Sharp XG-V10WU Service Manual page 31

No. Adjusting point
8 RGB white 1. Feed the 32-step grayscale
balance adjust-
ment 2. Select the following group
9 Video horizontal 1. Feed the NTSC
center adjust-
ment 2. Group : VIDEO 2
DLY checking
3. Then select the following
10 Video picture 1. Feed the split color bar
adjustment
2. Select the following group
3. Connect the oscilloscope
11 Video offset 1. Feed the color bar signal
adjustment
2. Select the following group
Adjusting conditions
signal. (SXGA, 60 Hz)
and subjects.
Group : OUTPUT1
Subject : R1-BLK (R)
B1-BLK (B)
monoscope pattern signal.
Subject : N358-DLY (2)
N443-DLY (0)
PAL-DLY (0)
SECAM-DLY (0)
Make sure the settings are
as above.
group and subject.
Group : VIDEO1
Subject : NTSC-H
signal.
and subject.
Group : VIDEO1
Subject : PICTURE
between pin (1) of P801
and GND.
with base band. (ON-AIR
not allowed because of its
too much noise.)
and subjects.
Group : VIDEO2
Subject : VROS (R)
VGOS (G)
VBOS (B)
Make sure there are some
bit dropouts on the screen.
If not, press the set's con-
trol switch or the remote
controller's mute button.
(Gamma correction is now
set for the adjustment proc-
ess.)
31
Adjusting procedure
» Adjust the R1-BLK and B1-BLK settings to get the
tone balance to optimum.
» Using the set's control switch or the remote con-
troller's button, adjust the setting so that the
overscan be the same at right and left.
» Using the set's control switch or the remote con-
troller's button, adjust the setting so that the ampli-
tude between the black and 100% white levels be
2.3 ± 0.02 Vp-p.
» Using the set's control switch or the remote con-
troller's button, adjust the settings so that the black
signal has some bit dropouts.
XG-V10WU
AN-SD1U/S422U
2.3Vp-p