Acer AL702 Manuale di servizio - Pagina 13
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Check the data enable of positive polarity
are output on P303 pin 42.
OK
Check the data signal output on P306 and
P303 R, G, B data pin.
OK
Failure point
1) The cable broke between P303 , P304
and LCD module.
2) LCD module failure.
Page 4
NG
1) I300 failure.
2) Printed wire broke between I300 and P303 pin 42.
NG
1) I306 failure.
2) Printed wire broke between I300 and P303 , P304
data line
A L C502
Failure point
Failure point
Trou bl e Sh ooti ng