I replaced the power supply board but it did not fix the TV.When it warms up it loses the picture and the blue screen and no signal shows.It does this until the TV has been on awhile then the picture want come back on just the blue screen and no signal.Any help for this problem will be nice.
I have three of these TVs in the shop. They are less than a year old. The signal board is good, the T-con board is good, and the power supply is good. The panel (once called picture tube) is bad. Much too costly for repair. Thanks for asking me.
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In other words,when the TV gets warm the problem happens.
check on your signal board look for a big electrolytic capacitor or bunch of caps that are bulging or have popped, a smell of fish oil could be present as the electrolytic usualy contains fish oil
but be carefull caps keep charge long after they have been removed
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