Flange Back Adjustment (Using The Mini-Pattern Box) - Sony MVC-FD83 Service Manual

2. Flange Back Adjustment
(Using the mini-pattern box)
The inner focus lens flange back adjustment is carried out auto-
matically.
If disordered, the focus will be deviated during auto/manual fo-
cusing.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Note 1: Siemens star chart used is a darker one.
Note 2: Check that the data of page: 6, address: 02 is "00".
If not, turn the power of unit OFF/ON.
Preparation:
Install the mini-pattern box as shown below.
Note: The attachment lenses are not used.
Mini-pattern box
Red (+)
Black (–)
Yellow (SENS +)
White (SENS –)
Black (GND)
Fig. 5-1-12
STILL
Siemens star chart with ND filter
for mini-pattern box (Note 1)
Check operation on TV monitor
F
14 to 25
3 cm or less
Mavica
Regulated power supply
11.29 ± 0.01 Vdc, 3.5 A or more
No connection
Adjusting method:
1) Install the unit so that the distance between its lens surface
and mini-pattern box is less than 3 cm.
2) Align both heights of unit and mini-pattern box.
3) Make sure that the output voltage of regulated power supply is
11.29 ± 0.01 Vdc.
4) 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.
5) Select page: 0, address: 01, and set data: 01.
6) Check that the data on page: F, addresses: 14 to 25 are initial
values (See table below).
Address Data
FD83 FD88
14 22
15 44
16 31
17 32
18 16
19 BA
1A 00
1B 00
1C 00
7) Select page: 6, address: 01, set data: 13, and press the PAUSE
button of the adjusting remote commander.
8) Select page: 6, address: 01, set data: 27, and press the PAUSE
button of the adjusting remote commander.
(The flange back adjustment is performed and the adjustment
data is stored in page: F, address: 14 to 25)
9) Select page: 6, address: 02, and check that the data is "01".
Processing after Completing Adjustments:
1) Select page: 6, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
2) Select page: 0, address: 01, and set data: 00.
3) Perform "Flange Back Check".
5-14
Address Data
FD83 FD88
1C 1D 00
94 1E 35
26 1F 00
EC 20 20
13 21 20
B9 22 6E
00 23 44
00 24 0A
00 25 00
00
46
00
20
20
20
44
0A
00