Read Sharp XG-NV21SE (serv.man4) Service Manual online
26
XG-NV21SE
XG-NV21SM
XG-NV21SA
No.
Adjusting point
Adjusting conditions
Adjusting procedure
18
Video white
balance
balance
1. Feed the NTSC mono-
scope pattern signal.
Group : VIDEO 2
Subject : R1-GAIN
Group : VIDEO 2
Subject : R1-GAIN
B1-GAIN
»
Using the control switches or the remote controller
buttons, adjust the data so that the white balance be
just the best white balance.
If the black side is not properly adjusted, first
readjust the black side by making the following
choice:
buttons, adjust the data so that the white balance be
just the best white balance.
If the black side is not properly adjusted, first
readjust the black side by making the following
choice:
Group : OUTPUT 1
Subject : R1-BLK
Subject : R1-BLK
B1-BLK
Then, make the following choice:
Group : VIDEO 2
Subject : R1-GAIN
Subject : R1-GAIN
B1-GAIN
Readjust the related data.
Since the subjects R1-BLK and B1-BLK are com-
mon for the RGB input and VIDEO input, feed the
RGB signal again to adjust the white balance.
Since the subjects R1-BLK and B1-BLK are com-
mon for the RGB input and VIDEO input, feed the
RGB signal again to adjust the white balance.
17
SECAM colour
saturation level
saturation level
1. Feed the SECAM colour
bar signal.
Group : VIDEO 1
Subject : S-COLOR
Group : VIDEO 1
Subject : S-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
»
Using the control switches or the remote controller
buttons, adjust the data to have a level difference of
0.48 ±0.02 Vp-p between the 100% white portion and
the red portion.
buttons, adjust the data to have a level difference of
0.48 ±0.02 Vp-p between the 100% white portion and
the red portion.
19
Colour system
performance
check
performance
check
1. Receive the colour bar sig-
nal.
»
In the process mode and select L1. Check the colour
and tint.
and tint.
1. Receive the monoscope
pattern signal.
»
In the process mode and select L2. Check the pic-
ture, brightness and sharpness.
ture, brightness and sharpness.
16
PAL colour
saturation level
saturation level
1. Feed the PAL colour bar
signal.
Group : VIDEO 1
Subject : P-COLOR
Group : VIDEO 1
Subject : P-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
»
Using the control switches or the remote controller
buttons, adjust the difference between the 100%
white portion and the red portion to 0.48±0.02 Vp-p.
buttons, adjust the difference between the 100%
white portion and the red portion to 0.48±0.02 Vp-p.
100% White Red
0.48Vp-p
100% White Red
0.48Vp-p
20
Video system
performance
check
performance
check
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