Rear Panel - Yamaha MMP1 Getting Started

2. Names and Functions
7 P[MAIN] power switch and indicator
Turns the AC power of the unit to on (O) or sets it to
standby (N). When the AC power unit is turned on, the
indicator lights up.
When both the P [MAIN] power switch and P [BACKUP]
power switch are on (O), only AC power is supplied to the
unit.
NOTICE
Even when the power switch is in the standby position (N), a
small amount of current is flowing through the unit. When
you are not using the unit for a long time, make sure to
unplug the power cord from the AC outlet.
NOTE
Setting the unit to on and standby in rapid succession can cause
it to malfunction. After setting the unit to standby, wait for at least
6 seconds before turning it on again.

2-2. Rear panel

9
9 AC power input socket
For connecting the supplied AC power cord. First,
connect the AC power cord to this unit, and then insert the
power cord plug into an appropriate AC outlet.
Make sure to insert the cord plugs all the way until they
lock in place securely. The supplied AC power cord
features a V-lock mechanism with a latch, which prevents
the power cord from being accidentally disconnected.
CAUTION
Be sure to set to standby
the power of the unit
before connecting or
disconnecting the power cord. To
disconnect the power cord, hold
down the latch on the plug while
removing it.
) [BACKUP DC INPUT] connector
For connecting the external DC power unit (+12 V, 45 W)
for backup of AC power supply. The connector type is
XLR-4-32. Refer to "Specifications" for pin assignments.
Even when the P [BACKUP] power switch is in the
standby position, standby current is discharged. For
this reason, Yamaha does not guarantee the use of
batteries.
CAUTION
Before connecting or disconnecting the external
power supply, you must set to standby the power
of this unit and the power of the external power
supply. Malfunctions or electrical shock may occur if you fail
to observe this caution.
10 MMP1 Getting Started
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8 Vent
This unit is equipped with cooling fans. These vents let
warm air out from the unit. Please make sure that you do
not block the vents with any object.
^ &
NOTICE
When connecting an external DC power supply, please make
sure that it has a sufficient power supply rating. If it has an
insufficient power supply rating, the inrush current when the
unit is turned on may lead to unstable operation or cause a
malfunction. In order to prevent malfunction due to the inrush
current when the unit is turned on, please turn on the unit via
the P [MAIN] power switch, rather than the P [BACKUP]
power switch.
NOTE
•
AC power is supplied to the unit when both the P [MAIN] and
P [BACKUP] power switches are turned on.
•
When both power supplies are turned on, it automatically
switches to the external DC power supply if a malfunction
causes the AC power supply to be interrupted.
! [UNIT ID] rotary switch
Determines the ID that identifies this device on the Dante
network. If there are multiple Dante-compatible devices
from Yamaha that require an ID setting connected to the
same network, set a different ID for each device.
NOTE
The ID setting while the power-on will be applied the next time
you turn the power on.
@ DIP switches
Used to change settings on the unit. Refer to the sections
"Before connecting" on page 12 and "Restoring factory
settings" on page 15.
NOTE
The setting while the power is on will be applied the next time you
turn the power on.
Vents
*