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Abnormal Auto Adjustment - NEC -FA150ATUA Service Manual

15-inch lcd monitor
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6. Abnormal auto adjustment

OK
OK
OK
OK
OK
Check the input of 3.3Vp-p pulse from I305 pin 88, 89, 93, 94, 95.
Failure point
NG
1) Printed wire broke between I305 pin 88 and I306 pin 34.
2) Printed wire broke between I305 pin 89 and I306 pin 37.
3) Printed wire broke between I305 pin 93 and I306 pin 33.
4) Printed wire broke between I305 pin 94 and I306 pin 35.
5) Printed wire broke between I305 pin 95 and I306 pin 36.
Is the ADC_CLK_OUT from I305 pin 129
Failure point
NG
1) I303 failure
2) Printed wire broken between I303 pin 67 to I305 pin 129.
Is the R.G.B. data output from I303 to I305
Failure point
NG
1) I303 failure
2) Printed wire or components broken between I303 and I305.
Is the DCLKout from I305 pin 53 to P301 pin 39
Failure point
NG
1) I305 failure
2) Printed wire or components broken between I305 pin 53 to
P301 pin 39
Is the R.G.B. ODD/EVEN data output from I305 to P301, P303
Failure point
NG
1) I305 failure
2) Printed wire or components broken between I305 to
P301, P303
Proceed "Checking the resolution change IC movement" section
NEC-FA150ATUA
Trouble Shooting

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