Sony MX-710 - Page 6

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.