Toshiba TLP-450U, Руководство по обслуживанию

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1-14
Adjust Items
7. White balance
adjustment
Input Signal
All white 50%
signal
10-stairstep
video signal
16-stairstep
RGB signal
Test
Equip-
ment
Color
lumi-
nance
meter
(BM-5)
Test Point
Shown
below
Adjust
mode
W03
W04
W05
Adjust Value
• Shown below.
Note
Table 1-4-3
1. Lay the unit in a dark room and input all white 50% signal, video 10-stairstep signal or RGB 16-stairstep
signal.
2. Affix the standard white board WS-2 on the top center of screen, or suspend it adjacent to the screen
from above.
3. Set the color luminance meter (BM-5) with more than 30 min. heat-run operation performed, so that color
temperature on the WS-2 can be measured.
4. Measure the color temperature by using the BM-5 and adjust with W03 and W05 in the adjustment menu
to obtain the value within the range of X = 0.285 ± 0.01 and Y = 0.310 ± 0.01.
Adjustment standard
a. Adjust Y by using in W05 mode.
b. Adjust X by using in W03 mode.
Color temperature: 8500
duv...less than 0.005
5. Input all white 100% signal.
Measure the luminance and the color temperature and record them.
6. Perform the steps 1 to 4 for the video input.
7. Enter 16 steps at RGB input and 10 steps at Video input. Then check the color temperature on black
side and adjust W0C and W0E if required. (Adjustment range should be within ±3 steps.)
8. White level adjust-
ment at RGB input
Window
signal with
center 98%
and periph-
eral 100%.
–––– –––– W03
W04
W05 • Adjust W03, W04
and W05 in the
same way
(modifying the
same data
amount) so that
98% white
appears a little.