Sony DCR-TRV940 Adjustment Manual page 39

DCR-TRV940/TRV940E/TRV950/TRV950E
15-2. PSD Sensor Gain Adjustment (2)
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
A4 size (297 x 210 mm)
Adjusting method:
Order Page Address Data
1 0 01
2 F 85
3 6 01
4
5
6
7 6 01
8
9
10
11
12 F 85
Note 1: Keep a note of D
Sensor Sensitivity Adjustment".
Note 2: Refer to table 6-4-1. "Hexadecimal-decimal conversion
table"
Pattern B
(1.5 m from the front of lens)
Video terminal of A/V jack
Oscilloscope (H period)
F
85
Pattern B
Fig. 6-1-19
Procedure
01
80 Press PAUSE button.
8F Press PAUSE button.
Shoot the pattern B at the
TELE end.
Adjust the focus.
Measure the falling edge of
waveform, SH1 (µsec).
91 Press PAUSE button.
Measure the falling edge of
waveform, SH2 (µsec).
Calculate D using
SH
following equations.
(decimal calculation) (Note 1)
NTSC:
= 7.821 ÷ (SH1 – SH2)
D
SH
PAL:
= 7.876 ÷ (SH1 – SH2)
D
SH
Calculate D ' using
85
following equations.
(decimal calculation)
' = 128 × D
D
85 SH
Convert D ' to a hexadeci-
85
mal number, and obtain D
(Note 2)
D Press PAUSE button.
85
value to use at "16. Angular Velocity
SH
Processing after Completing Adjustment:
Order Page Address Data
1 6
2 0
3
Falling edge of
waveform when
data is "91"
.
85
6-36
Procedure
01 00 Press PAUSE button.
01 00
Check that the steady shot
function operates normally.
H
Falling edge of
waveform when
data is "8F"
SH1–SH2
SH1 (µsec)
SH2 (µsec)
Fig. 6-1-20