NEC MultiSync FP1350 Service Manual page 55

3) Rough Adjustment before warm up Signal: No. 7 (VESA350@85) All White
a. Rough adjustment of horizontal raster position
1) Receive signal 27.
2) Adjust SCREEN VR on the FBT so that the back raster just appears.
3) Make sure to set the position of control as follows :
VR581 (on the DEF PWB)
SW581 (on the DEF PWB)
4) Open Menu (S), TAG2 "H.SIZE" and adjust the horizontal size to inside the bezel.
5) If raster has approached on the left of displayed area, switch SW581 position to the CRT side. If
raster has approached on the right of displayed area, switch SW581 position to VR581 side.
6) Adjust VR581 so that the raster edge is centered in the bezel.
b. Rough adjustment of vertical horizontal raster position
1) Receive signal 29. All White
2) Menu (S), TAG2 data on "V.LINEARITY" are 90, and it confirms that data on "V.LIN.BALANCE" are
128.
* When data are not 90 and 128, Open TAG2 "V.LINEARITY" and TAG2 "V.LIN.BALANCE", and set
up data.
3) Open Menu (S), TAG2 "V.SIZE", adjust "+", "-" SW so that the vertical raster size is 297±3.0 mm.
4) Open Menu (S), TAG 2 "V.RASTER CENTER" and push "RESET" SW.
5) Adjust the vertical raster and the space of the edge as listed below by switch.(Fig 1-2 reference)
| Ytop - Ybottom | ≤ 1.0mm
6) Push "EXIT" SW.
c. Rough adjustment of self test screen
1) Receive signal 7.
2) Open Menu(S), TAG1. Make sure that data on "SLFTST SYNC BAND" is "1".
3) Open Menu (S), TAG2 "V.POSITION" and adjust "+", "-" SW so that the picture is centered with in the
screen.
4) Open Menu (S), TAG2 "V.SIZE" and adjust it so that top and bottom picture size may be 3-5mm
from the bezel. When picture doesn't spread out, open Menu (S), TAG2 "V.SIZE MAX". If not able
to set picture size, open Menu (S), TAG2 "V.SIZE MAX", adjust so that screen may become full
with the bezel. And open Menu (S), TAG2 "V.SIZE" and adjust it so that top and bottom picture size
may be 3-5mm from the bezel.
5) Receive signal 13.
6) Open Menu (S), TAG2 "H.SIZE" and adjust the picture size is just the bezel.
7) Display the self test screen.
Note) Make sure that the screen is one image.
If there is not stable, Open Menu(S), TAG1"SLFTST SYNC BAND" and adjust "-"SW so that
the data is "0".
8) Make sure that the picture size is just the bezel.
Signal: No. 13 (MAC832*624) All White
Signal: No. 27 (H.HOLD 2(115k) fH=110kHz) All Black
Signal: No. 29 (V.RASTER) All White
: Fully clockwise (MAX)
: CRT side
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