Flange Back Adjustment - Sony MVC-FD71 Service Manual

21) Read DDS displayed data, and assume it as W
rage of "76 to 7A", perform "processing after adjust-ment
finished". If out of the range, make the following adjustment.
22) Convert W into decimal number to get W
0
23) Calculate X ' with the formulas given below (calculate decimal
2
numbers).
C'=W '+K '-W '-20 ............................................. Formula 4
0 1 1
(100-B')x(X '-48)+(48xC')
1
X '=
2
C'
(X ' is obtained from formula 3)
1
24) Convert X ' into decimal number to get X
2
(Round off the decimal place.)
25) Set data: X to page: F, address: C7, and press the PAUSE button
2
on the adjustment remote commander.
26) Change the data on page: F, address: C8, so that DDS displayed
data is "78".
27) Press the PAUSE button on the adjustment remote commander.
28) Set data: 01 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
29) Confirm that DDS displayed data is in a range of "12 to 16".
Processing after adjustment finished:
1) Set data: 00 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
2) Set data: 00 to page: 0, address: 03.
3) Set data: 00 to page: 0, address: 01.
. If W is in a
0 0
'.
0
................................. Formula 5
.
2

4. Flange back adjustment

The flange back of inner focus lens is adjusted auto-matically. If
shifted, the AUTO FOCUS and MANUAL FOCUS aredisordered.
Subject
Measurement point
Measuring equipment
Adjustment page
Adjustment address
Adjustment procedure:
1) Confirm that the center of flange back adjustment chart
coincides with the center of image screen with the zoom lens
at the TELE position and WIDE position respectively.
2) Set data: 01 to page: 0, address: 01.
3) Make sure that the data on page: F, address: B6 to BB, BE to
C5 are initial values listed in table below.
Address Data Address Data Address Data
B6 CD BE
B7 19 BF
B8 92 C0
B9 21 C1
BA 12 C2
BB 14 C3
4) Confirm that the data on page: 2, address: 02 is "00".
5) Set data: 13 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
6) Set data: 15 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
(The adjustment data are automatically entered to page: F,
address: B6 to BB, BE to C5.)
7) Confirm that the data on page: 2, address: 02 is "01".
Processing after adjustment finished:
1) Set data: 00 to page: 2, address: 01, and press the PAUSE button
on the adjustment remote commander.
2) Turn off the main power supply (7.2 V).
5-13
Flange back adjustment chart
(2 m ± 5 mm position from lens front)
(Illuminance: 250 ± 50 lux)
Operation check on LCD screen
F
B6 to BB, BE to C5
00 C4 2E
00 C5 00
41
00
19
00