Service manual

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