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Electrical Adjustments
4. Auto calibration adjustment [Component]
Input mode
Computer 1 (Component)
Input signal
480i component signal
Signal pattern
8 color bar
1. Enter the service mode
2. Select Group "
260
", No. "
0
" and then change data
value from
"
0
"
to "
1
"
. After the auto-calibration com
pleted
,
"OK"
will appear on the screen.
Below adjustments are performed when the above auto
calibration is failed.
Gain adjustment [Component]
1. Enter the service mode.
2. Adjust the amplitude "
a
" of waveform at each test point
to be minimum by changing the data value of Group -
No.
Group - No. Test Points
0 - 3
TP35G
(a)
White Level
5. Auto calibration adjustment [Video]
Input mode
Video
Input signal
Composite video signal
Signal pattern
16-step gray scale
1. Enter the service mode.
2. Select Group "
260
", No. "
0
" and then change data
value from "
0
" to "
1
". After the auto-calibration com-
pleted,
"OK"
will appear on the screen.
Below adjustment is performed when the above auto
calibration is failed.
Pedestal adjustment [Component]
Input signal
480i component signal
Signal pattern
16-step gray scale
Equipment
Oscilloscope
1. Enter the service mode.
2. Adjust the black level on each test point to be minimum
by changing the data value of Group - No.
Group - No. Test Points
0 - 0
TP35G
0 - 1
TP35R
0 - 2
TP35B
Black Lebel
Gain adjustment [Video]
Equipment
Oscilloscope
1. Enter the service mode.
2. Adjust the amplitude "
a
" of waveform at each test point
to be minimum by changing the data value of Group -
No.
Group - No. Test Points
20 - 0
TP35G
(a)
White Level
