My tv when powers on stays on for a split second and when took back cover off i found 5 green leds lit up but 1 green led did not lite up... then red led blinks on the board next to red led says Protect LED,,,SO i am assuming tv is in protect mode... If it is a Fuse how do i identify it and where is it located?...
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With set unplugged remove rear cover and follow the power cord to the fuse--good or bad? This set should also have some led lights there that are green or red---look to see if any are lit or if when plugged in with back removed which come on or go off instantly, the reason I ask is those are each tied to a voltage source and will point to where the problem MAY be.
not a solution but i have a 50gx30b doing something similar, no picture no sound, 3 green leds are lit up on the main board and then one red led lit up also on main board, front panel red led stays on for about 30 -50 seconds and then it all shuts off, I then have to unplug and replug to get the same results.
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.
RED light is protect circuit = do not disable !
Look for C702 near flyback transformer - might be hidden in
glue = check it = if shorted, replace 102K / 2KV with 3KV =
Sony part # 1-161-754-00 and replace E994 pico fuse.....T.
Most likely have a regulator problem. Remove
rear cover, look down on the main chassis, turn
tv on watch the board to have some colored led's
lit, usually a red one and couple of green. If the
red is out, its your regulator, if a green one
other problems off the circuit with green led
are causing the tv not to power up.