Question about Toshiba 42H81 42" Rear Projection Television

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Toshiba Model # 42H81 Picture Problem

Color looks bad right now. We tried adjusting the colors. The only way the picture looks good is green. Does this sound like we may need a new part?

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Re: Toshiba Model # 42H81 Picture Problem

Can you describe the issue a little more? It may be a convergence issue which is quite common on big screens. But there are quite a few issues that can cause a bad picture.

If it's convergence, you'll be able to tell by going to a news channel and looking at the text. If the convergence is bad you'll see a ghosting like image of 2 or 3 letters for each one that should be there.

Posted on Nov 25, 2007

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If can speak English I can help as my Spanish is limited---the convergence of green cannot be adjusted except in technical menu and if bad needs both the stk-392-110 chips replaced first.

May 29, 2012 | Toshiba 42H81 42" Rear Projection...

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Picture looks 3d, color is to far out of adjustment

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai2_bing.gif,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya

Apr 22, 2010 | Toshiba 42H81 42" Rear Projection...

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TV picture is red.

Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.

May 15, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 65H14 is all green... Tint doesn't change it..

As TVs age, the rate at which the CRTs begin to decline in terms of light output increases. If you go into the customer menu and adjust the color setting to zero. ( no color) observe the image. Is it good gray scale? Or, is the image still green tinted? If so, its definitely a problem with the CRTs( picture tubes) You may need to just re-adjust the screen settings for the CRTs or it may be more serious, a CRT may be bad. Replacing the CRT is a job for an expert and will cost $500-700.


Feb 17, 2009 | Toshiba 61H70 61" Rear Projection...

1 Answer

Picture off center on Toshiba 46" rear projection HDTV

On some models there is a picture position setting. One for horizontal and one for vertical. Don't mess with convergence, that probably won't help. Older models use knobs; new ones use the menu. Either way, you are looking for position adjustment.

Older sets, for each there should be size, hold, and position. Same for menus but it may have a picture that looks like one square offset on top of another.

Good luck. and if you need more help, please state the model #


Jan 01, 2009 | Toshiba 42H81 42" Rear Projection...

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Red , Green And Blue.

Heres the best way to set a phillips screen controls. Go into the picture controls and set picture or contrast to roughly 75%, then set brightness to 50% and then set the color level completely off. Then adjust the screen with the 3 color controls untill you recieve the best black and white picture as possible. If you are unable to achieve a good black and white picture change the coolant in the green and blue tubes. But if you can get a good black and white picture stop there then turn your color level back up and the picture should be correct. Let me know if you need further assistance.

May 22, 2008 | Projection Televisions

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Still green

go In service convergence mode and try to adjust red and green if you cant then it's convergance amp ic's
if you can adjust them so they align up try doing a touch fous after that,.

Dec 16, 2007 | Toshiba 42H81 42" Rear Projection...

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take the tub off of the back and there will be a red, blue , and green turn dials that adjust th focus and adjust the color apptitude adjust it accordingly

Dec 11, 2007 | Toshiba 42H81 42" Rear Projection...

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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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