Adjustment Of Component Offset; Adjustment Of Dlp Brightness; Video Contrast Adjustment; Adjustment Of Video Tint - Sharp XV-Z3000 Service Manual

Check items
No. Adjusting point
1 Adjustment of
Component
offset
2 Adjustment of
DLP Brightness
3 Video Contrast
adjustment
4 Adjustment of
Video Brightness
5 Adjustment of
Video Tint
6 Adjustment of
Video color
saturation
7 RGB tone
reproduction
adjustment
Adjusting conditions
1. Feed 10-step signal with
480P component 100%
amplitude.
2. Select the following group
and subjects.
Group : ADJUST/AD
Subject : C-R-OS
C-B-OS
(Process GAMMA interlock)
1. Select the following group
and subject.
Group : CONFIRM/DLP
Subject : R-BLK
G-BLK
B-BLK
(Process GAMMA interlock)
1. Feed NTSC 100% wind
pattern signal. (Signal with
burst)
2. Select the following group
and subjects.
Group : CONIRM/
VIDEO
Subject : V-CONT
1. Feed NTSC 100% wind pat-
tern signal. (Signal with
burst)
2. Select the following group
and subject.
Group : CONFIRM/VIDEO
Subject : V-BRIGHT
1. Feed split color bar.
2. Select the following group
and subject.
Group : CONFIRM/VIDEO
Subject : V-HUE
1. Select the following group
and subject.
Group : CONFIRM/VIDEO
Subject : V-COLOR
1. Feed the SMPTE pattern
signal.
Adjusting procedure
1. Check the fixed value.
C-R-OS : 257
C-B-OS : 256
1. Check the fixed value.
Fixed value : 252
1. Check the fixed value.
Fixed value : 134
1. Check the fixed value.
Fixed value : 68
1. Check the fixed value.
Fixed value : 128
1. Check the fixed value.
Fixed value : 139
1. Make sure the 100% and 95% white as well as the
0% and 5% black gradations are visible.
23
XV-Z3000
DT-500