ViewSonic Corporation
Confidential - Do Not Copy
62
Defect Mode
Failure Analysis
Repair
Testing
Abnormal BIOS
&OSD
Check PCB
Check Wire
AD/B Change
CNT/B Change
OSD cable Change
OSD No
Display
OSD Key
Unavailable
OSD Can’t
Input
OSD Can’t
Read
OSD Jiggle
OSD Display
Abnormal
Check BIOS
Inverter/B Change
Power/B Change
OSD/B Change
D-sub cable Change
VGA cable Change
DVI cable Change
BIOS Update
Abnormal
Loudspeaker
Check PCBA
Check Wire
AD/B Change
CNT/B Change
No Voice
Voice Loss
Abnormal
Loud
L/R
Abnormal
L/R Same
Volume
Check Loudspeaker
Inverter/B Change
Power/B Change
OSD/B Change
OSD Cable Change
Loudspeaker
Change
Loudspeaker
Noise
※
“
Panel Change” Should be Performed to
Level 3
Repair stage
Completed
Next Step
TEST
NG
VG2030m-1