-25-
Electrical Adjustments
Equipment Oscilloscope
Input signal
16-step gray scale signal
4-a
Input mode
Input 2 [RGB(Analog)]
Image mode
Dynamic
Input format
computer signal
4-b
Input mode
Input 1 [Y,Pb/Cb,Pr/Cr]
Image mode
Natural
Input format
480p
component signal
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
in
each mode
.
Item no.
Test Point
204
TP35G
203
TP35R
205
TP35B
Note:
Perform the adjustment in order as G - R - B.
Blac
k Lebel
P
edestal Lebel
v
Pedestal adjustment
Equipment Oscilloscope
Input mode
Input 2 [RGB(Analog)]
Image mode
Dynamic
Input signal
16-step gray scale computer signal
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
10
TP35R
10.0
±0.05Vdc
11
TP35G
10.0
±0.05Vdc
12
TP35B
10.0
±0.05Vdc
(a)
black level
black level
c
Reference adjustment
Equipment Oscilloscope
Input signal
16-step gray scale signal
5-a
Input mode
Input 2 [RGB(Analog)]
Image mode
Dynamic
Input format
computer signal
5-b
Input mode
Input 1 [Y,Pb/Cb,Pr/Cr]
Image mode
Natural
Input format
480p
component signal
5-c
Input mode
Input 1 [Video]
Image mode
Natural
Input format
composite video 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
TP35R
8
TP35G
9
TP35B
(a)
White Level
b
Sub gain adjustment
