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5-23
CCD-TRV107/TRV108/TRV308/TRV408/TRV608
2. Contrast Adjustment (VF-150 board)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Note: Do either of the automatic adjustment or the manual adjustment.
2-1. Automatic Adjustment
Mode
Camera
Subject
Arbitrary
Adjustment Page
7
Adjustment Address
3A
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
6
01
E5
Set the data, and press PAUSE
button.
button.
3
6
02
Check that the data changes
from “00” to “01”.
from “00” to “01”.
4
6
01
00
Set the data, and press PAUSE
button.
button.
5
0
01
00
Set the data.
2-2. Manual Adjustment
Mode
Camera
Subject
Arbitrary
Measurement Point
EVF VG
(Pin qf of CN713 of VC-272 board)
(Pin qf of CN713 of VC-272 board)
Measuring Instrument
Oscilloscope
Adjustment Page
7
Adjustment Address
3A
Specified Value
A = 2.32 ± 0.12V
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
7
3A
Change the data and set the
voltage (A) between the 100 IRE
and 0 IRE (pedestal) to the
specified value.
(The data should be “00” to “7F”.)
voltage (A) between the 100 IRE
and 0 IRE (pedestal) to the
specified value.
(The data should be “00” to “7F”.)
3
7
3A
Press PAUSE button.
4
0
01
00
Set the data.
Fig. 5-1-15.
100 IRE
Pedestal
A
2H
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