Contrast Adjustment (Vf-149 Board); Automatic Adjustment; Manual Adjustment - Sony DCR-IP5 Service Manual

DCR-IP5/IP5E/IP7BT/IP7E

2. Contrast Adjustment (VF-149 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
Subject
Adjustment Page
Adjustment Address
Note: The cabinet (R) must be connected.
Adjusting method:
Order Page Address Data
1 0 01
2 3 00
3 3 01
4 3 00
5 0 01
Camera
Arbitrary
C
81
Procedure
01 Set the data.
0E Set the data, and press PAUSE
button.
Check that the data changes from
"0E" to "00".
00 Set the data, and press PAUSE
button.
00 Set the data.

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 C 81
3 C 81
4 0 01
3 steps peak
A
Pedestal
5-30
Camera
Arbitrary
Pin 1 of CN2205 (G)
Oscilloscope
C
81
A = 2.4 ± 0.1V
Procedure
01 Set the data.
Change the data and set the
voltage (A) between the 3 steps
peak and pedestal to the specified
value.
(The data should be "00" to "7F".)
Press PAUSE button.
00 Set the data.
2H
Fig. 5-1-16.