XG-P25XE (serv.man11). Electrical adjustment - Sharp Projector Service Manual (repair manual). Page 5

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XG-P25X
32
No.
Adjusting point
Adjusting conditions
Adjusting procedure
20
DVD Brighthess
1. Feed the color bar signal of
the 480I component signal
to the BNC G(Y) input ter-
minal.
2. Select the following subject.
Group : DVD
Subject : CONTRAST
»
Using the control switches or the remote controller
buttons, adjust the setting until the black sig-
nal(0%) becomes bit-less.
21
DVD Tint
1. Feed the color bar signal of
the 480I component signal
to the BNC Y, Pb and Pr in-
put terminals. Feed the
sync signal only for the Y
signal.
2. Select the following subject.
Group : DVD
Subject : TINT
3. Connect the oscilloscope to
TP1301.
22
DVD Color
1. Feed the color bar signal of
the 480I component signal
to the BNC G(Y) input ter-
minal.
2. Select the following subject.
 Group : DVD
Subject : COLOR
3. Connect the oscilloscope to
TP1101.
»
Adjust the level difference between the 100% white
and red portions to 0.3 ±0.02 Vp-p.
23
DVD White
balance
adjuustment
1. Feed the NTSC mono-
scope signal to G(Y) input
terminal of the BNC termi-
nal.
2. Select the following subject.
Group : DVD
Subject : R1-BLK
B1-BLK
»
 Adjust so that a white balance may become the best
condition by using the control switch or  buttons of
the R/C.
24
Checking and
readjustment of
white balance
1.The adjustment condition of
each item is as mentioned
in the following.
RGB input:Refer to No.11
VIDEO input:Refer to No.19
DVD input:Refer to No.23
»
Make sure that a white balance is the best condi-
tion.
»
Using the control switches or the remote controller
buttons. Adjust the setting so that the points indi-
cated in the waveform figure are at the same level.
SAME LEVEL
100% White Red
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