NEC Multi Sync EA221WM Service Manual page 16

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2.6 Color defect (Missing color(R, G, B)) / White balance defect
Color defect (Missing color(R, G, B))/
White balance defect
Factory Reset is executed.
"R, G, B" of the OSD menu
Check the signal cable.
Replace the MAIN PWB.
Replace the LCD panel.
NG
is adjusted.
NG
OK
NG
OK
End
OK
OK
NG
Replace signal cable
OK
2-7

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