
  • Posted on Feb 01, 2008

SOURCE: Picture went off then Red light blinks all the time

Not an easy fix....requires chassis pull, careful soldering and
replacement of parts and fuses.....would you like step-by-step?
........................T.

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Anonymous

  • 1 Answer
  • Posted on Aug 11, 2008

SOURCE: TOSHIBA TV NO SOUND NO PICTURE, POWER LIGHT IS ON

I have a problem

Anonymous

  • 10594 Answers
  • Posted on May 19, 2009

SOURCE: TV powers off after 10 seconds of powering on....

Thats great, Please rate solution.

Anonymous

  • 1077 Answers
  • Posted on Jul 01, 2009

SOURCE: TV won't come on - get a blinking red light instead

Most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you the flashing red light codes, circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Anonymous

  • 1 Answer
  • Posted on Aug 29, 2009

SOURCE: tv shuts off spontaneously. red power light blinks.

re: sony flat panel lcd tv mod. # klv s 40a10.
No power. When power button is pressed, nothing happens.
The stand-by at the power supply ( cn6201) measures to be 3.47 v. instead of 5 v. However, when I unplug cn6201 (5 pin connector) I can read 5v. at the power supply.
Any suggestions?

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If your TV has sound but no picture, start by making sure that all of the set-top box cables and cords are connected and the set-top box is turned on. Also check to see that the TV is set on the correct channel and that the DVD player is not on.

If the power light is flashing, it could be excessive or shorted voltage or that the capacitors are malfunctioning. In this case, replacement capacitors or a new power board is in order. Contact a professional for help.

If you hear a chirping sound, that is the shutdown circuit activating, indicating a problem with the power supply.

For more tips and tricks, check out No picture on TV for troubleshooting steps and solutions. I hope this helps!
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