I am working on a Sanyo AVM-2547U Tv , all of the electrolytic caps check out fine.There is no audio when you power it up. when it runs for about 10 min. the audio slowly comes back, but it is garbled. their are two IC's TDA 7132 audio output IC,s I freeze sprayed them but no change. I think it could be the tuner? there is a 2 watt resistor in the supply right beside it maybe causing this? any suggestions?
James
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Home Page: http://www.seanet.com/~jasonrnorth
Hi it turned out that it was the LA7673 IC when you hit it with the spray the audio level drops.same with the signal. I always thought that these IC's either work or don't work. IE no video,color, had a problem with that one a few years back, i guess it is a partial breakdown of the IC.
James
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