ViewSonic VA1912W Service Manual - Page 45

Panel Change Should be Performed to, Repair

Page 45 highlights

Defect Mode Abnormal BIOS &OSD Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair OSD Key Unavailable OSD Can't Input OSD Can't Read OSD No Display OSD Jiggle OSD Display Abnormal Check PCB Check Wire Check BIOS 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 Abnormal Loudspeaker Voice Loss Abnormal Loud L/R Abnormal No Voice L/R Same Volume Loudspeaker Noise Check PCBA Check Wire Check Loudspeaker Next Step AD/B Change CNT/B Change Power/B Change Inverter/B Change OSD/B Change OSD Cable Change Loudspeaker Change NG TEST Completed ViewSonic Corporation 42 Confidential - Do Not Copy VA1912w-2_VA1912wb-2

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Defect Mode
Failure Analysis
Repair
Testing
Abnormal BIOS
&OSD
Check PCB
Check Wire
AD/B Change
CNT/B Change
OSD cable
OSD No
Display
OSD Key
Unavailable
OSD Can’t
Input
OSD Can’t
Read
OSD Jiggle
OSD Display
Abnormal
Check BIOS
Inverter/B
Power/B Change
OSD/B Change
D-sub cable
VGA cable
DVI cable
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
Completed
Next Step
TEST
NG
ViewSonic Corporation
4
2
Confidential - Do Not Copy
VA1912w-
2
_VA1912wb-
2