3-4 (E)
MAV-70
5.
Set the oscilloscope.
.
VOLTS/DIV : DC 2V/DIV (CH-1, CH-2)
.
SEC/DIV :
10 ms/DIV
.
TRIG :
CH-1
6.
Connect the CH-2 prove of the oscilloscope to TP304
(G-1), and prove’s GND to E301 (G-1).
7.
Align the burst phase to
+
90
d
with the SC PHASE
knob of the signal generator SG2 clockwise (
2
)
slowly.
8.
Turn RV301 (F-1) clockwise (
2
) slowly until the
waveform of the oscilloscope’s CH2 (TP304) change
from
b
to
a
. (Immediately before changing from
b
to
a
.)
9.
Align the burst phase to
_
90
d
with the SC PHASE
knob of the signal generator SG2 counterclockwise
(
3
) slowly. Make sure that the waveform of the
oscilloscope’s CH2 is
b
during the SC PHASE knob
turning.
10. Align the burst phase to
+
90
d
with the SC PHASE
knob of the signal generator SG2 clockwise (
2
)
slowly. Make sure that the waveform of the oscillo-
scope’s CH2 is
b
during the SC PHASE knob
turning.
11. If the specification is not met in step 9 or step 10, re-
adjust from step 7.
12. Re-align the burst phase to reference position with the
SC PHASE knob of the signal generator SG2 clock-
wise (
3
) slowly.
CH-1
(FIELD REF)
CH-2
(TP304)
b
a
A
1
2
3
4
5
B
C
D
E
F
G
J
H
E301
TP304
RV301
1
SPG-15 board (A side)
+
90
d
_
90
d
+
90
d
3-2. SPG-15 Board Adjustment
<Vector monitor>
<Oscilloscope>
