Yamaha MW12, Руководство по обслуживанию

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MW12
■
INSPECTIONS
1. Scope
This inspection specification is applied to the mixer MW12.
2. Power Supply
The voltage is within
±
10%.
AC Adaptor shall be used.
3. Inspections
3.1 Preparation
* Application software of USB AUDIO
Use the software that can be set as follows.
(Cubase LE, TWE, etc. Refer to page 33 for the example in the Cubase LE Windows version.)
Sampling rate----48KHz or 44.1KHz
Resolution --------16 bits
* Unless otherwise specified, the input signal should be sine wave at 1kHz. The source impedance should be
150 ohms.
* The load resistance for each output terminals are as follows,
PHONES (L/ R) : 40 ohms (3W or more)
ST OUT : 600 ohms
Others : 10 k ohms
Unless otherwise specified, the operation elements shall be set as follows,
●
CH INPUT (1-4)
GAIN control : MAX (-60/-34dBu)
switch : OFF
HI,MID,LO EQ Gain control : CENTER
AUX1,AUX2 level control : MAX
AUX1 PRE switch : OFF (POST)
PAN control : L (turned counterclockwise fully)
ON switch : ON (LED shall light) when taking measurement only/ OFF otherwise
PFL switch : ON (LED shall light) when taking measurement only/ OFF otherwise
1-2 switch : ON when taking measurement only/ OFF otherwise
Fader : MAX
●
ST CH (5/6,7/8)
GAIN control : MIC:MAX (-60/-34dBu)
switch : OFF
HI,MID,LO EQ Gain control : CENTER
AUX1,AUX2 level control : MAX
AUX1 PRE switch : OFF (POST)
PAN/BAL control : L (turned counterclockwise fully)
ON switch : ON (LED shall light) when taking measurement only/ OFF otherwise
PFL switch : ON (LED shall light) when taking measurement only/ OFF otherwise
1-2 switch : ON when taking measurement only/ OFF otherwise
Fader : MAX
Destination Voltage AC Adaptor
J 100V WC704000
U 120V WC704100
O 220V WC711100
K 220V WC704400
B 230V WC704300
H 230V WC704200
A 240V WC704500