Simple.allow someone to dismantle everything for you( a specialist or a pc technician will do)check the cpu, fans and heatsink,clean them and apply thermal compound.assemble all the parts together after cleaning then reboot.problem solved!if it doesnt work,check the laptop battery,power supply as well as the hard drive,that might be the bottleneck of that problem.
Something wrong with the CPU
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,
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?
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