Question about Panasonic PT-47WX49 47" Rear Projection Television
Normally, the main cause of this problem is the solder connection under the convergence IC's.
You would see rings around the legs that have bad solder joints.
My shop would replace both of the IC's.
I don't have a schematic in front of me, but, I'm pretty sure the IC's are STK392-110. We use the STK392-150 in place of them since they are a heartier IC.
When replacing these IC's, remember to use semiconductor compound on the back side of the IC when placing the parts against the heat sink.
Any questions, respond to this post and I will reply.
Posted on Jan 27, 2008
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