-25-
Electrical Adjustments
Equipment Oscilloscope
Input mode
Computer [RGB(Analog)]
Image mode
Powerful
Input signal
16-step gray scale signal (
720p
)
1. Enter the service mode.
2. Change data values for each test points to adjust the
pedestal level and black level to be the same level.
Item no.
Test Point
0 - 3
TP35R
0 - 4
TP35G
0 - 5
TP35B
Blac
k Lebel
P
edestal Lebel
b
PC Pedestal adjustment
Equipment Oscilloscope
Input mode
Computer [RGB(Analog)]
Image mode
Powerful
Input signal
16-step gray scale computer signal
(720p format)
1. Enter the service mode.
2. Change data value for each test points to adjust
amplitude “
a
” to be below value.
Item no.
Test Point
Adjustment value
8 - 3
TP35R
10.0
±0.05Vdc
8 - 4
TP35G
10.0
±0.05Vdc
8 - 5
TP35B
10.0
±0.05Vdc
(a)
black level
black level
c
Reference adjustment
Equipment Oscilloscope
Input signal
16-step gray scale signal
6-a
Input mode
Computer [RGB(Analog)]
Image mode
Powerful
Input format
720p
computer signal
6-b
Input mode
Component_1
Image mode
Natural
Input format
480p
component signal
6-c
Input mode
Component_1
Image mode
Natural
Input format
480i
component signal
6-d
Input mode
Component_1
Image mode
Natural
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
6 - 0
TP35R
6 - 1
TP35G
6 - 2
TP35B
(a)
White Level
n
Sub gain adjustment
Equipment Oscilloscope
Input mode
Component_1
mode
Image mode
Natural
Input signal
16-step gray scale signal (
480p
)
1. Enter the service mode.
2. Change data values for each test points to adjust the
pedestal level and black level to be the same level.
Item no.
Test Point
4 - 25
TP_RIN
4 - 26
TP_GIN
4 - 27
TP_BIN
Blac
k Lebel
P
edestal Lebel
v
480p Offset adjustment