User Manual

RPio622 Owner’s Manual
16
Connecting the AC Power
Cord
1. Turn off both power switches A and B on the
unit.
2. Connect one of the supplied power cords to
AC IN connector (A), and the other to AC IN
connector (B).
3. Connect the other end of each power cord to
an AC outlet of a different power source.
NOTE
• To disconnect the power cords, remove the cables in the
order of steps 1➝3➝2 in the procedure described
above.
• To disconnect the power
cord, remove it while
pressing the latch on the
plug.
WARNING
• Use only the supplied AC power cords. Using other cables
may lead to overheating or electric shock.
Caution
• Be sure to turn off the power to the unit before connecting or
disconnecting the power cords.
• Even when the power switch is turned off, a small amount of
current is flowing through the unit. If you plan not to use the
unit for a long period of time, be sure to remove the power
cords from the AC outlets.
Turning the Power On and
Off
When you turn on the power to the unit, be sure to turn
on the power to the power amplifier last
to avoid speaker
damage. Before you turn off the power to the unit, first
turn off the power to the power amplifier.
NOTE
To maintain power supply redundancy, turn both power supply
units A and B ON or OFF together. If only one power supply unit
is ON, the LCD will display an error message and the color
indicator will light up yellow.
Please visit the Yamaha Pro Audio website for an FAQ list
(Frequently Asked Questions).
http://www.yamahaproaudio.com/
No audio input is present.
❍ Make sure that the cables are connected properly.
❍ Confirm that the SIG indicator for the input connector
on the RY card is lit steadily.
❍ If a phantom-powered microphone is connected, make
sure that the [+48V MASTER] switch and channel’s
phantom power are set to on.
❍ Confirm that the input port is patched to the proper
input channel.
❍ If you are using an optional I/O card, make sure that it
is installed properly.
❍ Make sure that the TWINLANe network card is
installed in SLOT 1.
The input level is too low.
❍ If a condenser microphone is being connected, make
sure that phantom power for the corresponding
channel is not turned OFF.
Indicators or LCD on the front panel are too dark
or too bright.
❍ You can adjust brightness using the setting parameter
accessed via the [MENU] key.
Restoring the Factory
Programmed Settings
Follow the steps below to initialize the internal memory of
the unit to the factory programmed settings.
1. While the unit’s power is on, press the
[MENU] key on the front panel.
2. Use the [U]/[D] keys to select “Initialz.”
3. Press the [ENTER] key.
4. Press and hold the
[ENTER] key for two
seconds or longer.
The internal memory is
initialized and the unit
automatically restarts. After the unit restarts, the
initialization process is complete.
To cancel the initialization process, press the
[MENU], [U] or [D] key, instead of pressing the
[ENTER] key.
Power Supply Troubleshooting
Press&Hold
[ENTER] to
initialize