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Troubleshooting for No Power On (Power LED is off = No blinking) -1
< F4 series >
Disconnect A10 connecter.
Power on check few times.
(because we can't check
the power LED)
NG
Check if the output of
STB5V.
NG
Disconnect A02 connecter.
Short check of STB5V line
in A board.
Shorted
Replace A board
Replace K board
Power on
Replace A board
OK
Replace P board
No
Shorted
No
Picture
LED off
69
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