Question about Mitsubishi VS-45605 50" Rear Projection Television

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VS-50800 Mitsubishi Projection TV. a blue haze hangs like a "drape" from the top two corners of the screen, touching at the corners and drooping 10 inches in the middle. there is a blue double image on the screen below the top of the "drape". for example, blue letters form a shadow below the white letters on a channel title. its as if the blue pixels are out of synch with the other colors.

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  • dms3 Jun 17, 2009

    saumyur, thanks. i agree its a synch problem. however, your answer refers to RCA tvs. this is a mitsubishi. have you any info on fixing that brand?



    regards

  • dms3 Jun 17, 2009

    problem diagnosed as a convergence problem. the approach suggested was for a different make. while the approach may be valid, without the specific instructions for my tv i will have to keep looking. however, it was useful in pointing out a possible approach.

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This is a convergence problem.

The convergence is quite fixable, but what itlooks like is that the memory locations that store the convergence data are getting scattered, and you'll need to look into why that happened andfix that FIRST, then fix the convergence.

If this can't be fixed by adjustments,replace both STK392-040 convergence IC's with OEM or better quality = I use Panasonic with great success. They are soldered in and requires at least PCB removal or perhaps entire chassis.

I have some more steps for you to try:

First, take a look at the following web site information. Unfortunately, some RCA sets have manual convergence boards - whichmeans you can do nothing but replace it and adjust the manual controlson the board itself.

But some of the newer ones (Maybe yours) can be accessed through theservice mode. So, give it a try. I have also copied the part of theweb site that gives the entry code to get into the service mode:

---------

http://myweb.accessus.net/~090/how2adj.html#5.4

5.4 GE / RCA / PROSCAN
Read the _ SERVICE MODE WARNING _ before proceeding.

To enter service mode, push and hold the [Menu] button on the set.While holding, push and release the [Power] button, then the [Vol +]button.

You will now have some information on the screen: "P0 V0"

To actually be able to change these values, you must push [Vol +] onthe remote so the information reads V76. Then pushing on the Channel+/- will change the "P" value.

P1 - 3 are error codes. If there is a problem with the set that can beself-diagnosed, the "V" will report the code. These codes are availablein the RCA repair manual.

P4 - 7 control the horizontal size, shift, vertical size and shift.

You may also find a summary leaflet for the service tech clippedsomewhere inside the chassis. The procedures for getting into theservice mode, as well as the service items of interest will be there.

If you're attempting to adjust color or geometry errors, you'll needthe Video Essentials DVD, Laser Disc or some other source of testmaterial.

--------

With luck, you MIGHT be able to adjust it back into better alignments.

If you end up needing service, the price of the convergence board - ifyou can get it from RCA Parts - should not be over $100, but I have notactually checked it lately - and it depends on the model.

The installation is quite time consuming, so it may take a couple of hours for a tech to install and align it.

In my opinion the $400 plus charge is way high. I encourage you to lookelsewhere. Also, the RCA web site has a link to authorized servicecenters; you might try that, also.

Wishing you the best,
saumya.

Posted on Jun 17, 2009

  • Saumya Ranjan Sahu
    Saumya Ranjan Sahu Jun 17, 2009

    well, this solution is applicable to all projection tvs, because in design they all are same,

  • Saumya Ranjan Sahu
    Saumya Ranjan Sahu Jun 17, 2009

    http://www.retrevo.com/samples/Mitsubish...

    here are the manuals to help u better.

    tx.


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I have mitsubishi vs-50800 i was watching a movie and the screen just all of a sudden went blury and the color is all mixed up i went to the convergence menu and it wont allow me to move the colors left or...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

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. In some cases the TV will also not show any video. 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.


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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 get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

May 03, 2011 | Mitsubishi VS-50800 50" Rear Projection...

2 Answers

I have a Mitsubishi 55"


This set has a convergence problem. You should only need to replace the IC. Part is STK393-110. It sits on the middle board behind the large heatsink. Use a heat transfer compound to ensure repair lasts. If you have no experience soldering (or unsoldering) please use a professional for the work. The traces are fragile and I have fixed many mistakes local DIYers have committed. Goodluck.

Jan 20, 2011 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

I do not have a manual for my set


Howdy,

That Model is:
Height: 15 13/32
Width: 42 13/16
Depth: 22 19/32
Weight: 183 lbs.

I hope this information was helpful.

Good Day, Big Irish.

Nov 23, 2009 | Mitsubishi VS-50800 50" Rear Projection...

1 Answer

Can not power on the TV. When press the power bottom, the green light went and then went off in a few seconds.


I think tv is blown it should at leat make sound if projection bulb is broken it will cost alot to fix throught out buy new

Aug 01, 2009 | Mitsubishi VS-50800 50" Rear Projection...

1 Answer

Blue haze in lower left corner on screen


if you have any speakers near the screen the magnet may be causing the problem. i had a similar thing happen & when i moved the speaker the problem went away

Jan 02, 2009 | Televison & Video

1 Answer

Mitsubishi vs-50800


take a look at the gun at theback of TV. if you don't see the beam. it is definitely the HV. I don't know it is worth fixing it. then, there may be something else is going too.

I did it once it is just not worth the time and money.

Sep 02, 2008 | Mitsubishi VS-50705 50" Rear Projection...

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Mitsubishi VS-50800 on/off problem


It sounds like, and I'm only making an educated guess here, but I'm thinking your television is broken and you should probably get a new one if you want to continue watching television.

Oct 21, 2007 | Mitsubishi VS-50800 50" Rear Projection...

1 Answer

Screen has a Green Haze to it........


1. CHECK FOR LEAKY Q6R1 (RED CRT PCB), Q6G1 (GREEN CRT PCB) AND/OR Q6B1 (BLUE CRT PCB). PART # 260P627020

Apr 20, 2007 | Mitsubishi VS-5043 50" Rear Projection...

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