hackman
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Aug 8, 2006, 11:40 PM
Post #1 of 2
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? Philips 46PP9302/17 Problem/or Data.
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I just got done helping a friend, his convergence was out on his Philips 46PP9302/17, so using some component cooler, we isolated the problem to those darn STK's, well I purchased two 'NEW' from an electronics warehouse, desoldered the old ones, cleaned all heat sink compound off of the the heat sink, applied new heat sink compound, a thin coat, installed, and soldered them in place.
All was fine, he started to do convergence, all was working fine, and all of sudden it went it to thermal shutdown, I removed power, touched the STK heat sink, and it kinda hot, so I let it cool for about 10 minutes, took some component cooler, and apply a few sprays. Powered it up, he continued to converge, got it all done (while I was spraying short bursts of freeze). It was running fine, I stopped straying freeze, and within 2 minutes it went to shutdown again.
My questions are:
1) I looked through all of my SAMS, I can't seem to find one that deals with specific model, and is there a SAMS that’s close? If not, does anyone have the part number of the schematic of this unit?
2) I checked the resistances of all the surrounding resistors (flameproof) they all check out. Am I missing anything?
3) I have heard of a 'hidden' tech menu on this set, do I need to go in there and send the STK's Zero Balance?
I am at a stand still, I have worked with a lot of circuits, and I am scratching my head (without a schematic)
J. (hackman)
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