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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