ViewSonic VG2021m-1 - Page 52

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