Sony FD Mavica MVC-FD75, Service Manual

Page: 63 / 90

5-12
4. Flange Back Check
Mode CAMERA
Subject Siemens star
(2.0 m from the front of the lens)
(Luminance: approx. 200 lux)
Measurement Point
Check operation on the LCD
Measuring Instrument
screen
Specified value Focused at the TELE end and the
WIDE end
Checking method:
Order Page Address Data Procedure
1 Place the Siemens star 2.0 m
from the front of the lens.
To open the IRIS , decrease
2
the luminous intensity to the
Siemens star up to a point be-
fore noise appear on the image.
3 0 01 01
4 3 02 01
5
Shoot the Siemens star with
the zoom TELE end.
6 Check that the lens is focused.
7 2 21 10 Press PAUSE button.
While observe the LCD screen,
8
change the zoom to the WIDE
end and check that the lens is
focused.
Processing after Completing Adjustment:
Order Page Address Data Procedure
1 2 21 00 Press PAUSE button.
2 3 02 00
3 0 01 00
5. Picture frame setting
Mode CAMERA
Subject Color bar chart standard picture frame
Measurement point Test point (VG) of CPC-9 jig
Measuring equipment Oscilloscope and LCD screen
Specification value A=B, C=D, t=0 ± 0.1 msec
Setting method:
1)
Adjust direction and zoom of camera so that the picture frame
is adjusted as specified by Fig. 5-1-10 and Fig. 5-1-11.
2) Mark the position of the picture frame on the LCD screen, and
adjust the picture frame to this position in following adjustment
using “Color bar chart standard picture frame”.
Confirm with an oscilloscope (TP-VG of CPC-9 jig)
Horizontal rate
A
B
A=B
C
D
C=D
2H
Y
ello
w
Cy
an
Green White
Red
Blue
Magenta
t =0
±
0.1msec
V
Color bar chart picture frame
LCD picture frame
Confirm on LCD (underscanned display)
Fig. 5-1-10
Vertical rate
Fig. 5-1-11
Fig. 5-1-12