Electrical Adjustment; Model Setting; Adjustment Of Cw Index; White Balance Adjustment - Sharp XV-Z3000 Service Manual

XV-Z3000
DT-500
No. Adjusting point
1 EEPROM
initialization
2

Model setting

3 Adjustment of
CW index
4 R/G/B contrast
adjustment
(manual or
automatic)
5 White balance
adjustment

ELECTRICAL ADJUSTMENT

Adjusting conditions
1. Turn on the power (with the
lamp on) and warm up the
set for 15 minutes.
(Process menu)
1. Select the following group
and subject.
Group: CONFIRM
Subject: MODEL-SELECT
1. Signal input: Send 256
STEP color bar to INPUT5.
(SVGA60HZ or XGA60HZ)
2. Select the following group
and subject.
Group: ADJUST
CW/Auto KS
Subject: CW-INDEX.
1. Select the following group
and subjects.
Group : ADJUST/AD
Subject : R-CONT
G-CONT
B-CONT
(Process GAMMA interlock)
2. Feed white signal with the
amplitude level of 96%
(0.67Vpp) to INPUT5.
(SVGA60Hz or XGA60Hz)
1. Feed the component 75%
gray signal to INPUT5.
2. Select the following group
and subjects.
Group : ADJUST
WB
Subject : R-GAIN
B-GAIN
Adjusting procedure
» Make the following settings.
Press S6213 to call the process mode and execute
"SS2" on SS menu.
1. Set as below.
XV-Z3000: 1 (default)
DT-500: 0
1. Adjust the lamp gradation patterns of RGBW so
that smooth patterns without noise appear.
W
R
G
B
1. Measure chromaticity of the 96% white wind pattern
using CA100.
2. On the screen where bit dropouts occur, raise the
values of R/G/B-Contrast. Adjust the values so that
bright red, green, and blue bit dropouts appear on a
black background; and amounts of change in x value
of R and y values of G/B become 100/1000 or more.
3. If adjustment is performed manually watching the
screen, make adjustment so that bright red, green,
and blue bit dropouts appear on more than half of
the screen.
1. Adjust R-GAIN and B-GAIN so that the following
chromaticity vales are obtained using CL200.
X value: 298±5
Y value: 319±5
22