Question about Toshiba 50A61 50" Rear Projection Television

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Color problem with Toshiba

My picture on my Toshiba rear projection tv is off. The images project a blue outline. I aligned the screen but on the alignment line in the right the blue one is bowed and wont align. Is this a bulb problem or has my tv seen its last days.

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  • tradewins Jan 17, 2008

    I have similar problem Blue colors are waved accross the screen. At first the tv wold not turn on unles wee unplugged it forst. Then after about 3-4 weeks now the color is mixed. I will say also the color is wavey at the bottom of screen mainly...



    Will the ic mentioned here fix this problem.

    Can anyone tell where I can get a service manual. I can't find any on net search...

    Where is the convergence board and what would it look like?



    I'm not afraid to tackle any problems my self and can solder anything as long as I have instructions what to solder...



    Thanks for any help or suggestions.

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1 Answer

Sounds like a problem with convergence, poss just requires new STK 392-110 ICs , may need a couple of resistors that go due to faulty ICs

Posted on Aug 31, 2007

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Posted on Jan 02, 2017

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The red lens on my projection screen dose not seem to line up right the picture is fuzzy and it will not moveback in alignment with the remote


Tv board call the Hyper board also known as a tv convergence board it is dead.Tv have any R,G,B colors lines mis alignments,have colors shadows pictures or 3D pictures look alike?Yes,than the tv convergence must have it parts to be replaced like 2 STK convergence ICS and some or all of it resistors too.To fixed the the Hyper board also known as a convergence board will fixed tv picture convergenece problems.Tvs shops will cost u like $300-350 for parts and labors.

Aug 22, 2011 | Toshiba 57H81 57" Rear Projection...

2 Answers

Color problem with Toshiba


tv is on it's 'hospice' end of life routine..unless you want to gut it completely, and replace all the electronics..

Apr 19, 2008 | Televison & Video

1 Answer

I have a toshiba tp50h50 rear projection tv and their is a blue shadow behind the words and makes the words a little blurry


Sounds like you need to do a color convergence. If you still have the owner's manual, it will give great detail on how to do this. The convergence menu is accessed from the video menu on the tv.
The tv has three color picture tubes, red, blue and green. The convergence alignment adjust each tube so that color from each tube overlaps each over to create a white image on the screen. Most tv's only allow you to adjust the blue and red colors.
Convergence should be performed each time the tv is moved and at least once annually.

May 16, 2011 | Televison & Video

1 Answer

Green line on left side of an image and a red line on right. Such as around a face. Colors just don't line up and picture is very fuzzy. Had another old rear projection and it had a way to align it. Can...


Your other model was more than likely a CRT projector where you coulod manually align the Red/Green/Blue guns. The one you have now is more than likely an LCD projector which can't be readily aligned. Sounds like the panel is failing.

Mar 13, 2011 | Zenith R57W46 57" Rear Projection...

3 Answers

I believe the blue lamp in my 57H81 is going bad.


You need to replace convergence out chips in your Toshiba 57H81 tv by qualified tech because 3-D look picture in rear projection tv shows some thing wrong with convergence output chips.
Your tv model number shows it is rear projection tv that use 3 tubes to make color picture on front screen where as dlp tv use one lamp as back light source to present picture at front screen that is generated in light engine.

Mar 25, 2010 | Toshiba 57H81 57" Rear Projection...

1 Answer

Wavy picture with blue and purple color.


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


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,Akai,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...

*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 http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 09, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

How do I know I need a new projection lamp? My tv


This set does not have a lamp. It has 3 crt tubes that converge to create a color picture. The convergance is off a little causeing this affect. Go into the menu and look for convergence or magic focus. You can download the owners manual from Toshiba website to do this. You will need the remote that came with the set.

Nov 30, 2009 | Toshiba 50H82 50" Rear Projection...

2 Answers

COLOR PROBLEM


you have a miss aligned convergence. try to aligned it first.

Aug 06, 2009 | Philips 55PP9363 55" Rear Projection...

1 Answer

I have a bowed picture on the top and bottom of the screen of my philips rear projection tv


Projection sets have two very common problems outlined below.

The first common problem is convergence

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. The TV can also shut down when the convergence starts to fail.

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,Akai,Pioneer, Hitachi,Mitsubishi,Zenith, RCA and others.


You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.

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

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*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.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

Jul 19, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba Rear Projection Tv 40WH08B


If the convergence on one or more color does not align using the convergence setup procedure, that means that one or more convergence ICs must be replaced, that is the reason why you get bad picture.

That means that the convergence ICs are bad and must be replaced, the job is about $200/$300.

Here there is an example of the repair needed: Fixing Convergence problems in RPTV's

Mar 10, 2009 | Toshiba 57H81 57" Rear Projection...

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