Trouble Shooting
Page 3
B17AAU / B17ANU / B17AAY
Continue
Check if the voltage on I323 pin 3 that
is high level DC at 5V.
Check the 3.3 V power are supplied on I323, pin 2.
O K
N G
O K
N G
Failure point
1) Printed wire broke between P310 pin 7, 8 and
and I323.
2) Check power board.
Failure point
I323 Failure
Is a dot clock being outputted under the
condition that a LCD module is
connected to L322 pin 2?
O K
N G
Failure point
1) I315 failure
2) Printed wire broke between I315 and L322 pin 2.
Check the H-sync pulse of negative polarity
is output on RN314 pin 8 at TTL level.
O K
N G
Failure point
1) I315 failure
2) Printed wire broke between I315 and RN314 pin 8.
Check the V-sync of negative polarity
are output on RN314 pin 7.
O K
N G
Next Page
Failure point
1) I315 failure
2) Printed wire broke between I315 and RN314 pin 7.
Summary of Contents for B17AAU
Page 1: ...17 inch LCD Monitor B17AAU B17ANU B17AAY Service Manual...
Page 30: ......