Sony HVR-Z1C, Service Manual

Page: 245 / 482

6-54
HVR-Z1J/Z1U/Z1N/Z1E/Z1P/Z1C
24-2. PSD Sensor Gain Adjustment
(NTSC (60i) mode) (2)
Subject Pattern B
(1.5m from the front of the lens)
Measurement Point Video terminal of AUDIO/VIDEO
jack
Measuring Instrument Oscilloscope
(H period)
Adjustment Page F
Adjustment Address 85
Note1: The data of page: 0, address: 10 must be “00”.
Switch setting:
1) NTSC (60i)/PAL (50i) ......................................... NTSC (60i)
2) TV TYPE (IN/OUT REC menu) ................................... 16 : 9
3) ZOOM .................................................................... TELE end
4) FOCUS .................................................................. MANUAL
5) ND FILTER ...................................................................... OFF
Fig. 6-1-27.
Fig. 6-1-28.
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 “91” Falling edge of
waveform when
data is “8F”
Adjusting method:
Order Page Address Data Procedure
1 0 01 01 Set the data.
2 F 85 80 Set the data, and press PAUSE
button.
3 6 01 91 Set the data, and press PAUSE
button.
4 Shoot the pattern B with the
zoom TELE end.
5 Adjust the focus.
6 Measure the horizontal position
SH1 (
µ
sec) of the falling edge
of the waveform.
7 6 01 8F Set the data, and press PAUSE
button.
8 Measure the horizontal position
SH2 (
µ
sec) of the falling edge
of the waveform.
9 Obtain D
85
’ using the following
equation (decimal calculation).
D
85
’=128
×
(4.618/(SH1-SH2))
=591.1/(SH1-SH2)
10 Convert D
85
’ to hexadecimal
notation, and obtain D
85
. (Round
off to one decimal place)
(Note2)
11 F 85 D
85
Set the data, and press PAUSE
button.
Note2: Refer to “Table 6-4-1. Hexadecimal-decimal Conversion Table”
Processing after Completing Adjustments :
Order Page Address Data Procedure
1 6 01 00 Set the data, and press PAUSE
button.
2 0 01 01 Set the data.
3 Perform “Angular Velocity
Sensor Sensitivity Adjustment”.