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Originally Posted by luRaichu
Has anyone here seen this issue before? Again, I suspect the Red gun is turned up too high, but I really don't know. This is one of those sets that has a service menu that can be accessed with the remote.
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I don't think the red gun is to blame. Red gun bad is usually too red all the time. This looks like a dance party.
Some component is faulty and causing that to periodically happen. That TV has lots of IC logic in it, so it's beyond my understanding of the signal path. Very tough to know if it's an IC that's on the fritz or there's some tiny SMD transistor that has a leg blown open or what.
I guess if I had to dive into it, I would start checking voltages and waveforms around the boards. You have the clue that it's effecting the red gun, and also that the condition is pulsed or oscillating. You might be able to find some waveforms that are pulsing with that condition, and that might help.
But I would put a time limit on it probably. Especially if it turns out to be an IC, you would be stuck trying to do SMD transplants without knowing if things will get any better. Could get really expensive really quickly, and take too much time.