Sony DSR-250, Руководство по обслуживанию

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5-29
20-2. Steady Shot Adjustment (2)
Subject Pattern B
(1.5m from the front of the lens)
Measurement Point Video output terminal
Measuring Instrument Oscilloscope
(H period)
Adjustment Page F
Adjustment Address 42
Fig.5-1-16.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: EB, set data: 76, and press the PAUSE
button of the adjustment remote commander.
3) Expose pattern B with the zoom TELE end.
4) Adjust the focus.
5) Measure the horizontal position SH1 (
µ
sec) of the falling edge
of the waveform. (Oscilloscope is H period)
6) Select page: F, address: EB, set data: 8A, and press the PAUSE
button.
7) Measure the horizontal position SH2 (
µ
sec) of the falling edge
of the waveform. (Oscilloscope is H period)
8) Obtain D
42
' using the following equation (decimal calculation).
D
42
' =
3.90
×
0.6
× 99
SH1 – SH2 YAW sensor sensitivity
Note: YAW sensor sensitivity (SE600 of SE-116 board) is written only
on the repair parts.
9) Convert D
42
' to hexadecimal notation, and obtain D
42
. (Round
off to one decimal place)
(Refer to Table 5-4-1. “Hexadecimal notation-Decimal notation
conversion table” of “5-4. Service Mode”. )
10) Select page: F, address: 42, set data: D
42
, and press the PAUSE
button.
Processing after Completing Adjustments
1)
Select page: F, address: EB, set data: 80, and press the PAUSE
button of the adjustment remote commander.
2) Select page: 0, address: 01, and set data: 00.
3) Check that the steady shot operation is performed normally.
Fig. 5-1-17.
White White
Black
Pattern B
A4 size (297mm
×
210mm)
H
SH2 (
µ
sec)
SH1 (
µ
sec)
SH1–SH2
Falling edge of
waveform when
data is “76” Falling edge of
waveform when
data is “8A”