Yamaha MX200-24 Owner's Manual - Page 9

Rear panel - channel mixer

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8 AUX SEND (1, 2, 3, 4) These are unbalanced jacks with a nominal output and impedance of +4dB/600Ω. (AUX 1 and 2 are pre-fader, and AUX 3 and 4 are post-fader.) 9 AUX RETURN (1L/MONO, 1R, 2L/MONO, 2R) These are unbalanced jacks with a nominal input level and impedance of +4dB/10 kΩ. These jacks are usually used to receive the audio returned from an effect unit such as reverb or delay, but they can also be used as supplementary inputs. If a plug is inserted only in L/MONO, the same signal will be sent to both the L and R buses. Rear panel POWER ON OFF PHANTOM ON OFF 12 1 POWER switch This switch turns on the power of the mixer. When turning off the power of audio equipment, it is important to start with the device closest to the speakers. (Normally, this will be the power amp.) 2 PHANTOM switch This switch turns on/off the phantom power supply for all channels. Use this switch when you are using condenser microphones. When this switch is turned on, DC +48V will be supplied to pins 2 and 3 of each INPUT A XLR connector. If you do not need phantom power, be sure to leave this turned off. * It is safe to connect balanced dynamic microphones or line level devices even if this switch is left on, but connecting unbalanced devices or devices whose transformers are center-grounded will cause hum or malfunctions. 7

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7
8
AUX SEND (1, 2, 3, 4)
These are unbalanced jacks with a nominal output and im-
pedance of +4dB/600
Ω
. (AUX 1 and 2 are pre-fader, and
AUX 3 and 4 are post-fader.)
9
AUX RETURN (1L/MONO, 1R, 2L/MONO, 2R)
These are unbalanced jacks with a nominal input level and
impedance of +4dB/10 k
Ω
.
These jacks are usually used to receive the audio returned
from an effect unit such as reverb or delay, but they can
also be used as supplementary inputs.
If a plug is inserted only in L/MONO, the same signal will
be sent to both the L and R buses.
Rear panel
1
2
POWER
ON
OFF
PHANTOM
OFF
ON
1
POWER switch
This switch turns on the power of the mixer.
When turning off the power of audio equipment, it is im-
portant to start with the device closest to the speakers.
(Normally, this will be the power amp.)
2
PHANTOM switch
This switch turns on/off the phantom power supply for all
channels.
Use
this
switch
when
you
are
using
condenser
microphones.
When this switch is turned on, DC +48V will be supplied
to pins 2 and 3 of each INPUT A XLR connector.
If you do not need phantom power, be sure to leave this
turned off.
*
It is safe to connect balanced dynamic microphones or
line level devices even if this switch is left on, but con-
necting unbalanced devices or devices whose trans-
formers are center-grounded will cause hum or
malfunctions.