BELINEA 10 55 70, Руководство по обслуживанию

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4.22. Adjustment Procedures
422.1. Adjustment Sequence
This display undergoes an automatic alignement procedure
during manufacture. This alignment procedure follows a fixed
sequence of adjustments which are
in this section.
When making manual adjustments during service, you should
always make the adjustments in the order given here to ensure
correct results.
4.222. Preset Timings Used During Adjustment
During alignment it is necessary to input certian preset tim-
ings stored in the display. The detailed parameters of all the
preset timings are given in the table below for your reference.
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Part 2.
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Non-VA Version
4.21. Preparing the Display for
Adjustment
Before adjusting any the display settings or making final
adjustments after service, perform the following pre-test set-
tings to prepare the display for adjustment:
1. Be sure to allow the display to warm up for at least 30
minutes before making any adjustments.
2. When making tests and adjustments, the CRT should be
facing east or west to minimize the affect of the earth’s
magnetic field.
3 .
Set the contrast control at 80% and the brightness con-
trol at 50% for all tests unless otherwise specified.
4 . Thoroughly degauss entire screen with a manual
degausser before proceeding with tests.
5. All test should be performed the rated power
supply voltage unless otherwise specified.
The preset timings for different versions of
this model may differ from those shown
here. Be sure to check the list of preset
timings for the unit being serviced.
I
421.1. Test Equipment Required
The following equipment will be required to make the tests
and adjustments detailed in this section:
Video signal and pattern generator
Digital multimeter
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Degausser
C
8 0 0
6 0 0
46.875
75.000
72.809 75.000 7 0 . 0 8 0
25.175
0.636
49.500
31.500 I 31.500 36.000 25.175 25.175 Pixel 110.550 75.000 65.000
Hor. FP 0.434 0.320 0.369 0.323 0 . 7 6 2 0 . 5 0 8 0 . 6 6 7 0 . 6 3 6 0 . 6 3 6
1.616
3.232
16.162
21.333
26.413 26.667
28.444 31.778 31.778
0.021 0 . 2 3 8 0 . 0 2 7 0 . 0 2 8
T
0 . 3 1 8 3 8 1 1 . 1 7 6
Ver.
I
0.063 0.106 0.124
Ver. BP ms(C) 0.563 0.513 0.600
Ver. Active ms(D) 16.006 13.599 15.880
Ver. Total 16.663 14.272 16.666
0.064 0 . 0 7 9 0 . 0 8 0 0 . 0 5 7 0 . 0 6 4 0 . 0 6 4 0 . 0 6 4
1 . 9 0 7 I
0.488
12.800
0.626 1.048 1.112
17.067 15.253 12.711
17.778 16.683 14.269
+.+ -.- -.+
I I
Primary mode is (1024x768)
Table 4-2 Table of preset Timing Parameters
4-5