Question about Mitsubishi WS-55859 55" Rear Projection Television
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Posted on Jan 02, 2017
That would be the convcergence ICs and feed resistors that need replacement. Can you reply to this same post and verify that your model is the R56W36? I will then post the correct ICs and feed resistors for your model as well as a link where you can get replacement ICs and resistors with free instalation instructions with pictures.
Posted on Jul 14, 2008
HI, this is basic convergence failure. the convergence board controls the RGB stream and , if its malfunctioning or, the convergence chip set is damaged, it will distort the entire display and the colors will not be regulated correctly as you are experiencing at this time.
simply replacing the convergence board in this unit will fix your issue.
Posted on May 18, 2009
SOURCE: picture is distorted.. 3d like
Your TV most likely has one of two possible problems.
Problem #1 - Failure in the convergence circuits. ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.
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. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.
TV set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.
Posted on May 22, 2009
Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.
The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs. To get fixed either call in a local TV repair company or goto sites such as Tv Repair Kits to get a repair kit with instructions. Here is there link.
They have put together complete kits for most models that include the parts, step by step photo instructions, repair assistance, etc.
Posted on Jun 14, 2010
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