Acer AL2017, Руководство по обслуживанию

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Acer Service Manual
3.Black screen
U 105 FA IL
B lack screen
C heck pin4 of
C N 101
C heck C C FL -
E nable(pin 85)
of U 105
C heck crystal (pin 96,97)
w aveform of U 105
C heck reset (pin84) of
U 105
C heck pow er supply
for U 105
C heck pow er
supply:pin 1,2 of
C N 101
C heck R 167,Q 106,
R 108,R 110
Inverter Fail
C heck
X 101,C 153,C 154
C heck C 144,R 172
C heck FB 102,FB 103,
FB 105,FB 106
Pow er fail
N G
N G
N G
N G
N G
N G
Y E S
Y E S
Y E S
Y E S
Y E S Y E S
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