Contrast Adjustment (Vf-150 Board); Automatic Adjustment; Manual Adjustment - Sony Handycam Vision CCD-TRV107E Service Manual

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).
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
1 0 01 01
2 6 01 E5
3 6 02
4 6 01 00
5 0 01 00
RadarW RadarW RadarW RadarW RadarW
Procedure
Set the data.
Set the data, and press PAUSE
button.
Check that the data changes
from "00" to "01".
Set the data, and press PAUSE
button.
Set the data.
CCD-TRV107E/TRV108E/TRV208E/TRV408E

2-2. Manual Adjustment

Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
Order Page Address Data
1 0 01
2 7 3A
3 7 3A
4 0 01
100 IRE
A
Pedestal
5-23
Camera
Arbitrary
EVF VG
(Pin qf of CN713 of VC-272 board)
Oscilloscope
7
3A
A = 2.28± 0.12V
Procedure
01 Set the data.
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".)
Press PAUSE button.
00 Set the data.
2H
Fig. 5-1-15.