ViewSonic VG2021m-1 Service Manual page 52

ViewSonic Corporation
Failure Analysis
¡° " Panel Change" Should be Performed to
stage
B
Display White
Out
Booting Delay
Brightness
Even
Abnormal
Beat Display
No Backlight
No signal
R.G.B
Display
Abnormal
Gray Scale
Display
Abnormal
C
Check PCBA
Check PCBA
Check PCBA
Check Panel
Check Adapter
Check PCBA
Check Wire
Check Panel
Next Step
Confidential - Do Not Copy
49
Repair
Level 3
AD/B Change
Power/B Change
Inverter/B Change
OSD/B Change
Power/B Change
Inverter/B Change
Panel Change
Adapter Change
AD/B Change
CNT/B Change
VGA cable
DVI cable
Panel Change
NG
TEST
Completed
VG2021m-1
Testing
Repair