Question about Toshiba 57H83 57" Rear Projection HDTV

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Toshiba 57h83 hey, hows it going? my screen comes on for a minute then it goes blue and turns off and a red light on the front flashes. Any ideas?

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SOURCE: toshiba 57H83 rear projction tv

are you talking about the plexiglass glare screen?...or something else?...
i was trying to find this out in your previous post about this set...

Posted on Jun 03, 2008

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SOURCE: toshiba 57H83 rear projction tv


Posted on Jun 03, 2008

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SOURCE: toshiba 57h83 wont do nothing

that relay is supposed to engage power to the tv boards that control the screen.
you will have to take it to a oualified service center , because they have access to parts that are needed for repair

Posted on Oct 17, 2008

  • 23 Answers

SOURCE: Toshiba 57" HDTV no red in picture

I had the 65" version of that TV. Loved it, unfortunately it went bad as well. It sounds like the red tube went bad. The tube itself might sell for $400 plus. The installation will take several hours with the alignments which will need to be done. Then after all that you will start to have to worry about the other tubes starting to deteriorate. If there is any red in the picture then the tube is most likely the problem. At tat point I would say buy a new TV. The best bang for the buck if you want size and have the space for it would be the new Samsung or Mitsubishi DLP's. I just installed one at customers house. The 60" Mitsubishi is 1400 at Best Buy Good Luck Rob

Posted on Feb 27, 2009

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SOURCE: i have a toshiba tv that power up the light on the

Maybe I can help. This symptom is caused by so many different failures inside the set. Most commonly, convergence chips go bad. Next, capacitors get weak in the power and sub power supplies. And finally, the hyper module eventually needs to be rebuilt by replacing all low value surface mount capacitors. All of these repairs will be needed on your set. All of these repairs require test equip and soldering / desoldering equip. In most cases you can have the set repaired for 200-350 and expect the high end of that range. If you attempt repairing it yourself, you can usually check for open pico fuses on the board, then disconnect the convergence yokes to see if set comes up temporairily. The best I can do is to inform you of your options and what to expect. Overall, it is a good, long lasting set and if it is repaired properly the first time, you should get at least ten more years from it. Well worth it in comparison to a new set that commonly requires an extended service plan just to get through the first five years. Good luck, Russmann.

Posted on Oct 13, 2009

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SOURCE: toshiba 57H83 and no longer get any sound. Any

Most often No Sound with Toshiba 57H83 is:

1. TV has a Sound on-off switch on the input panel at the rear of the TV. Very hard to see, black on black. Used to turn off speakers if you use a separate or external sound system for speakers. Usually gets moved while connecting hd cables or dusting and vacuuming in cramped space at the rear of the TV.

2. Someone accidentally changed Sound settings with remote to CC (closed caption) or SAP. Turn off in sound menu and save preference.

3. Sound input plugs from external cable or sat box unhooked or wrong input.

Toshiba 57H83 no sound fault is not common. If you still have no sound, get local service.

Or troubleshoot yourself to determine if Tuner, IF, processing, sound demod, switching or sound output circuit is smoked. Then make an installation plan.


Posted on Feb 28, 2010

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2 Answers

Toshiba 57H83 will not turn on

there is some shorting in the main board

Mar 24, 2008 | Toshiba 57H83 57" Rear Projection HDTV

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No dislplay or sound

Could be the lamp has gone out.

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The toshiba 46h83 46in rear projection tv comes

the red flash you are talking about im assuming is the screen going red
that usualy means a red picture tube they break down
one way to tell turn the red screen control counter clockwise and see if you can control the tube gain
and then you can lightly tap on crt neck and i do mean carfuly and see if it flashes it most likely will and you would need to change the crt and reset it up

Nov 02, 2009 | Toshiba 46H83 46" Rear Projection...

1 Answer

Tv comes on for a few minutes then goes off

If you take off the front bottom panel of the tv wich is easy. Then you will see 6 tuning knobs at the bottom middle of the tv .the top 6 control contrast for the lights dont mess with those. the bottom 3 are the power to each is bottom left if your screen went blue it makes sense that the red is starting to go but if you turn down the power to it left 1/8 turn it should fix it for awhile .Its easy.

Jan 01, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Toshiba 57h83 wont do nothing

that relay is supposed to engage power to the tv boards that control the screen.
you will have to take it to a oualified service center , because they have access to parts that are needed for repair

Oct 17, 2008 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

Toshiba 46H84 tv turned off light blinking

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.

If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Sep 17, 2008 | Toshiba 46H84 46" Rear Projection...

1 Answer

Color issue

Replace 120k resistor on the blue video output module. Resistor is located next to the blue video output transistor (has heat sink). If you replace it with a 1/2 watt carbon type, it will probably never happen again. I recomend the same resistor on the red and green video boards at the same time.

Jun 17, 2008 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

Toshiba 43 inch projection set

Possible bad solder connections in convergence circuit or vertical deflection circuit. This happens in alot of equipment. After warm up, expansion of joint pulls connections loose. Recommend not running like this, could cause component failure.

Dec 22, 2006 | Toshiba 57H83 57" Rear Projection HDTV

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