BELINEA 10 55 70, Руководство по обслуживанию

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The adjustment settings in this section are
based on REVISION B of the factory align-
ment procedures. Appendices detailing
changes in the factory alignment proce-
dures that have occurred since publication
of this service manual are available upon
recauest.
initial settings to be carried out manu-
ally prior to automatic
4.23. High Voltage Verification
1. Input a cross hatch pattern in primary mode. Check that
the 75V voltage is Adjust (see
for location) to correct if necessary.
2 . Input a cross hatch pattern in primary mode and adjust
on the mainboard (see for approximate
location) so the high voltage is in the range
3. Input a full white pattern in
(800x600) mode and push H-size button to set up the
step at 50. then adjust
to make at just full
screen.
Location of
BOARD
MAIN
I
Figure 4-2 Location of on Mainboard
Steps used in white balance adjust-
ment:
4.24. Background Brightness Setting
1. Input a raster pattern in primary mode and turn external
brightness to maximum. Adjust the SCREEN VR so
background brightness is approximately
2. Before carrying out white balance adjustment, make
sure that the display size and linearity are in
3 . Input timing in primary mode, and the white balance
automatic adjust some item as blow.
(a) Input no video pattern in primary mode, and set-up
brightness of raster white balance get the
value is
(b) Input a full white pattern in primary mode, and.set-up
5000 degrees kelvin of picture white balance get the
value is
(c) Input a full white pattern in primary mode, and set-up
6500 degrees kelvin of picture white balance get the
value is
(d) Input a full white pattern in primary mode, and set-up
9300 degrees kelvin of picture white balance get the
value is
4.25. Screen Brightness Adjustment
1. Input a primary mode timing, with no video input. Ad-
justment VR301 and make ABL no action and adjust
external brightness to
2 . Input a white pattern, set external contrast to maxi-
mum and adjust VR302 and check that brightness at the
center of the screen is in the range
a full
white pattern, set external brightness to maximum and
adjust VR301 and check that brightness at the center of
the screen is in the range
4.26. Magnetic Field Configuration
Configure the magnetic as follows:
Northern hemisphere : H=O.O
Southern hemisphere : H=O.O V=-0.52
4.27. Tilt Verification
Input a cross hatch pattern in primary and use the
tilt
rotation to that tilt is less than lmm.
4.28. Focus Verification
Input a full white in primary mode. Use the
external brightness control to adjust background
ncss so it is
not
visible and set external contrast so the
brightness is 30FL. Switch to a display of charac-
ters .
4-6