Replace IC Convergance chip in Panasonic PT-56HX41PF
I'm trying to replace the convergence chips in my Panasonic PT-56HX41PF, I need to take the board itself out to sauder the chips into place. There is a four white connector that is holding the two boards together, I do not want to force them out, they may break. Has anyone done this, if so can you please help?
Re: Replace IC Convergance chip in Panasonic PT-56HX41PF
Enter the tip of a pointed knife between the left side edges of the connector (circled in black in the attached pic) and gently tilt the knife away from the connector. Do the same on the right side. The connector should pop up.
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The three blinks indicates a convergence IC fault. The convergence ICs must be replaced with the manufacturer replacement part. Use only the original replacement part. Your set uses STK392-110 convergence ICs. These ICs are mounted on a large heat sink. Yes, you can replace it yourself and save few hundred bucks. But you must be knowledgeable enough on how to solder, resolder and use a multimeter. You will need:
Heat sink grease or thermal compound
Small side cutter
Feel free to inform me if you decide to replace the ICs yourself
I would chack the solder connections at the convergence ICs first. Since the set "recovers" on its own, it suggests a connection issue rather than a defective component. Also, if the ICs were installed without sufficient heat sink compound, this could happen as well. Look at low valued resistors in the area of the ICs for signs of overheating as well.
Yes you can get replacement IC STK392-110 convergence ICs at the following link and they provide free instalation instructions with pictures. The Ics are located on the board on the left side attached to a large heatsink. You will need to replace both ICs heres the link. http://servicemanuals.vstore.ca/
Thats the regulator chip for the convergence circuits thats the one youre most likely needing, as your chassis doesnt have convergence ICs. You can get that IC at the following link and they will provide free installation instructions and free on line tech support just in case you need assistance. Here is the link. http://servicemanuals.vstore.ca/
they should be stk392-110. if you look in your set they are located on the left side of the chassis on the huge heatsink. you can get the numbers off the ics its big enough to see. you can get them at the following link for about 9.00 http://www.yahoo.com/
Convergence amp ic bad http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html http://www.hdtvoice.com/voice/showthread.php?t=28929
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 ----/