NEC LCD1501-BK Service Manual page 51

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Check the PHD signal is ouput on R432?
NG
OK
Check the data signal output on IC301 R,
G, B data pin?.
NG
OK
Failure point
IC301 failure
6-5
Failure point
1) IC401 failure.
2) Printed wire broke between
U401 and IC301 PIN27.
3) R432 or C315 failure.
Failure point
1) IC401 failure.
2) Printed wire broke between
IC401, IC301 line.