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Electrical Adjustments
Equipment Oscilloscope
Input signal
16-step gray scale signal
9-1
Input mode
INPUT 2 [Analog RGB]
mode
Input format
720p computer
signal
9-2
Input mode
INPUT 4 [Video]
mode
Input format
NTSC composite
signal
9-3
Input mode
VIDEO_2 [Y,Pb/Cb,Pr/Cr]
mode
Input format
720p component
signal
9-4
Input mode
VIDEO_2 [Y,Pb/Cb,Pr/Cr]
mode
Input format
1080i component
signal
1. Enter the service mode.
2. Change data values for each test points to adjust the
waveform “
a
” to be minimum amplitude
in each
mode
.
Item no.
Test Point
7
TPPANELG
8
TPPANELB
9
TPPANELR
(a)
White Level
.
Gain adjustment
Input mode
INPUT 2 [Analog RGB]
mode
Input signal
1 line dot pattern 720p computer signal
1. Enter the service mode.
2. Project only one color component to the screen.
3. Change data value to obtain
the minimum flicker
for each color on the screen.
Item no.
Screen
13
Only
green
color picture
14
Only
blue
color picture
15
Only
red
color picture
⁄0
Common Center adjustment
Input signal
16-step gray scale signal
11-1
Input mode
INPUT 2 [Analog RGB]
mode
Input format
720p computer
signal
11-2
Input mode
INPUT 4 [Video]
mode
Input format
NTSC composite
signal
1. Enter the service mode.
2. If the black or white saturated picture can be seen,
adjust the item no. “
16
” to be reduced it in each
mode.
⁄1
Gamma adjustment
Input signal
16-step gray scale signal
12-1
Input mode
INPUT 2 [Analog RGB]
mode
Input format
720p computer
signal
12-2
Input mode
INPUT 4 [Video]
mode
Input format
NTSC composite
signal
1. Enter the service mode.
2. select item no. “
17
” (
Red
) or “
18
” (
Blue
), and
change data values respectively to make a proper
white balance.
Note:
Confirm that the same white balance is obtained in
video and computer input.
⁄2
White Balance adjustment
If you find the color shading on the screen, please
adjust the white uniformity by using the proper comput-
er and “Color Shading Correction” software supplied
separately. The software can be ordered as follows;
COLOR SHADING CORRECTION ver.. 3.03
Service Parts No.
645 066 7428
Note on WHITE UNIFORMITY Adjustment
nter the
the bla
he serv
ack o
he
a
vic
ce mo
r white
v
vic
or
sa
ated pic ure can be see
n e
n,
Equipm
.
Ga
ment
ain a
a
just
sc
men
scop
t
e
Inp
⁄
⁄
⁄
al
e sig
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men
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6 st
e ad
anc