XG-C40XE (serv.man3). Service manual section 2 - Additional and amended information - Sharp Projector Service Manual (repair manual). Page 6

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6
XG-C40XU
(
1
)
XG-C40XE
(
1
)
No.
Adjusting point
Adjusting conditions
Adjusting procedure
13
Horizontal
center
1. Feed the NTSC monoscope
pattern signal.
2. Group : VIDEO 2
Subject : N358-DLY     (4)
N443-DLY     (0)
PAL-DLY       (3)
SECAM-DLY (0)
Make sure the settings are
    as above.
3. Group : VIDEO 1
Subject : NTSC-H
»
Using the control switches or the remote controller
buttons, adjust the data to have the same overscan
in Reft and Right.
2.0Vp-p
14
Video picture
adjustment
1. Feed the split colour bar sig-
nal.
Group : VIDEO 1
Subject : PICTURE
2. Connect the oscilloscope
between pin (2) of P801 and
GND.
»
Using the control switches or the remote controller
buttons, adjust the black-to-white (100%) level
difference to 2.0 
±
0.06 Vp-p.
17
Tint
1. Feed the split colour bar
signal.
Group : VIDEO 1
Subject : TINT
2. Connect the oscilloscope to
pin (4) of P801.
»
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.
16
Video AGC
1. Feed the split colour bar signal.
Group : VIDEO 1
Subject : AGC
»
Using the control switches or the remote controller
buttons, adjust the setting until the white signal
becomes bit-less.
15
Video
brightness
adjustment
1. Feed the baseband (split
colour 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).
»
Using the control switches or the remote controller
buttons, adjust the setting until the black signal
becomes bit-less.
100% White Red
18
NTSC colour
saturation level
1. Feed the split colour bar sig-
nal.
Group : VIDEO 1
Subject : N-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 0.00 
±
0.05 Vp-p.
   (same as 100% white)
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