Im a DIY working on a 42 philips plasma ... it had the 7 blinking red light...i removed the y-sustain main and the 2 buffers...i have tested the 2 buffers and they are both bad...so how can i test the y-sustain main??? is there a way??? the back of the y-sus main looks discolored a bit but not too sure...i tested the fuse on the y-main but it seems ok...any help would be great thanks PS...the tv model is 42PF7220A/37 the y-sustain main model is LJ92-01200A
can i test the y-sustain main
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Re: can i test the y-sustain main
The main fault on these boards are the FETs under the two heatsinks nearest the buffer connectors. When a buffer shorts it usually take a FET or two with it. The best way to test them is to remove the heatsinks and test for shorts. Most of the time these are the only problems on these boards but other components can go bad and are harder to find. -
Re: can i test the y-sustain main
Search for my recent posts on Coppell TV Repair. One of them includes links to discussions on these boards, and it describes how to identify shorted buffers and the shorted transistor.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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