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6-18
DNW-A22/A22P
6. LAU PB Phase Adjustment
Measuring equipment: Oscilloscope (X-Y mode)
(1) Connect and set the oscilloscope as follows:
CH-1: Pin 2 (X) of MONITOR OUTPUT L connector [GND: Pin 1(G)], AC
CH-2: Pin 2 (X) of MONITOR OUTPUT R connector [GND: Pin 1(G)], AC
n
An XLR-to-pigtail cable is very convenient to connect between the oscillscope and above-mentioned
connectors. Prepare two XLR-to-pigtail cables for this adjustment.
And connect the XLR plug end of the cable to MONITOR OUTPUT connector and the pigtailed end
to the oscilloscope.
The cables CH-1 and CH-2 shall be the same in the length and have the same wire color on the
pigtailed.
(2) For the DNW-A22, playback the 10 kHz,
_
10 VU portion (3:00 to 4:55) of the alignment tape CR8-
1A.
For the DNW-A22P, playback the 15 kHz, 0 VU portion (3:00 to 4:55) of the alignment tape CR8-1B
PS.
(3) Observe the lissajous waveform on the oscilloscope.
(4) Align the vertical and horizontal amplitudes of lissajous waveform to 60 mm square with the
VOLTS/DIV and VAR controls of the oscilloscope.
(5) Minimize the phase different A of lissajous waveform.
Adjustment point:
1
RV603/APR-12(F-1)
Specification:
A
<
5.2 mm (Refer to Figure 2.)
APR-12 Board (Side A)
S600
RV600
RV601
RV602
TP600
RV603
TP601
RV604
RV605
E600
TP501
RV503
TP500
RV501
RV502
RV500
S500
RV203
E200
TP700 TP560
COR201
20 18 16
TP201
RV103
E100
COR101
20 18 16
TP101
COR400
16 18 20
COR401
VAR (R)
UNITY (R)
TP400
RV400
E400
TP701
COR402
+4
0
–3
–20
COR300
16 18 20
COR301
VAR (L)
UNITY (L)
TP300
RV300
E300
COR302
+4
0
–3
–20
1
2
3
4
5
6
7
A
A
B
RV504
E500
C
D
E
F
G
A No.
LOTNO,
S NO,
APR–12
1-661-132-
MADE IN JAPAN
>EP–GW<
Figure 2. Waveform of LAU PB Phase Adjustment
6-2. APR-12 Board Replacement
60 mm
60 mm
A
Oscilloscope
Содержание Betacam SX DNW-A22
Страница 37: ...2 11 DNW A22 A22P 2 8 Location of Main Parts Front View Rear View ...
Страница 38: ...2 12 DNW A22 A22P 2 8 Location of Main Parts Top View of Cassette Compartment Top View of Mechanical Deck ...
Страница 49: ...2 23 DNW A22 A22P 2 14 Fixtures and Adjustment Equipment List 1 5 9 2 6 0 3 7 4 8 18 10 d l l S G L 6 6 d d ...
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Страница 286: ...Printed in Japan Sony Corporation 2001 6 08 B P Company 1997 DNW A22 SY DNW A22P SY E 3 193 847 06 ...