Acer P244W

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4. Check Scalar
Are all the power and
ground pins at the correct
voltage level?
Are the correct RGB and
Hsync signal fed to
Scalar ?
Scalar failed
Scalar failed Scalar failed
Scalar failed
to output data
to output datato output data
to output data
YES
YESYES
YES
YES
YESYES
YES
NO
NONO
NO
NO
NONO
NO
Capacitors of Crystal
Capacitors of Crystal Capacitors of Crystal
Capacitors of Crystal
have damaged
have damagedhave damaged
have damaged
Check the remaining
Check the remaining Check the remaining
Check the remaining
circuits
circuitscircuits
circuits
Measure the signal pairs
on LVDS data output and
clock from Scalar
Is the correct Sinusoidal
wave appeared on Crystal
YES
YESYES
YES
Are the pixel output
correct?
Are the signals presented
on DSub connector?
Scalar failed
Scalar failedScalar failed
Scalar failed
Power or the ground pins
Power or the ground pins Power or the ground pins
Power or the ground pins
has bad contacts
has bad contactshas bad contacts
has bad contacts
DSUB Connector
DSUB Connector DSUB Connector
DSUB Connector
or PC failure
or PC failureor PC failure
or PC failure
Bad wiring between
Bad wiring between Bad wiring between
Bad wiring between
DSUB and Scalar
DSUB and ScalarDSUB and Scalar
DSUB and Scalar
NO
NONO
NO
NO
NONO
NO
YES
YESYES
YES
YES
YESYES
YES
NO
NONO
NO