Question about Mitsubishi WS-55857 55" Rear Projection Television

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Mitsubishi WS 55857

I just bought this tv used, it was working fine, i moved it to my home and now the colors are all wrong i have no red, i did what the owners manual said but it didn't help. I don't know what to do next. Thanks for any advise you can give me. Judy

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Hello Phyko14:

The convergence needs to be realigned, that is something that a repair center will need to do.

Posted on Aug 17, 2008


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We can set the convergences great but after about 10 to 15 minutes ithe reds lines start moving a little again will not stay in position. It's a widescreen Mitsubishi rear projection tv ws-55857.

The problem - you're setting the convergence settings, but you're not saving them, you're
simply exiting the menu screen. Be sure to save your convergence setting for each
of the three colors. It sounds like you're setting RED last, and not saving its convergence setting,
whereas the GREEN & BLUE are holding their convergence settings, since you're saving them
correctly before proceeding on to RED....

Mar 15, 2011 | Mitsubishi WS-55857 55" Rear Projection...

1 Answer

Mitsubishi WS-55857 turn on/auto turn off problem

After it shuts off, you need to get a code from the tv by pressing the menu and device buttons together for 5 sec. A code will flash at you made up of 2 digits. Example. 2 flashes a pause and 2 flashes points to a convergence failure. If this is not your code post yours and I will help you.

Jul 06, 2010 | Mitsubishi WS-55857 55" Rear Projection...

1 Answer

Mitsubishi WS-55857 with a flickering blue edge.

The vertical IC needs to be replaced. You can get new Vertical output ICs at and they will also help explain where its located.

Nov 27, 2009 | Mitsubishi WT-46805 46" Rear Projection...

2 Answers

After my tv warms up it goes to a red and green picture. like a shadowing of each other. Mitshubishi ws-55857 rear projection

you have a convergence problem
there are a set of ic,s that cause this trouble
if you call a servicer and depending on your area
cost should be 300 to 375.00
My co is in Tenn aea so basing that on our rates and they will vary in other areas of course

Oct 22, 2009 | Mitsubishi WS-55857 55" Rear Projection...

2 Answers

Picture is warped (three colors diverge at edges

WS-55857 uses two STK-392-570 convergence IC's----you may have bad solder connections on them but what is more likely(I have seen this in sets that Mitsubishi made that use this chip) is that some of the pins are broken loose inside one or both of the chips.

Considering the labor to get the board out to resolder it, might as well just replace BOTH of the chips------Usually this repair can be done right in your home and takes about an hour.

If you are able to do it yourself you can buy both chips for less than 15 dollars on Ebay; if you need help I have complete step by step instructions for this repair that tells what you need and how to do the repair---if interested I can email them to you.

If you are not able to do the repair most shops charge 300-400 for this kind of repair; look in your area and if they say "needs to go to shop" keep looking; any good tech can do this repair right in your home.

Now is the slow time of year for TV repair shops so look around--I do this kind of repair here for 200-250 depending on the set --right in someones home! I have done hundreds of these sets.

If you need any help or would like the instructions reply to this comment here.

I do this for free here so if it helped you take a minute and give me a vote here.


Sep 02, 2009 | Mitsubishi WS-55857 55" Rear Projection...

1 Answer

Mitsubishi WS-55857 55 in issue

Hello Rodfamy:

You will need to look in the small signal board section of your service manual.

Aug 10, 2008 | Mitsubishi WS-55857 55" Rear Projection...

1 Answer

Mitsubishi WS-65809 turns off right away

check the collector drop on Q29a002. If it is less than 16 nano amps, repl ic u12 in conver circuit. stk392-570 and pico fuses f04 and f05 24v circ

Jul 28, 2008 | Mitsubishi WS-55857 55" Rear Projection...

3 Answers

Mitsubishi WS-55857 won't turn on

Thank you for posting your concern details however i would be needing few more details from your side if necessary and allow me few mins to come up with the resolution.

May 19, 2008 | Mitsubishi WS-55857 55" Rear Projection...

3 Answers

Mitsubishi WS-55807 TV won't turn on

It s a Power supply problem.If you are not familiar with electronic repairs take it to an authorized repair shop.
To get a service manual see link
Download Mitsubishi WS-55807, WS-65807, WT-46807, WS-55857, WS-65857, WS-55907, WS-65907, WS-73907 Service Manuallockmanualsdnw_en.gif
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Feb 21, 2008 | Mitsubishi WS-55807 TV

1 Answer

Red / Green issue when connecting Mits DVD to Mitsubishi TV

if you just moved it i would look for loose connection arouind the convergance amp ics
do not play the tv....


Dec 05, 2007 | Mitsubishi WS-73905 73" Rear Projection...

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