Sony Cyber-Shot DSC-P72, Service Manual

Page: 37 / 74

6-17
DSC-P72
4. Picture Frame Setting
Mode STILL ( )
Subject Color bar chart and clear chart
(Standard picture frame)
About 30 cm from the front of the lens
Measurement Point Video terminal of A/V OUT jack
Measuring Instrument Oscilloscope and TV monitor
Specified Value A=C=B/2, E=F
Switch setting:
ZOOM .................................................................... WIDE end
CAMERA setting (Menu setting) ................................ AUTO
Setting method:
Order Page Address Data Procedure
1 Check that “1. Data Setting during
Camera System Adjustments” is
performed.
2 Shoot the color bar chart with the
zoom WIDE end.
3 Adjust the direction and distance
between the pattern box and
camera, and set the picture
frame to the specified position.
4 Remove the color bar chart and set
the clear chart.
5 Check that the whole of the
screen is white. If not, adjust the
direction and distance slightly.
6 10 44 Read the data, and this data named
YH.
7 10 45 Read the data, and this data named
YL.
8 60 2C 01 Write the data.
9 Perform the following adjustments.
How to reset the zoom and focus when they deviated:
If the zoom and focus deviated due to some reason reset them in the
following method.
Order Page Address Data Procedure
1 60 2C 01 Write the data.
2 60 90 00 Write the data.
3 60 91 00 Write the data.
4 60 92 YL Write the data. Note
5 60 93 YH Write the data. Note
6 60 01 79 Write the data.
7 Wait until the movement of the
lens stops.
8 60 07 Read the data, and check it is “01”.
9 60 01 00 Write the data.
Note: YH and YL are the data read in the “Setting method”.
Check on an oscilloscope
1. Horizontal period
Fig. 6-1-10.
2. Vertical period
Fig. 6-1-11.
Check on the monitor TV (Underscanned mode)
Fig. 6-1-12.
E=F
V
E F
Color bar chart picture frame
Effective picture frame
A B C
B
A
C
A = C =
B
2