Question about Mitsubishi WS-55511 55" Rear Projection Television
I tried to adjust convergence adjustment following instructions in the manual, but the red lamp does not change. Even going to the advanced adjustment, on the grid, red dips drastically in the upper left corner and slowly converges in the upper right.
Appreciate any help.
WS-55511 uses a single convergence IC chip---a STK-393-110.
IF convergence is off and will not adjust it needs along with any of the 3.9 ohm resistors that protect it to be replaced.
What happens in these and most projection sets is the chip is mounted on a large metal heat sink with fins to keep it cool----a white grease is applied to the back of the chip to quickly transfer heat--after some years the grease dries out from the heat and the chip fails.
Considering you can buy the IC on Ebay for about 14 dollars plus shipping (I can tell you the best seller there to look for) if you or someone you know can do the repair you can save the set and a LOT of money.
Most shops are going to get 300 or more for this repair.
I ALSO HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR IN THIS TYPE OF MITSUBISHI!
IF you need the instructions etc, let me know and I will post them here--I am here to help people.
I have repaired HUNDREDS of these sets with this kind of trouble.
if this information has helped you, rate this solution as I do this here for FREE.
Posted on Nov 16, 2009
Testimonial: "Very good advice. Wish I had the time to wait for ebay auction and delivery. But thank - now I know what repair is needed. Thank you! "
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Posted on Jan 02, 2017
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