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Toshiba 42H81 lost picture

Picture went off after a couple of hours of use. The red light on front panel flashed. We unplugged overnight and it was fine in the AM. We went through this routine for about a week until the picture didn't come back on at all. Can we fix it?

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  • pattymc May 12, 2008

    Is there a schematic where I can locate where/what the "vertical output IC" is?

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Try resoldering the vertical output IC.That may help the problem

Posted on May 12, 2008

  • Sonny Berry
    Sonny Berry May 12, 2008

    I dont have one but it is attached to a small aluminum haet sink and it will usually have vertical stamped on the board next to it and it will have about 7 pins

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1 Answer

No picture or sound


Hi,

Looks like a power supply issue the only solution to fix this up is to get it repaired.

Goodluck..

May 03, 2008 | Toshiba 32HFX72 32" TV

1 Answer

Toshiba theaterwide tv turns on and off on it's own and picture is messed up


I presume you unplugged set for a while and plugged it back to see if problem clears (allows set to reset).

If whatever picture you see looks 3d or colors skewed that is convergence problem.

???

Apr 20, 2012 | Toshiba TheaterWide 46HM84 46" Rear...

1 Answer

I recently got a Toshiba 42H81 that someone didnt want anymore and the problom is that when you turn it on no picture or sound comes on just the red light keeps flashing, what could this be and how much...


hello the led is flashing this is giving you an error code count how many times it flashes then do a search on google it may tell the you the fault good luck

regards
shaun

Jul 04, 2010 | Toshiba 42H81 42" Rear Projection...

1 Answer

My Toshiba 42H81 has no picture and has a red blinking light by the power button. Still have the audio from my Tivo coming in but no picture!


If it shuts off and then the power light starts blinking red or if it never gets picture and the power light blinks red constantly that is usually indicative of the convergence ICs (STK 392-110). You never want to replace the ICs without also replacing the resistors that are associated with them. There are usually 6 resistors, one for each of the colors and there corresponding direction, IE Red horizontal, red vertical, blue horizontal, ect. You will find them right where the STK 392-110 ICs are. Right in front of them. You can get the parts from www.bdent.com They carry the ICs and the resistors. If you do not feel comfortable completing this repair I could do it for you if you send me the board. My email address is: missionelectronics@sbcglobal.net Cost = 375.00 and that includes all parts.
Good Luck.

Jun 25, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

TOSHIBA TV NO SOUND NO PICTURE, POWER LIGHT IS ON


the lamp in the projector might have went. try replaceing it. to do so try

ADTECH SYSTEMS they may help

there in mass.
call David Crepeau at 978 261 1087 tell him Ryan Bolduk sent you
depending where you live. They maybe able to send someone out from there sub company

Sep 18, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

No power


Replace Convergence IC's STK392-110 and any burnt resistors
& check fuses F851,852,853,etc.........................T

Aug 11, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Dark Picture on my 5 year old 42H81


Any horizontal or sqiiggly lines in the picture or just a loss of light level?

Nov 07, 2007 | Toshiba 42H81 42" Rear Projection...

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