6-18
6-2-11. Hall Adjustment
To eliminate the differences in the outputs of the hall element
attached to the iris for detecting the position of the lens iris, adjust
the hall AMP gain and hall offset.
Subject
Not required
Measurement Point
Lower 2 digits of the date of the page
Measuring Instrument
A displayed
Adjustment Page
F
Adjustment Address
06, 07
Specified Value
33 to 37 during IRIS OPEN
B4 to B8 during IRIS CLOSE
Adjusting method:
1) Set data: 01 to page: 6, address: 00.
2) Set data: 03 to page: 6, address: 02.
3) Set data: 03 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
4) Set data: 80 to page: F, address: 07, and press the PAUSE button
of the adjusting remote commander.
5) Set data: 40 to page: F, address: 06, and press the PAUSE button
of the adjusting remote commander.
6) Read the page A display data, and this data is named W2.
7) Set data: 30 to page: F, address: 06, and press the PAUSE button
of the adjusting remote commander.
8) Read the page A display data, and this data is named W1.
9) Set data: 01 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
10)Read the page A display data, and this data is named K1.
11)Set data: 40 to page: F, address: 06, and press the PAUSE but-
ton.
12)Read the page A display data, and this data is named K2.
13)Convert W1, W2, K1, K2 to decimal notation, and obtain W1’,
W2’, K1’, K2’. (Refer to Table. 6-5. “Hexadecimal notation-
decimal notation conversion table”.)
14)Calculate X1’ using the following equations (decimal notation
calculation).
A’= W2’+ K1’– W1’– K2’ .................................... Equation 1
B’= W1’– K1’
.................................................... Equation 2
X1’=
2064 + (48
×
A’) – (16
×
B’) ...................... Equation 3
A’
15) Convert X1’ to hexadecimal notation, and obtain X1.
(Round off to one decimal place)
16) Set data: X1 to page: F, address: 06, and press the PAUSE but-
ton of the adjusting remote commander.
17) Change the data of page: F, address: 07, and adjust the page A
display data to “35”.
18) Press the PAUSE button of the adjusting remote commander.
19) Set data: 03 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
20) Read the page A display data, and this data is named W0. If W0
lies within the “B4” to “B8” range, perform “Processing after
completing adjustments”. If it lies outside the range, perform
the following adjustments.
21) Convert W0 to hexadecimal notation, and obtain W0’.
22) Calculate X2’ using the following equations (decimal notation
calculation).
C’= W0’– B’– 52 ................................................... Equation 4
X2’=
(129 – B’)
×
(X1’– 48) + 48
×
C .................. Equation 5
C’
(X1’ and B’ are values obtained from equations 2 and 3)
23) Convert X2’ to hexadecimal notation and obtain X2.
(Round off to one decimal place)
24) Set data X2 to page: F, address: 06, and press the PAUSE button
of the adjusting remote commander.
25) Change the data of page: F, address: 07, and adjust tha page A
display data to “B6”.
26) Press the PAUSE button of the adjusting remote commander.
27) Set data: 01 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
28) Check that the page A display data lies within the “33” to “37”
range.
Processing after Completing Adjustments
1) Set data: 00 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
