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wd-73640 solid red light

Solution
There is a possibility for a board problem and need replacement for capacitors. Check it first with a local repairman to further assess and ask them what needs to be replaced. But, if the price of repair is more than the price of new TV, just buy a new TV.
There is a possibility for a board problem and need replacement for capacitors. Check it first with a local repairman to further assess and ask them what needs to be replaced. But, if the price of repair is more than the price of new TV, just buy a new TV.
 
Solution