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MX-710
Test Equipment/Tools Required:
audio oscillator (af osc)
VTVM
attenuator (600 2)
VOM
resistors ........ 600 22 (4 W),
100 kQ (4 W), 10 kQ (4 W)
Normal Input Level (Frequency:
1 kHz)
MIC INPUT
| LINE
INPUT
impedance
300 Q
|
10 kQ
input level
—60 dB
—10 dB
(0.78 mV)
(0.25 V)
Normal Output Level (Frequency:
1 kHz)
FIX OUTPUT
load impedance
100 kQ
OUTPUT level
—10 dB (0.25 V)
Note:
Connect
JUNCTION
POINT jacks with
the connection cords.
SECTION
3
ADJUSTMENTS
1. B+ Voltage Adjustment
Control/Switch Setting:
INPUT
ATT:
0dB
INPUT
SELECT:
MIC
MASTER
GAIN
CONTROL:
0
Procedure:
lL.
R902
Adjust R902 so that VOM indicates 42 V + 0.3 V.
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