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Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Before I offer an opinion on your question, please tell me more about the board where two LEDs are still lit.
That could be a defective power supply board.
It could also mean that some other component is shorted out, in the TV.
Do you have a service manual, and a voltmeter, and the ability to make use of both? though the problem may seem obviously a power supply problem, it could be either of the two possible things I have mentioned. A service manual, and a few measurements, would help a lot in determining for real whether this part, or some other part, is what is needed to fix the problem.
That *sounds* quite normal, so the power supply might, as I said, not be at fault.
I suggest we get you a source for a service manual for this TV's model line, so that we can check on what you observe and make sure of details - e.g. whether those really are normal DC voltages, all, measured from the power supply.
Would you be interested in that? a service manual I mean?
I regret that I cannot find a source of service information for this Westinghouse TV.
Is it a plasma TV, or an LED TV, or another type? please let me know.
Also, what are the labels on the m-bd next to the two lights that are On, on that m-bd ?
What color are those two LEDs, leo1 and leo2 ?
I regret to have to say that I honestly have no idea how to advise you at this point.
Except, that if there is any dust in the TV, you should re-seat (after cleaning/dusting) all connectors in the TV, with power Off and unplugged first for 30 minutes for safety.