6-4
OK
OK
OK
OK
NG
NG
NG
NG
NG
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Is 3.3V voltage provided to pins 19 and 20 of J301 in
MAIN board?
Is 3.3V voltage provided to pin 19
and 20 of J301.
OK
Failure point
Failure point
Check the DE pulse is output on R405?
Check the PVD signal is ouput on R433 ?
J301 cable pulled out or disconnected
1) IC401 failure.
2) Printed wire broke between
IC401 and IC301 pin31.
3) R431;C312 or R304 failure
Failure point
1) IC401 failure.
2) Printed wire broke between
IC401 and IC301 pin30.
3) R405 or C313 failure
Failure point
1) IC401 failure.
2) Printed wire broke between
IC401 and IC301 pin28.
3) R433, C314 failure.
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Failure point
Check Q301and IC301
Is a PCLK being outputted under the condition that
R304 in main BD?