Sharp XG-V10WU Service Manual page 34

XG-V10WU
AN-SD1U/S422U
No. Adjusting point
21 DVD color
saturation
adjustment
22 DVD input panel
signal amplitude
adjustment
23 DVD white
balance check-
ing
24 Saw-tooth wave
correction (G),
(R)
Adjusting conditions
1. Feed the 100% color bar
signal of the 480I compo-
nent signal to the Y, Pb and
Pr input terminals on the
BNC socket.
2. Select the following group
and subject.
Group : DVD
Subject : COLOR
3. Connect the oscilloscope to
pin (1) of P801.
1. Feed the 10-step signal to
the G (Y) input terminal on
the BNC socket.
2. Select the following group
and subjects.
Group : DVD
Subject : R1-GAIN
B1-GAIN
3. Connect the oscilloscope to
pin (1) (for R) of P1001 and
pin (3) (for G) of P1001.
4. Similarly connect the oscil-
loscope to the following for
the B color.
Pin (5) of P1001 for B
Pin (3) of P1001 for G
1. Feed the NTSC
monoscope pattern signal
to the G (Y) input terminal
on the BNC socket.
2. Select the following group
and subjects.
Group : DVD
Subject : R1-BLK
B1-BLK
Make sure the lamp optical
axis has been already ad-
justed.
1. Feed the SXGA, 60-Hz
gray-only signal.
2. Check for uneven color
spot on the screen.
3. Select the following group
and subject.
Group : NOKO
Subject : NOKO-G
Choose the subject NOKO-
R for the R color.
Adjusting procedure
» Using the set's control switch or the remote
controller's button, adjust the setting so that the
amplitude between the 100% white and red levels
be 0.10 ± 0.02 Vp-p.
100% White Red
» Select R1-GAIN. Adjust the setting so that the R
signal amplitude and the G signal amplitude be
the same.
» Do the same for the B color.
» Make sure the white balance is the same as on
the monitor screen.
» If not, adjust the setting so that the white balance
be the same as on the monitor screen, using the
set's control switch or the remote controller's
button.
» When the green color is found not uneven, turn off
the saw-tooth wave correction with S4201.
» Select NOKO-G and adjust the setting to minimize
the color unevenness at right and left on the
screen.
For the R color, use S4202 to turn on or off the wave
correction.
34