ViewSonic N4200w-1 VS10945-1M Service Manual page 76

11.3 No Display
AV mode
Check
Jack6,Jack7
NO
S-VIDEO mode
NO
Check
Jack6,Jack
YCbCr mode
NO
Check Jack8
YES
NO
Check
U15,U19
YES
Check power for U51,
CN45&CN59
NO
Replace U51
Check LVDS
Wire harness
ViewSonic Corporation
YES
Replace
Jack6,Jack7
YES
Replace
Jack6,Jack7
Replace
Jack8
Replace
U15,U1
NO
YES
NO
Check
U10
YES
Check U11
YES
NO
Check U54
YES
Check U51
YES
Check
panel
YES
Replace
panel
75
Confidential - Do Not Copy
Replace U10
NO
Check power for U11.
U9.U5.X1
Replace U54
NO
Check panel/
power board
N4200w-1