ViewSonic VA1912w-3 Service Manual page 45

Defect Mode
Abnormal BIOS
&OSD
Abnormal
Loudspeaker
ViewSonic Corporation
Failure Analysis
※ " Panel Change" Should be Performed to
OSD Key
Unavailable
OSD Can't
Input
OSD Can't
Read
OSD No
Display
OSD Jiggle
OSD Display
Abnormal
Voice Loss
Abnormal
Loud
L/R
Abnormal
No Voice
L/R Same
Check Loudspeaker
Volume
Loudspeaker
Noise
Check PCB
Check Wire
Check BIOS
Check PCBA
Check Wire
Next Step
42
Confidential - Do Not Copy
Repair Testing
Level 3
AD/B Change
CNT/B Change
Power/B Change
Inverter/B
OSD/B Change
D-sub cable
OSD cable
VGA cable
DVI cable
BIOS Update
AD/B Change
CNT/B Change
Power/B Change
Inverter/B Change
OSD/B Change
OSD Cable Change
Loudspeaker
Change
NG
Completed
VA1912w-3_VA1912wb-3
Repair
TEST