Flange Back Adjustment (Using The Minipattern Box); Flange Back Adjustment - Sony MVC-FD97 Service Manual

2. Flange Back Adjustment (Using the minipattern box)

The flange back of inner focus lens is adjusted automatically. If
shifted, the auto focus is disordered.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Note 1: Dark Siemens star chart.
Note 2: Check that the data of page: 6, address: 02 is "00".
If not, turn the power of unit OFF/ON.
Preparations before adjustments:
1) The minipattern box is installed as shown in the following fig-
ure.
Note 3: The attachment lenses are not used.
Note 4: Take care not to hit the mini-pattern box when
extending the lens.
2) Install the minipattern box so that the distance between it and
the front of lens of camera is less than 3 cm.
3) Make the height of minipattern box and the camera equal.
4) Check the output voltage of the regulated power supply is the
specified voltage ± 0.01 Vdc.
5) Check that the center of Siemens star chart meets the center of
shot image screen with the zoom lens at TELE end and WIDE
end respectively.
6) Check that the data on page: F, address: 14 to 25 are initial
value (See table below).
Address Data Address
14 12 1D
15 A8 1E
16 38 1F
17 08
18 17
19 67
1A 00
1B 00
1C 00
CAMERA
Siemens star chart with ND filter
for minipattern box (Note 1)
Check operation on the LCD
screen
F
14 to 25
Data
00
41
00
20 20
21 20
22 20
23 44
24 0A
25 00
Specified voltage: The specified voltage varies according to the
minipatternbox, so adjustment the power sup-
ply output voltage to the specified voltage writ-
ten on the sheet which is supplied with the mini-
pattern box.
Minipattern box
Output voltage : Specified voltage ± 0.01 Vdc
Red (+)
Black (–)
Yellow (SENS +)
White (SENS –)
Black (GND)
Adjusting method:
Order Page Address Data
1 0 01
2 5 F1
3 D 63
4
5 6 01
6 6 01
7 6 02
Note 5: The adjustment data will be automatically input to page:
F, address: 14 to 25.
Processing after Completing Adjustment:
Order Page Address Data
1 6 01
2 5 F1
3 D 63
4
5 0 01
6
5-16
Below 3 cm
Camera
Camera
table
Regulated power supply
Output current : more than 3.5 A
Need not connected
Fig. 5-1-13
Procedure
01
FF
40 Press PAUSE button.
Perform "Data setting during
camera system adjustment".
(Refer to page 5-14)
13 Press PAUSE button.
27 Press PAUSE button. (Note 5)
Check the data changes to "01".
Procedure
00 Press PAUSE button.
00
00 Press PAUSE button.
Release the data setting
performed at step 4. (Refer to
page 5-14)
00
Perform"Flange Back Check".