Question about Toshiba 55H70 55" Rear Projection Television

1 Answer

Toshiba 55h70 turns self off

My tv turns itself off and red light flashes. started happening occasionally now every 2-3 minutes. have to unplg then plug back in to work or turn completely off. any suggestions?

Posted by on

  • 2 more comments 
  • diesel22can Mar 18, 2008

    I have the same problem. It just keeps clicking on and off. Could only stop it by unplugging. Any thoughts?

  • JD67 Mar 28, 2008

    TV shuts off light flashes unplug plug back in works for awhile

  • speedyrb Mar 31, 2008

    My TV will power up but will not never establish a set picture. The image is jumbled and shaded green. It will stay on for about 3-5 minutes in the scrambled state and then shuts itself off with the little red light blinking until its unplugged. How screwed am I on this?

  • Anonymous Apr 28, 2008

    My Toshiba 55h70 is expriencing the same problem. It will come on then turn off and the power light (red) will start to blink. At first I could unplug it then plug it back in and after a few times it would stablize that is when the picture would get distorted. Then green looks too wide in the center of the screen. I tried to align the pattern but it would not align with the red and blue. Could this also be the same issue?



1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

It sounds like your Convergence IC's have gone bad. This is a $300-$600 repair depending on where you live. I have recently changed them myself and it's not that hard if you have common sense and patience. If you do it yourself, you can do it for under $100.
The parts you need are 2 STK392-110 convergence amps and it's best to replace all 6 resistors that are related to the convergence amps as well.
Part numbers on the resistors are 24323129 and you can find then at

Posted on Apr 02, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

I have a 55" Toshiba Rear Projection TV and it works great for 30 minutes or so and then it just turns off. The picture is prefect as is the color...Then will not turn back on again, just flashes a red...

As your instincts have told you this MR.Techie is trying to rip you off. I think what you have is a faulty ballast. A ballast is a part in the projection tv that supplies power to the lamp. If the lamp is drawing more power than normal, then the ballast turns off and resets itself after a while. That's why the set works for a while before turning itself off again. A faulty ballast may reset even though the the lamp assembly is drawing normal power. You may also need to replace the lamp if it doesn't resolve the issue.It is a relatively inexpensive part but you will need the techie's assistance to replace it. Should cost you around 100-150$ for the repair.

Feel free to post back if you need more info.

Oct 24, 2009 | Toshiba 55H70 55" Rear Projection...

6 Answers

Toshiba TV, no power, red light flashing

Unplug the TV for 2 minutes and plug it back on.
It should work.

Feb 09, 2008 | Televison & Video

2 Answers

Plugged in, worked, turn on later, did not work

First thing i would do would be to check convergance amp ics

Jan 01, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 50" cinema series

Try to unplug and replug back the power cord of the
tv and turn it on again. Sometime this work.

Sep 09, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55" 55H70 model. Turns OFF, but won't turn ON until I unplug it from the wall first.

sounds like loose connections on the convergance amps ic's

Aug 22, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Power light flashing/ no picture

I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

Jul 11, 2007 | Toshiba 56H80 56" Rear Projection...

14 Answers

TV is not powering up and red light keeps flashing

I had the same red blinking led problem on my Toshiba Theaterview tv. I resolved by:
- Unplugging the tv.
- Press several times (3 or 4 times) the tv Power button.
- Plug the tv back in and press the Power button once to turn the tv worked!!!

I've had the problem before and tried unplugging the tv for a couple of days and that had also worked, but I this recent solution seems to be faster.
Good luck!

Jul 29, 2006 | Toshiba 55H70 55" Rear Projection...

Not finding what you are looking for?
Toshiba 55H70 55" Rear Projection Television Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75169 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2334 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides