Service manual

ViewSonic Corporation Confidential - Do Not Copy
65
Failure Analysis Repair Testing
Gray Scale
Display
A
b
normal
R.G.B
Display
Abnormal
No signal
Display White
Ou
t
Brightness
Even
Abnormal
Next Ste
p
TEST
NG
Completed
B
Booting Delay
C
Beat Display
No Backlight
Check PCBA
AD/B Change
Inverter/B Change
Power/B Change
Check Panel
Check PCBA
Panel Change
Power/B Change
Inverter/B Change
CNT/B Change
AD/B Change
Check PCBA
VGA cable Change
DVI cable Change
Check Wire
Check Panel
Panel Change
OSD/B Change
Check PCBA
Adapter Change
Check Adapter
※ “ Panel Change” Should be Performed to Level 3 Repair stage
VX2245wm-1