ViewSonic VA712b-1 Service Manual page 43

Defect Mode
ViewSonic Corporation
Failure Analysis
A
" Panel Chan
e" Should be Performed to
Flicker
Gray value
display
R.G.B display
abnormal
Display Shut
Down
No signal
Power on
Display
abnormal
Level 3
Check PCB
Check Panel
Check PCB
Check Panel
Check PCB
Check Panel
Check Wire
Check PCB
Check Panel
Check PCB
Check Wire
Check PCB
Check Panel
Next Step
Confidential - Do Not Copy VA712-1_VA712b-1
40
Repair Testing
Repair stage
AD/B Change
P/B Change
Panel Change
AD/B Change
Panel Change
AD/B Change
CNT/B Change
Panel Change
D-sub cable
change
AD/B Change
P/B Change
Panel Change
AD/B Change
CNT/B Change
D-sub cable change
AD/B Change
Panel Change
NG
TEST
Completed