Read Sharp XV-Z9000E (serv.man2) Service Manual online
25
No.
Adjusting point
Adjusting conditions
Adjusting procedure
XV-Z9000U/E
6
Adjusting the
Background
Color
Background
Color
1. Select the following group
and subject.
Group:
Group:
DLP
Subject:
R-GAIN
G-GAIN
B-GAIN
G-GAIN
B-GAIN
2. Feed the Component
video, 75% white signal.
3. Signal level: 0.7
±
0.05 Vp-p
(sync section not included)
4. R-GAIN, G-GAIN and B-
GAIN initial settings: 95
5. Target chromaticity:
x = 0.272
±
0.005
y = 0.310
±
0.005
(color temperature 9500K+15
µ
V)
1. Project an image over a 40-inch screen and
measure the chromaticity at the center using a
chromaticity meter.
chromaticity meter.
2. Keep the G-GAIN setting fixed at 95.
3. Adjust the B-GAIN setting to get the y value to its
3. Adjust the B-GAIN setting to get the y value to its
target chromaticity.
4. Adjust the R-GAIN setting to get the x value to its
target chromaticity.
7
Video horizontal
center adjust-
ment
center adjust-
ment
1. Feed the NTSC mono-
scope pattern signal.
INPUT4
INPUT4
2. Select the following group
and subject.
Group:
Group:
VIDEO 1
Subject: NTSC-H
1. Using the control switches on the set or the buttons
on the remote control, adjust the setting until the
overscan should be equal at right and left.
overscan should be equal at right and left.
5
RGB tone
reproduction
adjustment
reproduction
adjustment
1. Feed the SMPTE pattern
signal.
INPUT5
INPUT5
2. Select the following group
and subject.
Group:
Group:
DLP
Subject:
R-BRIGHT
G-BRIGHT
B-BRIGHT
G-BRIGHT
B-BRIGHT
1. Make sure the 100% and 95% white and the 0%
and 5% black tones are visible.
2. If the black tone appears otherwise, finely adjust the
R-BRIGHT, G-BRIGHT and B-BRIGHT settings.
8
Video BRIGHT-
NESS adjust-
ment
NESS adjust-
ment
1. Feed the NTSC 10-step
gray-scale signal.
2. Select the following group
and subject.
Group:
Group:
VIDEO1
Subject: BRIGHT
1. Using the control switches on the set or the buttons
on the remote control, adjust the setting until more
bit dropouts start at the 0% black level.
bit dropouts start at the 0% black level.
9
Video picture
adjustment
adjustment
1. Feed the NTSC 10-step
gray-scale signal.
2. Select the following group
and subject.
Group:
Group:
VIDEO1
Subject:
PICTURE
1. Using the control switches on the set or the buttons
on the remote control, adjust the setting until bit drop-
outs start at the 100% white level.
outs start at the 100% white level.
10
Video tint
adjustment
adjustment
1. Feed the internal 8CH (split
color bar) signal.
INPUT4
INPUT4
2. Select the following group
and subject.
Group:
Group:
VIDEO1
Subject:
TINT
1. Check the fixed setting.
Fixed setting: 128
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