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B
C
ViewSonic Corporation
Failure Analysis
※ " Panel Change" Should be Performed to
stage
Display White
Out
Booting Delay
Check PCBA
Brightness
Even
Abnormal
Check PCBA
Beat Display
No Backlight
Check Adapter
No signal
R.G.B
Display
Abnormal
Gray Scale
Display
Abnormal
Check PCBA
Check Panel
Check PCBA
Check Wire
Check Panel
Next Step
47
Confidential - Do Not Copy
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
Completed
VE720m-1_VE720mb-1
Testing
Repair
TEST
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