Hitachi 0506E, Руководство по обслуживанию

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CP-X960WA
CP-X970W
4 - 8 Color uniformity adjustment
Adjustment preparations
1. Make this adjustment after completing the
adjustment in 4-7 "White balance adjustment".
2. Reset color uniformity correction.
Position the cursor on C.UNIF in the Adjustment
Menu and then press the RESET key.
3. This adjustment is used to assure color uniformity
over the entire screen by adjusting in sequence the
white balance of each of the 33 points shown in the
diagram below, starting with the smallest signal.
4. Do not adjust adjustment point No. 1 because, as
with DAC-P - SUB BRIGHT in the Adjustment
Menu, the brightness of the entire screen will be
changed.
5. Basically, only adjustment points No. 2 and No. 3
can be adjusted for the color green (G).
Adjustment Menu
24
22 14 23
12
20
21
13
29
16 28 30
25
27 26 15 17
32 33 31
6 4 8
2 1 3
7 5 9
18 10 11 19
V/6
H/6 H/3 H/6 H/3
V/3
V/3
V/6
Representative adjustment points
VIDEO
ON
DAC-P S/H C. UNIF.
OFF
No. 1 R 128 G 128 B 128
Representative adjustment points No.
4 - 7 White balance adjustment
Adjustment procedure
1. Make this adjustment after completing the
adjustment in 4-6 NRSH adjustment.
2. Use the XGA VESA (60) timing signal to input a
0.7Vp-p 16-step G primary color signal.
3. Use DAC-P - SUB BRIGHT - G: and DAC-P - SUB
CONTRAST - G: in the Adjustment menu to adjust
to the optimum 16-step shading characteristics
(visually).
Adjustment hints:
Lock DAC-P - SUB CONTRAST - G: at 30. Also lock
DAC-P - BLACK2-GAIN - G: at 32.
Use SUB BRIGHT - G: to adjust until the last two of the
16 steps on the bright side can no longer be saturated
and then return slightly.
After adjusting, if contrast is thought to be insufficient,
use DAC-P - SUB CONTRAST - G: to slightly increase
the contrast and then readjust.
To lower only the black level, adjust BLACK2-GAIN - G:.
4. Switch to a 0.21Vp-p white signal.
5. Use DAC-P - SUB BRIGHT - R: and DAC-P - SUB
CONTRAST - B: in the Adjustment menu to adjust
until the color coordinates in the center of the
screen are as follows.
X = 0.280 0.005, Y = 0.340 0.01 (low brightness
white balance).
6. Switch to a 0.52Vp-p white signal.
7. Use DAC-P - SUB BRIGHT - R: and DAC-P - SUB
CONTRAST - B: in the Adjustment menu to adjust
until the color coordinates in the center of the
screen are as follows.
X = 0.280 0.005, Y = 0.345 0.01 (low brightness
white balance).
8. Repeat the operations described in items (4) - (7)
and adjust the low brightness and medium
brightness white balance.
9. Next, switch to a 0.07Vp-p white signal.
10. Use DAC-P - BLACK2 GAIN - R: and DAC-P -
BLACK2 GAIN - B: in the Adjustment menu to
adjust until the color coordinates in the center of
the screen are as follows.
X = 0.270 0.03, Y = 0.320 0.03 (black white
balance).
Note:
Use the Minolta CL-100, Color Differential Meter for
measurements and adjustments.