Hall Adjustment; Flange Back Adjustment - Sony MVC-FD91 Service Manual

2. HALL Adjustment

For detecting the position of the lens iris, adjust the hall AMP gain
and offset.
Subject Not required
Adjustment Page F
Adjustment Address C7, C8
Note: Check that the data of page: 2, address: 02 is 00. If not, select page:
2, address: 01, set data: 00 and press the PAUSE button of the
adjustment remote commander.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 01, set data: 6D, and press the PAUSE
button of the adjustment remote commander. (The HALL
adjustment is performed and the adjustment data is stored in
page: F, address: C7, C8 and page: E, address: 1E.)
3) Select page: 2, address: 02, and check that the data is "01".
Processing after Completing Adjustments
1) Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
2) Select page: 0, address: 01, and set data: 00.

3. Flange Back Adjustment

The inner focus lens flange back adjustment is carried out
automatically. In whichever case, the focus will be deviated during
auto focusing/manual focusing.
Subject
E
1E
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Adjusting method:
1)
2)
3)
Address
4)
5)
6)
7)
Processing after Completing Adjustments
1)
2)
5-11
Flange back adjustment chart
(2.0 m from the front of the protection
glass)
(Luminance: 350 ± 50 lux)
Check operation on LCD screen
F
B6 to BB, BE to C5
Check that at both the zoom lens TELE end and WIDE end,
the center of the chart for the flange back adjustment and center
of the exposure screen coincide.
Select page: 0, address: 01, and set data: 01.
Check that the data of page: F, address: B6 to BB, BE to C5 is
the initial value (See table below).
Data
B6 56
B7 19
B8 E0
B9 21
BA E7
BB 11
BE 00
Select page: 2, address: 02, and check that the data is "00".
Select page: 2, address: 01, set data: 13, and press the PAUSE
button of the adjustment remote commander.
Select page: 2, address: 01, set data: 15, and press the PAUSE
button of the adjustment remote commander.
(The adjustment data will be automatically input to page: F,
addresses: B6 to BB, BE to C5.)
Select page: 2, address: 02, and check that the data is "01".
Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
Select page: 0, address: 01, and set data: 00.
Address Data
BF 00
C0 23
C1 00
C2 19
C3 00
C4 11
C5 00