Question about Toshiba 42H81 42" Rear Projection Television

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Toshiba 42in 42H81: Tv needs to warm up?

When 1st turning on our television, the set seems to need to "warm up". The images are psychadelic colored and wavy/staticy(?). After about 20 minutes, the tv and its images are perfect.

What do I need to replace?

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You have a common problem with this set. The cuicit known as the hypermodule is failing or more specific 11 micro capacitors on this board is failing. it would be best to replace that board but,,,, that board is hard to find. we at the shop or most shops can repair that board. average cost at my shop run you 220. I cannot recoment this repair for a novice. The soldering requires a magnifer twezzers and experience, I have damaged a couple hypermodules before i finally was able to fix one, very delicate and like i said unavailble. Like i said this is fixable. you can contiune to watch but the "warm up time" will get longer

Posted on Nov 17, 2008

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When I turn on my rear projection tv & the tv is cold the color will float,the picture will shake side ways for about 15 minutes.what can I do to fix the proble?


You did not provide a model so I am not sure of the type of set u have. Wheather it be CRT, LCD, DLP or LED. My 1st guess regarding "color float" is possably the convergence board/section of your set. And the warming up issue could be the result of cold solder connections and/or faulty caps on 1 or more circuit boards. Search your model number through the internet for clues.

Dec 08, 2012 | Toshiba Projection Televisions

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Toshiba 42h81


Heckler, your tv has blown parts in the convergence circuit so you need to stop pulling plugs or you will do more damage to the set. The convergence IC`s will need to be replaced and probably 1 or 2 support resistors, Then the set will have to be re-converged, the shop you talked to is correct that it`s a common problem, mine failed 8 months ago in my 53" Hitachi. $400 to do that repair is pretty pricey BUT it really depends on where you live, Major sized city`s charge big rent, taxes are higher etc. etc. so tv shops overhead is higher, I would get out the phone book and start calling all the shops in your area for price quotes. Any questions??? email me back, hope this helped, Happy Holidays BMW Rider

Dec 01, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

I have a Toshiba 42H81 42 in. Rear Projection Television. The picture has shadows like you would watch a 3D image without glasses. I ran the focus on it and the vertical red has noise in it and at the end...


Please do us a favor and rate this solution after reading.

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Please do us a favor and rate this solution after reading

Jan 31, 2011 | Toshiba 42H81 42" Rear Projection...

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What is cnveyance setting for


Convergence setting is made to align the three color tubes to get the best possible image. The "wobble" that you mention is the begining of a convergence problem and the IC's that control convergence will need to be replaced - costs $200-$400

Oct 07, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

There is blue yellow color blur on the screen with cable or dvd


Hi,
This problem is of "CONVERGENCE". You have to replace the convergence IC's which is better to buy a new one TV, Just contact any expert and replace the convergence IC's and your TV work fine again you need not to buy a new TV.
Thanks for using fixya.

Jul 24, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

42h83 42in. rear projection


is it set to video input or it could be a wireing problem.

Sep 16, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

No image on my TV


Bad hyper module = no longer available = have qualified tech
rebuild yours = replace bad caps on board...............T.

Dec 08, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Wavy picture except when displaying a 1080p image


Elsewhere! Bad hyper board =bad caps on board need replacement = find a different tech who has heard of this repair or
have him research fixya / Toshiba/ 42H81 / hyper board ......T.

Oct 14, 2007 | Toshiba 42H81 42" Rear Projection...

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