Hall Adjustment - Sony Video8 Handycam CCD-TR71 Service Manual

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8.
HALL Adjustment
Subj
Measurement Point
|
:
.
:
DDS display of EVF or monitor TV
Measuring Instrument
;
Adjustment Page
08 (HALL GAIN)
09 (HALL OFFSET)
Adjusting method:
31 to 35 during IRIS OPEN
BI to BS during IRIS CLOSE
1)
Release the protect.
Page: 6, address: 00, data: 01
2)
Set data: 40 to page: F, address: AF, and press the PAUSE
button of the adjusting remote control unit.
(HALL output display mode setting)
3)
Set data: 03 to page: 6, address: 01, and press the PAUSE
button of the adjusting remote control unit.
(IRIS CLOSE mode setting)
4)
Set data: 40 to page: F, address: 08, and press the PAUSE
button of the adjusting remote control unit.
5)
Read the DDS display data (the bottom two digits of the
display data at the bottom right of the EVF or the monitor
TV display), and set to W2.
6)
Set data: 30 to page: F, address: 08, and press the PAUSE
button of the adjusting remote control unit.
7)
Read the DDS display data, and set to W1.
8)
Set data: 01 to page: 6, address: 01, and press the PAUSE
button of the adjusting remote control unit.
(IRIS OPEN mode setting)
9)
Read the DDS display data, and set to K1.
10) Set data: 40 to page: F, address: 08, and press the PAUSE
button.
11) Read the DDS display data, and set to K2.
12) Convert W1, W2, Ki, K2 to decimal notation, and obtain
W1', W2', Ki', K2*. (Refer to Table 7-6. "Hexadecimal
notation-decimal notation conversion table".)
13) Calculate
X1° using the following
equations
(decimal
notation calculation).
Adjustment Address
Specified Value |
A'=W2°+K 1 — W117" — Ka' cccecseccsccccsecssccccnees Equation 1
"=W1" -
Ki' POrrerrreerrrerrrrrr errr rere errr errr er reer Equation 2
X1 = OES
& rc SIGE)
22 sascaniestuns Equation 3
14) Convert X1' to hexadecimal notation, and obtain X1.
(Round off to one decimal place)
15) Set data: X1 to page: F, address: 08, and press the PAUSE
button of the adjusting remote control unit.
;
16) Change the data of page: F, address: 09, and adjust the DDS
display data to "33".
17) Press the PAUSE button of the adjusting remote control
unit.
18) Set data: 03 to page: 6, address: 01, and press the PAUSE
button of the adjusting remote control unit.
(IRIS CLOSE mode setting)
19) Read the DDS display data, and set to Wo. If Wo lies within
the
"Bi"
to
"BS"
range,
perform
"Processing
after
completing adjustments". If it lies outside the range, perform
the following adjustments.
20) Convert Wo to hexadecimal notation, and obtain Wo'.
21) Calculate
X2° using the following
equations
(decimal
notation calculation).
*=W0' -B'-
5] ecccvccccccsedacencccccccccccccssssees Equation 4
X2°=
128 — B')x
x= 48)+48 XC",
Equation 5
(X1' and B' are values obtained from equations 2 and3)
22) Convert X2' to hexadecimal notation and obtain Xz.
(Round off to one decimal place)
23) Set data X2 to page: F, address: 08, and press the PAUSE
button of the adjusting remote control unit.
24) Change the data of page: F, address: 09, and adjust the DDS
display data to "B3".
25) Press the PAUSE button of the adjusting remote control
unit.
26) Set data: 01 to page: 6, address: 01, and press the PAUSE
button of the adjusting remote control unit.
(IRIS OPEN mode setting)
27) Check that the DDS display data lies within the "31" to "35"
range.
Processing after Completing Adjustments
1)
Set data: 00 to page: 6, address: 01, and press the PAUSE
button of the adjusting remote control unit.
(IRIS NORMAL mode setting)
— 200 —

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