42
2. No picture (LED is orange)
No picture
OK
OK
NG
NG
Measure U701 PIN2=1.8V
U702 PIN2=3.3V
Replace U701, U702
X401 oscillate waveforms
are normal
Replace X401
Check if the sync signal from
computer is output and video
cable is connected normally
Input the sync signal of
computer, or change the
cable
Replace U401
NG
OK
Summary of Contents for AL1922
Page 1: ...0 Acer AL1922 Service Guide ...
Page 23: ...22 Rear Bezel Item Description 1 D SUB CABLE 2 DVI CABLE 3 AUDIO CABLE 4 AC POWER CORD ...
Page 27: ...26 II Dual Input Model Analog Signal Input III Dual Input Model Digital Signal Input ...
Page 34: ...33 Fig 4 Fig 5 ...
Page 35: ...34 Fig6 Fig 7 ...
Page 39: ...38 Fig13 ...
