Started a week ago. Red LED power light stays on even when set is off. Don't know if set is on or off when input is turned off. Seems to be taking longer to power up, but that may be my imagination. Everything else seems okay.
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The click is a power relay on the main board and if the red light is on I would suggest looking inside to see if it has more than one relay--follow the power cord into the set----some of these sets have one relay but others have up to 3.
They are know for sticking open or shut. A tap on them can free them..A look inside even by a novice may also reveal something burnt or unplugged etc. view of relay bottom side is up.
Hitachi has LED’s, green ‘lights’ and a red light to determine what circuit may be the problem; after removing the back of TV, bottom only, plug TV back in and observe which LED’s come on …..BUT most important which LED’s don’t come on; locate and note number, EG; DP37 and etc.
If your talking about the little red LED on the front of the set don`t concern yourself over it, you have a diode that is a little "leaky" which just means it`s partially on when it`s supposed to be off. The diode is a pain to get at to replace it and it will NOT hurt your set to just leave it like this.
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Make sure that the coolant is not leaking out onto the printed circuit boards. i have had the remote sensor cause this problem before and also I have had bad capacitors in the sweep and the main power supplies. Good Luck