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Re: convergence problem too on kdpws550
I don't have a listing for your specific model, but the ICs should be large, black and attached to a heatsink. They will be marked STKxxx. Open up the back and look for a large heatsink. Post the marking on the ICs and I'll confirm the parts.
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Always replace both once your going to the trouble each IC is usually less than $30.
This link will help show you what's involved. convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks! See link for more detail http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html
Hi, This problem is related to the convergence, but it requires replacement of IC STK from one of them who control convergence, check both and replace faulty IC STK from new one and your tv work fine again. You can buy the convergence IC's from the link click here. Thanks for using fixya.
well, at this time using the remote to adjust is not doing any good anymore. should replace the IC and it's not that expensive. go to Partstore.com and they should have a convergence board for about $76 or you could buy the parts and put it together by soldering.
I'm in the process of trying to replace both convergence IC's in my JVC also. I was able to buy both IC's (they look like black semi-rectangular components with 20 pins sticking out...like a computer chip only much bigger) at a TV repair shop for about $15 each. They were clearly labed STK392-110 (but could be 150 or 180 if you wanted to upgrade).
The convergence IC is an STK392-110. This is a large black IC attached to a heatsink. First try resoldering the pins on the IC. If that fails to resolve yuor problem. replace the IC. Be sure to use plenty of heatsink compound on the back of the new IC.
There are two ic that should be replaced in convergence. It is like doing your breaks on your car you should do both sides. the parts are only 30. dollars.there are differant kinds for each model
stk 392-150 or stk392-040 so on the part you need will be on the convergence .make sure you check the resistor around convergence ics if they are burned you have to replace them to.
a tv shop charges around 300.00 to fix this repair
Sorry no pic, but if you look from back of set on deflection board(board with HV transfromer)big part with about 4 wires coming out going to your picture tubes. Looking close to leftside of board the last IC with heatsink shield standing up has a small 7 pin ic if looking on it you should see TDA8177 or something to that affect. This is the verticle IC. Since you have found the IC's (convergence) then the only thing left is to look for open fuses like 1300, 2004, 1900 etc and see if open. Concerning cost if you buy from www.bluestaronline.com these part are inexpensive so it wouldn't hurt to buy all. Rule of thumb, if set has color problem then Convergence IC, if no problem just went out one day while playing fine then Vertical, then the alternative if no sound the audio area, which is not common for this set. Hope this helps!
if you can remove the rear panel assy. look for the convergence ic's they start with stk--- and you got the part number you need a source panasonic is 814 source and the number on the ic's stk 390 ----/