Question about Toshiba 40H80 40" Rear Projection Television

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40H80 Problem TV will not switch to non antenna inputs

My toshiba 40h80 projection will not switch from the antenna input to the video 1 or video2 inputs. When selected the TV just flickers and stays with the same inputs. Both coax antenna inputs seem to work fine. It is only the other inputs which I have a problem with. Anyone have a similar experience? Or an easy fix?

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Re: 40H80 Problem TV will not switch to non antenna...

Sounds like you have a bad tuner. It is not uncommon for solder joints to deteriorate over a period of time and loose continuity. If you are handy with a soldering iron, you can try to fix it yourself but I really recommend leaving it to a professional.

Posted on Dec 06, 2005

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Toshiba 40h80 red light blinking


I would suspect the problem is in the convergence circuit---only one simple way to know---get at and un-solder all 18 pins on both the STK chips it uses.

Once they are free try to turn set on--if it comes on one of the chips is bad and both will have to be replaced.
12_6_2012_12_54_51_am.jpg

Dec 05, 2012 | Toshiba 40H80 40" Rear Projection...

1 Answer

My tv toshiba 40h80 the red and yellow line up but the blue doint it moves up down but i caint get them to line up with the reds and yellow.


Ur convergence is dead.U must know how to solders?Must replaced 2 STK convergence ICS and some or all it resistors.Tries Websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost U $300 for parts and labors.

Mar 19, 2010 | Toshiba 40H80 40" Rear Projection...

1 Answer

Toshiba 40H80 TV - looking for original remote.


You can buy them at any of these sites:

http://www.toshiba.newremotecontrol.com/catalog_item.php?catnum=23306458

http://www.remotes.com/store/toshiba/40h80.html

or ebay


Aug 17, 2009 | Projection Televisions

1 Answer

Sound, No Picture


The only thing you can do is to unplug the tv for 30 min. Then turn it back on and see if that fixed it. If not call a repair man, you are most likely missing a power supply voltage or deflection voltage.

May 26, 2008 | Toshiba 40H80 40" Rear Projection...

1 Answer

Sync gone nuts on non-progressive signals


try to replace all the 10mf16v surface mount caps in the next-hyper unit. it is the digital scan card which is why you could get the higher res output devices to work. you can replace them with regular electrolytic caps if you cut the legs short enough. i would recommend using 2 soldering irons to heat both sides of the surface mounted cap at the same time then let gently pull the cap off.
******make sure you check the polarity of all the caps after you are finished****

Feb 17, 2008 | Toshiba 40H80 40" Rear Projection...

1 Answer

Toshiba 40H80 Rear Projection TV flickering & blacked out


try converence board going out on your unit usally about 300 bucks to fix ok thx nick

Feb 08, 2008 | Toshiba 40H80 40" Rear Projection...

1 Answer

TOSHIBA 40H80 projection TV - no sound / no picture


it could be, that would be the first thing i would do to rule out I would first check for loose connections on the board.

Dec 06, 2007 | Toshiba 40H80 40" Rear Projection...

3 Answers

Toshiba Rearprojector TV


you didnt say if the set was working?? if its not I would first try the power regulator IC in the power supply It will start with an STR#####.. This goes bad alot in these sets. Good luck

Apr 17, 2006 | Toshiba 40H80 40" Rear Projection...

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