Sharp PG-C30XU Service Manual page 28

PG-C30XU
No. Adjusting point
16 Video
brightness
adjustment
17 Video AGC
18 Tint
19 NTSC color
saturation level
20 PAL color
saturation level
21 SECAM color
saturation level
Adjusting conditions
1. Feed the baseband (split
color bar) signal. (The ON-
AIR signal is not accepted
because of its too much
noise.)
Group : VIDEO 2
Subject : VROS/VGOS/VBOS
2. Press the control switch or
the remote control's mute
button (to set the gamma
correction to the process
setting).
1. Feed the split color bar signal.
Group : VIDEO 1
Subject : AGC
1. Feed the split color bar sig-
nal.
Group : VIDEO 1
Subject : TINT
2. Connect the oscilloscope to
pin (4) of P801.
1. Feed the split color bar sig-
nal.
Group : VIDEO 1
Subject : N-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
1. Feed the PAL color bar sig-
nal.
Group : VIDEO 1
Subject : P-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
1. Feed the SECAM color bar
signal.
Group : VIDEO 1
Subject : S-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
Adjusting procedure
» Using the control switches or the remote controller
buttons, adjust the setting until the black signal
becomes bit-less.
» Using the control switches or the remote controller
buttons, adjust the setting until the white signal
becomes bit-less.
» Using the control switches or the remote controller
buttons, adjust the data to have the -(B-Y) wave-
form downhill straight.
» After adjusting, adjust the value
of TINT up 3 point.
» Using the control switches or the remote controller
buttons, adjust the difference between the 100%
white portion and the red portion to 0.00 ±0.05 Vp-p.
(same as 100% white)
100% White Red
» Using the control switches or the remote controller
buttons, adjust the difference between the 100%
white portion and the red portion to 0.2 ±0.05 Vp-p.
100% White Red
» Using the control switches or the remote controller
buttons, adjust the data to have a level difference
of 0.2 ±0.05 Vp-p between the 100% white portion
and the red portion.
100% White Red
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