Service manual

ViewSonic Corporation Confidential - Do Not Copy
67
Defect Mode Failure Analysis Repair Testing
LED Off
No Powe
r
LED Dark
LED Abnormal
LED Flicke
r
Power ON/OFF
Abnormal
LED Display
Abnormal
Check PCBA
Check Wire
AD/B Change
CNT/B Change
OSD Cable
Inverter/B Change
Power/B Change
OSD/B Change
AC Power Change
DC Power CNT
Cable Chan
g
e
Adapter Change
Check Adapter
Check PCBA
Check Wire
OSD Cable Change
Inverter/B Change
Power/B Change
OSD/B Change
DC Power CNT
Cable Chan
g
e
Adapter Change
AD/B Change
LED Loss
Turn Off
Abnormal
Check PCBA
Check Wire
Next Ste
p
TEST
NG
Completed
※ “ Panel Change” Should be Performed to Level 3 Repair stage
VX2245wm-1