Sony CCD-TRV26E, Service Manual, Page: 100 / 181

5-16
2. HALL Adjustment
For detecting the position of the lens iris, adjust the hall AMP gain
and offset.
Subject Not required
Measurement Point DDS display data of LCD or TV monitor
(Note 3)
Measuring Instrument
Adjustment Page F
Adjustment Address 2F, 30
Specified Value 7E to 82 during IRIS OPEN (Note 1)
13 to 17 during IRIS CLOSE (Note 2)
Note 1: Select page: 2, address: 01, set data: 01, and press the
PAUSE button of the adjusting remote commander.
Note 2:
Select page: 2, address: 01, set data: 03, and press the
PAUSE button of the adjusting remote commander.
Note 3: DDS display data of LCD or TV monitor.
00 00XX
n Object data
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 0, address: 03, and set data: 03.
3) Select page: D, address: 11, set data: 02, and press the PAUSE
button of the adjusting remote commander.
4) Select page: 2, address: 01, set data: 03, and press the PAUSE
button.
5) Select page: F, address: 30, set data: 80, and press the PAUSE
button.
6) Select page: F, address: 2F, set data: 40, and press the PAUSE
button.
7) Read the DDS display data (the bottom two digits of the display
data at the bottom right of the LCD display or the TV monitor),
and this data is named K
2
.
8) Select page: F, address: 2F, set data: 30, and press the PAUSE
button.
9) Read the DDS display data, and this data is named K
1
.
10)Select page: 2, address: 01, set data: 01, and press the PAUSE
button.
11)Read the DDS display data, and this data is named W
1
.
12)Select page: F, address: 2F, set data: 40, and press the PAUSE
button.
13)Read the DDS display data, and this data is named W
2
.
14)Convert W
1
, W
2
, K
1
, K
2
, to decimal notation, and obtain W
1
' ,
W
2
' , K
1
' , K
2
'. (Refer to Table 5-1-2. “Hexadecimal notation -
decimal notation conversion table”.)
15)Calculate X
1
' using the following equations (decimal notation
calculation).
A’= W
2
'+ K
1
'– W
1
'– K
2
' Equation 1
B’= W
1
' – K
1
' Equation 2
X
1
'=[1696+(48 x A’)–(16 x B’)] / A’ Equation 3
16)Convert X
1
' to hexadecimal notation, and obtain X
1
.
(Round off to one decimal place)
17)Select page: F, address: 2F, set data: X
1
, and press the PAUSE
button.
18)Select page: 2, address: 01, and set data: 01, and press the PAUSE
button.
19)Select page: F, address: 30, change the data and adjust the DDS
display data to “80”.
20)Press the PAUSE button of the adjusting remote commander.
21)Select page: 2, address: 01, and set data: 03, and press the PAUSE
button.
22)Read the DDS display data, and this data is named K
0
. If K
0
lies
within the “13” to “17” range, perform “Processing after com-
pleting adjustments”. If it is lies outside the range, perform the
following adjustments.
23)Convert K
0
to decimal notation, and obtain K
0
'.
24)Calculate X
2
' using the following equations (decimal notation
calculation).
C’= 128 – B’– K
0
' Equation 4
X
2
'=[(106 – B’) x ( X
1
' – 48)+(48 x C’)] / C’
Equation 5
( X
1
' and B’ are values obtained from equations 2) and 3) )
25)Convert X
2
' to hexadecimal notation, and obtain X
2
.
(Round off to one decimal place)
26)Select page: F, address: 2F, set data: X
2
, and press the PAUSE
button.
27)Select page: 2, address: 01, set data: 03, and press the PAUSE
button.
28)Select page: F, address: 30, change the data and adjust the DDS
display data to “15”.
29)Press the PAUSE button of the adjusting remote commander.
30)Select page: 2, address: 01, set data: 01, and press the PAUSE
button.
31)Check the DDS display data lies within the “7E” to “82” range.
Processing after Completing Adjustments
1) Select page: D, address: 11, and set data: 00, and press the PAUSE
button.
2) Select page: 0, address: 01, and set data: 00.
3) Select page: 2, address: 01, and set data: 00, and press the PAUSE
button.
4) Select page: 0, address: 03, and set data: 00.