Question about Mitsubishi WS48511 48" Rear Projection Television

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Mitsubishi ws48511 convergence problem

I have a ws48511 with convergence problem. I cannot adjust blue convergence, I can adjust red and green but not blue which is causing blue ghosting on my screen. I replace fuses f9a04 and f9a05 which were blown. I read somewhere this is caused by something on the convergence output circuit?

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  • ACE07022 Apr 15, 2009

    I have a problem like this one however, my blue is out of sink with the other colors. I can not adjust the blue when I attempt to reset/adjust the convergence. It dips down to the center of the screen. Do you know of a fix for this?

    Ace

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  • Mitsubishi Master
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Your model uses one convergence IC its a STK392-110 you need to replace that IC. You can get a replacement at the following link with free instalation instructions with pictures so you can do the repaair yourself. Here's the link.
http://servicemanuals.vstore.ca/

Posted on Jun 26, 2008

  • 46hand Apr 12, 2011

    The WS-48511 DOES NOT use a STK392-110. It uses a STK393-110. Available at the same, above site.
    But before you go and spend over $30 to fix something it, check to see if it is simply the convergence fuses. This can be accomplished by pulling the chassis out of the back (which I won't get into here) and looking at the convergence fuses. They are even labeled at the base. In my case, the blue convergence was out, and lo and behold, R8C21 and R8C22, which are the blown fuses, are labeled "BV" at the base of the fuses, next to the designator. The other five pairs are labeled RV, GV, BH, RH and GH. They are all 3W resistors, labeled 3.9 ohms, ringing in at between 6.9 and 7.4 ohms (which I don't really get... Also, the pico fuses are NOT automatically blown, so before you go to the trouble of replacing them, ring them out. If there is continuity, they are just fine.

  • 46hand Apr 12, 2011

    Sorry, I meant to say "convergence resistors" and "resistors" in every case that I said "fuses" except after the word "pico".

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1 Answer

The top half of the screen is scrambling with wavy lines. Can this problem be fixed?


If you go into the customer menu and select convergence--instructions will appear on screen--select advanced and a grid of lines will appear.

If red or blue are skewed and will not adjust you have a convergence problem-If model ws48511 I have complete do it yourself instructions for this kind of fix.

YOU can post a photo here of what the picture looks like--I will attach one of a typical convergence problem--no two look the same but you will know if this is the problem you have.

SD TECH

0abfd22.jpg

Feb 17, 2010 | Mitsubishi WS48511 48" Rear Projection...

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Red ghost in my ws48517


U can solders wright?Buy a convergence kit at Tv Repair World.com.To repair it ur self.Try U Tube.com for some sample for replacing some DLP tv IC convergence problems.

Feb 15, 2010 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

I have a ws48511 that has a red cast to the


I think you are describing a convergence failure. Particularly if what you mean there is a red image/ghost around the video in the picture. If so, the Convergence IC, (STK393-110) will most likely need to be replaced. It is located on the center board, mounted to the large heat sink in the middle of the board. Be careful when removing the board. There are many screws securing the board to the chassis. Particularly on the back side of the heat sink.
I hope this helps,
Skyassoc

Feb 07, 2010 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Mitsubishi Convergence issue


If the screen is out of focus you probably need to adjust the focus on the focus block it is usually located behind the front grill, there are 6 adjustment screws on this block, leave the screen controls along just adjust the red, green, and blue focus screws. When converging a set everything is converged to the green, the blue and red are suppose to come to the green.

Sep 02, 2009 | Mitsubishi WS-65311 65" Rear Projection...

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I had a convergence problem on my Mitsubishi WS-65711 where the red and blue was bending outward from center giving a 3D effect. I replaced the STK pack and the red and blue look good now, but now the...


green is base line center and some times is not adjustable
.Did you replace both convergance chips?
also there are 6 , 2.2 ohm res that get out of
tolarance. check them first

Jun 30, 2009 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Mitsubishi ws48511 ghosting problem


You need to have the convergence output IC's replaced. These are large amplifiers which control where the red, green and blue beams land on the picture. When they fail you will get colored ghosts. This is a very common problem for any projection television. Any reputable tv repair shop can do the repair in your home and the average cost of the repair is between $225 and $325.

Jun 01, 2009 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Convergence is off - Blue and Red are fine Green will not line up


On most units, the Green is constant and the Red and Blue are adjustable. Here are 2 links on how to manually adjust the convergence. There is a menu option using the remote control. Once there, you will find step by step procedure on how to adjust the convergence. Hope this helps answer your question. All the best!
Greg

http://www.fixyourowntv.com/menumitsubishi.php
http://www.ehow.com/how_2034880_perform-convergence--tv.html

May 23, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Red shadow


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

Mar 22, 2009 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Color convergence problem


If you follow the instructions on the other thread, you should be able to resolve the problem. Try the simple stuff first. Resolder the pins of the convergence ICs and see if that alone resolves the problem. Sometimes that is all it takes.

Keep us posted.
Dan

Jan 30, 2009 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Blue color cannot be adjusted


there are two ics trhat control the three colors alignments. Its always recomended to replace both Convergence ICs at the same time when doing the repair as they both share the green color between the two ICs.

Sep 03, 2008 | Mitsubishi WS48511 48" Rear Projection...

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