This 6 year old TV that is 47 or 52" Panasonic started shutting down down every day several times. Once it shuts down the LED blinks three times and with a pause in between and keeps repeating blinking three times.
Once I unplug the cable and plug it back in, the TV can be switched on. However it sometimes stays stable for 2 min or 2 hrs unpredictably. Sometimes, i tried 3-4-5 times within minutes and is frustrating to keep doing it.
What needs to be changed? and what costs are normally incurred for this kind of problem?
Physically disconnect the SU board and the SD board. (See precaution # 5)
Plug in the TV and turn it on.
Does the TV shut down and the power LED
blink 7 times?
Yes
No
Replace the Panel and the SU board.
(See precaution #3)
Reconnect the SD board only.
(See precaution # 5)
Plug in the TV and turn it on.
Yes
No
With the SU board and the SD board still disconnected, remove connectors SC2 and SC20 from the SC board (See precaution # 6)
Plug in the TV and turn it on.
Disconnect the SD board and reconnect the SU board. (See precaution # 5)
Plug in the TV and turn it on.
Yes
No
Replace the Panel, SD, and SU board.
(See precaution #3)
Replace the Panel and the SD board.
(See precaution #3)
Replace the SC board.
(See precaution #3)
No
Replace the D board.
(See precaution #3)
Does the TV shut down and the power LED
blink 7 times?
Does the TV shut down and the power LED
blink 7 times?
Does the TV shut down and the power LED
blink 7
There is a sequence that you have to check to figure out which board is bad,
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Usually answered in minutes!
tv WILL COME FOR ABOUT 10 SECONDS AND WILL CUT OFF. HAVE TO UNPLUG IT AND WAIT A FEW MINUTES AND PLUG IT BACK UP AND DOES SAME THING AGAin.
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