NEC VT440 Service Manual page 69

METHOD OF ADJUSTMENTS
Check the vertical shadows of R, G, B.
No shadows
Adjust the vertical shadows of G and R. (1-3-1)
Check the vertical shadows of B.
Adjust the vertical shadows of B. (1-3-2)
Check the horizontal shadows of R, G, B.
No shadows
Adjust the horizontal shadows of G. (1-3-3)
Check the horizontal shadows of R.
Adjust the horizontal shadows of R. (1-3-4)
Check the horizontal shadows of B.
Adjust the horizontal shadows of B. (1-3-5)
Check the vertical and horizontal shadows of R, G, B.
5-22
Start of adjustment
Shadows present
Shadows present
Shadows present
No shadows
End of adjustment
Shadows present
Shadows of G and
R present
No shadows
Shadows of only B
present
Shadows present
Shadows of G
present
No shadows
Shadows of R
present;
no shadows of G
No shadows
Shadows of only
B present
Shadows present
Fig. 1
Vertical shadows
present
Horizontal shadows
present