Question about Panasonic TH-42PD50U 42 in. Plasma EDTV
Hi i have a sony plasma pfm42v1,after watching it for about 30 - 35mins.the light colours like white starts to flicker orange(like pulsing)orange and it gets worse as time goes by,can this be solved
HOW MANY PROCESSOR BOARDS ARE IN THE SET I CHANGED TWO ALREADY THE PROBLEM STIL EXITS,ANY OTHER SUGGESTION OTHER THE SONY WHERE THIS BOARD CAN BE HAD?
Posted on Aug 20, 2008
There are some parts on one of the processor boards that have become thermo sensitive with age and use.
An experienced service tech should be able to find the thermo sensitive part by using the technic of cooling the suspect areas with liquid air and heating them back up with a heat gun to provoke the fault. With this type of process it should be possible to zero in on the parts without going in to very complicated analysis.
If the parts become permanently failed, then the only way to fix the set would be by board swapping, as how these sets are normaly serviced.
If the failed parts are proprietary type parts that cannot be genericaly bought, then they will have to be ordered from Sony only. Normaly, Sony only sells the complete boards for these TV sets. They do not fully support component level service for many reasons.
Considering the age of your set, it is very possible that parts for your set will no longer be available from Sony. I found that after about 3 to 5 years, most of the parts were no longer available for most of these models of sets.
Posted on Apr 30, 2008
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