Adjusting The Picture Inclination; Adjusting The Back Raster Position; Adjusting The Left/Right Distortion, Picture Width, Picture Position - NEC FP1355 Service Manual

2.4.4.1

Adjusting the picture inclination

Adjustment item
Status
Picutre inclination
indicator
Set the OSD to ROTATE, and using (-) / (+) buttons, set the raster inclination to be horizontal
to the CRT face surface.
2.4.4.2

Adjusting the back raster position

Adjustment item
Status
Back raster position
indicator
(1) Set BRT to 100% to show the back raster.
(2) Adjust the horizontal back raster position to the center of the bezel using H-POSI (VR5A1).
At this time, the raster width will be |L1-L2| ≤ 2.0mm.
2.4.4.3 Adjusting the left/right distortion, picture width, picture position (H-PHASE) and
vertical linearity (all preset)
(1) Confirm that DOWN / UP adjustment bar in User mode is at approximately center.
<Setting in the factory mode for the following steps>
(2) Adjust the vertical size to approx. 297mm, and the vertical position to the approximately
center.
(3) Select VERTICAL and VERTICAL BALANCE in LINEARITY with the OSD, and adjust so
that the vertical linearity is equal at the very top of the picture, at the very bottom of the
picture, and at the center of the picture.
(4) Select DOWN / UP and SHORT / TALL with the OSD, and adjust the vertical width and
vertical position to the specified values using (-) / (+) buttons.
(5) Select IN / OUT, LEFT / RIGHT, PCC-CENTER, TOP and BOTTOM with the OSD, and
adjust the vertical line at both side of the picture to the straight line using (-) / (+) buttons.
(6) If the left and right distortions differ, select PIN-BALANCE, TILT, TOP-BALANCE and
BOTTOM-BALANCE with the OSD, and adjust so that the distortions are visually balanced.
(7) Select LEFT / RIGHT of OSD group USER2 with the OSD, and adjust the horizontal raster
position to the center of the picture using (-) / (+) buttons.
(8) Select NARROW / WIDE with the OSD, and adjust the horizontal raster width to the value
given in the adjustment list using (-) / (+) buttons. (Refer to 2.5.1.10 Adjustment value list.)
* Note (1) PCC-SINE and PIN-BALANCE are used only for touch up.
* Note (2) The picture position and distortion must be within the ranges given in the
picture performance inspection items. (Refer to 2.5.1.8 Picture distortion.)
Adjustment mode/set
Factory
Adjustment mode/set
Factory
L1
Imput signal/pattern
No. 12:106.25K / 85Hz, 1600x1200
Crosshatch with frame
Imput signal/pattern
No. 25:85Hz, 1800x1350
Only the sync. signal input
Back raster
L2
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