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Check the 3.3 V power are supplied on I301, pin 4.
Check if the voltage on I301 pin 1 that
NG
is high level DC at 5V.
OK
Failure point
1) The cable broke between P303 and LCD
module.
2) LCD module failure.
f1723 / FP7317 / L1702 / vf17 / FP17
NG
1) Printed wire broke between P301 pin 7, 8 and
OK
and I301.
2) Check power board.
Failure point
I301 Failure
Failure point
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