Video System Adjustments - Sony DSC-T20 Service Manual

1-5.

VIDEO SYSTEM ADJUSTMENTS

1-5-1. Function of Each Button on Video System
Adjustment Screen
Click the [VIDEO SYSTEM ADJUSTMENT] button on the Main
Menu screen, and the "VIDEO SYSTEM ADJUSTMENT"
screen in Fig. 6-1-17 will appear.
2
Fig. 6-1-17
1 [To Menu] button
The Main Menu screen comes back.
2 [Preparation] button
Notes for adjustment or jigs used are displayed.
3 [Start] button
Each adjustment "Composite Video Level Adjustment" or
"Component out (Y, Pb, Pr) Level Adjustment" starts.
4 [Reboot] button
When this button is clicked, the camera is rebooted.
5 [Release Data Setting] button
The data setting at the adjustment is cancelled.
During the data setting, the button color changes from "white"
to "red". When the data setting is cancelled, the button color
returns to "white".
(Use this button when an error occurred in the video adjust-
ment. If the adjustment completed successfully, the data set-
ting is automatically cancelled and the button color returns to
"white".)
1-5-2. Adjustment Items of VIDEO System Adjust-
ment
The adjustment items of video system adjustment are as listed in
Table 6-1-3. The Automatic Adjustment Program executes the ad-
justment items if the VIDEO Adjustment Start button is clicked.
Button
Adjustment
Name
Composite Video
Level Adj.
COMPONENT OUT
VIDEO
Y Level Adj.
Adjustment
COMPONENT OUT
Pb Level Adj.
COMPONENT OUT
Pr Level Adj.
DSC-T20/T25_ADJ
1
3
4
5
Measurement Point
VIDEO terminal of USB, A/V, DC IN
cable for multi-USB terminal
(75 ohm terminated)
R040 on Multi board (HD Station)
R041 on Multi board (HD Station)
R042 on Multi board (HD Station)
Table 6-1-3
Measuring
Instrument
Oscilloscope
Oscilloscope
Oscilloscope
Oscilloscope
6-18
Adjusting Address
Block Page Address
11 60 06DE
11 60 06BF
11 60 06C0
11 60 06C1