Question about RCA P56923BL 56" Rear Projection Television

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Mistubishi Convergence/video display problem

My Mitsubishi has a convergence problem as well as video display issue. It powers up fine and shows inputs and channel display on screen. It also has sound. But not getting any diplay video from either inputs and anntena signal. Blue screen shows when you select other inputs such as DVD, DTV etc. Already replaced STK convergence ICS. I as other member was able to get tv signal and raster by removing GENE-CONVERG board. I even swapped GENE CONVERG board from no success. Also convergence is bowed at top and right. When attempting to select Advance Convergence to show ADvance screen Adjustment, It does not come on. When Attempting to adjust convergence it does not move on either ere or blue convergence. . Any assistance is greately appreciated. convergence is bowed at top and right .when attemting to reset convergence on screen menu it was gone on list menu.

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The most likely cause is shorted convergence chips and possibly a few pico fuses.

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 a convergenece repair kit with instructions from the links 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

You can see some more examples and find a fix hereMistubishi Convergence/video display problem - bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Apr 18, 2010

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SOURCE: Mistubishi Convergence/video display problem

also check resistor values on the chips and resolder the tuner as this can cause problems as they heat up , then replace any electrolitic capacitors in the video circuts selector ic
i will be back to see what you get

electech

Posted on Oct 26, 2008

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1 Answer

Tv powers on, has sound but no picture. All three lights are working & will show the input display but distorted. I would like to do the repair myself but am not sure if this is a convergence issue or...


Even if a convergence problem exists you should still have a picture, a bad one but a picture----call the menu up with the Mitsubishi remote and select convergence and then advanced---a grid of lines will appear in green---got dramatic red and blue showing and you have a convergence issue.


Do that first----presuming no hookup is ok (try a dvd player) the set does have the OPTION menu(can tell you how to get there) that is based on a 4 digit number code--may have that for this model or not).

It will not correct any convergence problems but will do a hard reset of the set back to factory original.

Let me know what you find---it sounds like 2 problems exist.

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Sounds like a convergence problem which is common in these sets

This model uses two of the stk394-250 convergence output devices or chips.

Both would have to be replaced.

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go to the Mitsubishi service center to solve your problem

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No,need to diagnose.It a 100% convergence problems.Convergence problems very easy diagnose.The picture look like 3D,colors lines don't lines up.Fuzzy,out of focus.Convergence controls don't work to lines up any colors cross.The tech is cheating u if he said cost $125 to diagnose.If u know how to solders u could fix this convergence problems about $100.U can buy a convergence kit at Websites Tv repair World.com,Tvrepairkits.com.The shop everythings fix parts and labors only $300.

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This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

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It is fixable, It is the convergence circuit causing the problem. Unless you are familiar with electronics and with Projection TVs I would not attempt to fix it. Plus the way the convergence board is mounted with hidden screws makes it even more difficult. I would estimate cost would be around 300.00 to 350.00. The set is worth putting the money into it. I recommend a professional to do it.
Hope this helps,
Skyassoc

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Convergence issue


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...

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

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1 Answer

Mistubishi Convergence/video display problem


also check resistor values on the chips and resolder the tuner as this can cause problems as they heat up , then replace any electrolitic capacitors in the video circuts selector ic
i will be back to see what you get

electech

Oct 26, 2008 | Mitsubishi WS-55809 55" Rear Projection...

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