Television screen bows downward. Kind of looks like its in 3d mode but it bends down like an upside down U. Also gets staticky, squiggly lines of diff color appear for a few seconds here and there. The bowing goes on and off but has gone on longer, as time has passed. Mitsubishi Projection HD 1080 series about 10 years old. Its between a 50 and 55 inch.

Or like:









Or like:

Re-soldering will not help. I have seen dozens of these sets with this kind of problem--this model uses two of the STK-392-570 Convergence chips.

What happens a lot with this part is it becomes flaky and convergence may jump in or out---seen over 50 sets like yours and replacing both chips cured the problem in ALL of them.

Also considering the chips are about 14 dollars for a pair (set uses two) and the trouble to get at them--it is better to just replace them and be done with it. (A GOOD SELLER IS ON EBAY-WHERE I BUY MINE.)

I do have START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR in this model--tell you everything you will need and how to do it. The instructions are a little too long to post here except in several parts one at a time.

I have seen several of these sets that use this part where when they are unsoldered the pins just fall out--broken loose inside the chip.

Let me know if you want the instructions and how you want me to get them to you.


SD TECH

Re-soldering will not help. I have seen dozens of these sets with this kind of problem--this model uses two of the STK-392-570 Convergence chips.

What happens a lot with this part is it becomes flaky and convergence may jump in or out---seen over 50 sets like yours and replacing both chips cured the problem in ALL of them.

Also considering the chips are about 14 dollars for a pair (set uses two) and the trouble to get at them--it is better to just replace them and be done with it. (A GOOD SELLER IS ON EBAY-WHERE I BUY MINE.)

I do have START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR in this model--tell you everything you will need and how to do it. The instructions are a little too long to post here except in several parts one at a time.

I have seen several of these sets that use this part where when they are unsoldered the pins just fall out--broken loose inside the chip.

Let me know if you want the instructions and how you want me to get them to you.


SD TECH