Inspections （検査 - Yamaha MG206C-USB Service Manual

I
INSPECTIONS
1. Measurement Conditions
1-1 Environment
• Temperature: From 5 °C to 40 °C.
• Humidity: From 30 % to 90 %.
1-2 Power Source
The voltage is within ±10 %. AC adaptor PA-30 should be used.
• U : 120 V (WE524200)
• H : 230 V (WE523900)
• B : 230 V (WE523700)
• A : 240 V (WE523600)
• K : 220 V (WE524100)
• O : 220 V (WE523800)
1-3 Application software of USB AUDIO
Use an application software that can be set as follows.
Sampling rate
Resolution
2. Mixer Check
2-1 Preparation
• The load resistances for each output terminals are as follows:
PHONES (L/R)
ST OUT
Others
2-2 Unless otherwise specified, the controls should be set as follows:
• CH INPUT (1-12)
GAIN control
80 switch
COMP control (1-8)
EQ (HIGH, MID, LOW) GAIN control
EQ MID frequency control
AUX1, AUX2, AUX3, AUX4 level control
AUX2, AUX3 PRE switch
PAN control
ON switch
PFL switch
1-2, 3-4 switch
ST switch
Channel fader
• ST INPUT (13/14-19/20)
GAIN control
80
EQ (HIGH, MID, LOW) GAIN control
AUX1, AUX2, AUX3, AUX4 level control
AUX2, AUX3 PRE switch
PAN/BAL control
ON switch
PFL switch
: 48 kHz or 44.1 kHz
: 16 bits
: 40 Ω (=3 W or more than 3 W)
: 600 Ω
: 10 kΩ
Maximum (-60/-34 dBu)
OFF
Minimum
CENTER
Minimum
Maximum
OFF (POST)
L (turned counterclockwise fully)
ON (indicator should light) when taking measurement only /
OFF otherwise
ON when taking measurement only / OFF otherwise
ON when taking measurement only / OFF otherwise
ON when taking measurement only / OFF otherwise
Maximum
Maximum (-60/-34 dBu)
OFF
CENTER
Maximum
OFF (POST)
L (turned counterclockwise fully)
ON (indicator should light) when taking measurement only /
OFF otherwise
ON when taking measurement only / OFF otherwise
MG206C-USB/MG206C
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