Question about Toshiba 43H70 43" Rear Projection Television

1 Answer

Will not come on

Was watching tv i turned it off now it wont come red light comes on then makes a ticking sound just one time then red light goes out

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  • TQUINTANA May 29, 2008

    was watching tv i turned it off now it wont come red light comes on then makes a ticking sound just one time then red light goes out i have the same problem but my red light blinks off and on

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  • Toshiba Master
  • 8,617 Answers

Sounds like a problem with the stand by votages. Possibly a low voltage regulator. Is the model number a 43H70?

Posted on May 03, 2008

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I have a 56 in hdtv Panasonic tv will not come on green light flashes 20 times then goes to red. Help, on disability fixed income & cant afford to get repair or new tv. Please help, as soon as poss


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Oct 24, 2015 - More about : power light flashing wont turn ... December 20, 2013 10:12:55 AM ... sound like it is coming on then it shuts off and the red power light flashes slowly. ... 50in Plasma tv power light is flashing 8 times and won't turn on. ...tv to come on bcause the power button keep blinking my tv will not come on.

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1 Answer

TV turns on then cutts off


that buzzing is the high end power trying to turn the lamp on.... the electrical current and shock is what turn your lamp on your tv which is what the buzzing is dont worry thats normal...however your solution is buy a new lamp for your tv but make sure its the right serial number for lamp u cant just buy any lamp. best place to buy one ebay.... as in the lamp still trying to light up its only because the electrical current going into the lamp and then cutting off causing the red light on your tv....so other words all it is is the lamp... CAUTION!!!! those lamps get up to 400 degrees unplug tv to ensure no electrical current.... hope i helped.... JACOB WINKLER

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1 Answer

I replaced the lamp im my vivitek 56 inch dlp tv. But it still wont turn on. The light goes from green to red and it makes a sort of high pitch sound then stops


my vivitek RP56HD22A 56" dlp tv has a new lamp and will not turn on. when i push the on button is whines and wont come on

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1 Answer

When I turn on my TV (KF50WE610), it makes ticking


Hi,it sounds like a problem with your ballast.The ballast is the board that powers the lamp .When it starting to fail it will make clicking sounds.The part is around $40-$60 depending where you look for it.I believe there's instructions on youtube.Have a bless one!

Feb 09, 2010 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Tv will not come on


Power Supply Board.. most likely circuit Q777.

http://www.tvrepairkits.com or partsstore.com

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1 Answer

Lamp light turns red


Yes this is the signal for a bad lamp. Other things can cause this. 1. Look at the new lamp. make sure it still looks good. not broken with little glass pieaces in it. 2. When you turn on the tv, put your ear to the lower back part of the tv near the middle. Listen for the start up of the color wheel (a low high pitch sound only at the start up of the motor). If this is good you will here a ticking sound only if the lamp dose not light.

Now with all this info. If the lamp lights (as seen from the back of the set) and goes out after a few seconds and you did not here the color wheel spin up, the color wheel is bad.

If you here the color wheel spin up and no ticking sound, the Ballast is bad.

The ballast part no. 939P978010

The color wheel is not avialable from Mits. You will have to replaced the light engine. It cost to much. Just buy a new tv.

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1 Answer

Tv wont turn on after fixing convergence problem


Check the pins with a strong magnifying glass to make sure they are solderd correctly with none of the pins bridged with solder, then recheck all the wire connections to make certain they are correctly hooked up.

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1 Answer

Changed bulb, now tv does nothing. . .please help


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1 Answer

Red power light keeps blinking and wont come on


The first thing to try is to unplug the unit from the wall for about 15 minutes,if this does not work you will need the assistance of a servicer to diagnose the problem,if you are familiar with tv service you can check the horizontal output transistor for a short,sometimes it fails for no reason and other times it goes bad along with the horizontal output transformer also know as flyback.Be careful if you decide to check this yourself.

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