ViewSonic VA1912W Service Manual - Page 43

Level 3 - horizontal lines

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Defect Mode C Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair Horizontal Line Defect Vertical Weak Line Horizontal Weak Line Vertical Band Defect Horizontal Band Defect Power Saving Display Abnormal Check PCBA Check Panel Check PCBA Peculiar Smell Check PCBA AD/B Change Panel Change AD/B Change AD/B Change Power/B Change Inverter/B Change Next Step NG TEST Complete ViewSonic Corporation 40 Confidential - Do Not Copy VA1912w-2_VA1912wb-2

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Defect Mode
Failure Analysis
Repair
Testing
Horizontal
Line Defect
Vertical
Weak Line
Peculiar Smell
Check PCBA
Check Panel
Horizontal
Weak Line
Next Step
TEST
NG
AD/B Change
Panel Change
Horizontal
Band Defect
C
Vertical
Band Defect
Power Saving
Display
Abnormal
Check PCBA
AD/B Change
Inverter/B Change
Power/B Change
Check PCBA
AD/B Change
※
“ Panel Change” Should be Performed to
Level 3
Repair
Complete
ViewSonic Corporation
40
Confidential - Do Not Copy
VA1912w-
2
_VA1912wb-
2