NEC DPro2070SB, Руководство по обслуживанию

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(3) Set the output of the signal generator to crosshatch (white/normal).
(4) Set OSM to the select picture of HFOCD (DBF-H-PHASE) in FACT1, and adjust the focus
balance of point 1 and point 3 in the above figure using (-) (+) buttons.
* (3) and (4) should be carried out with all preset timing.
(5) Set OSM to the select picture of DBF2T (DBFV2 TOP) in FACT1, and adjust using (-) (+)
buttons so that the focus level of point 4 and point 2 in the above figure can be balanced.
(6) Set OSM to the select pictutre of DBF2B (DBFV2 BOTTOM) in FACT1, and adjust using (-)
(+) buttons so that the focus level of point 2 and point 5 in the above figure can be bal-
anced.
* (5) and (6) should be carried out with timing No. 12 (106.25kHz/85Hz, 1600x1200).
2.4.4 Adjusting the cut off
2.4.4.1 Adjusting BTCEN (BRIGHT-CENT), BTMAX (BRIGHT-MAX) and BS1 (BIAS-H)
<In case pre-adjustment before aging is carried out >
(1) Input timing No. 12 (106.25kHz/85Hz, 1600x1200) with the signal generator (R, G and B
OFF).
(2) Set each adjustment item to the following value.
BRIGHTNESS : 7F
(FACT3)
R-BS1(R-BIAS-H) : 00
G-BS1(G-BIAS-H) : 8A
B-BS1(B-BIAS-H) : 00
BTMAX (BRIGHT-MAX) : 800
(3) Set the back raster luminance to 0.3 +/- 1cd/m 2 with FBT screen VR.
(4) Adjust the back raster color coordination to the value listed in the following table with R-
BS1 (R-BIAS-H) and B-BS1 (B-BIAS-H).
(5) Adjust the back raster luminance to 0.3 +/- 0.1cd/m 2 with BTCEN.
(6) If the back raster color coordination is deviated from the values listed in the following table,
repeat steps (4) and (5).
(7) Adjust the back raster luminance to 3.0 +/- 0.2cd/m 2 with BTMAX.
DBF-H-AMP / PHASE adjustment
Adjustment item
Cut off
Adjustment mode/set
Factory
Imput signal/pattern
No. 12:106.25kHz / 85Hz, 1600x1200
Status
indicator
Image signal
Horizontal parabola wave
1
2
5
4
3
DBF-H-PHASE
DBF-H-AMP
The center of the horizontal
parabola waveform and
center of the image signal
waveform must match.