Troubleshooting - Yamaha Ro8-D Owner's Manual

Troubleshooting

Troubleshooting
Symptom
The power won't turn on.
The power indicator doesn't light.
The unit is not receiving an input sig-
nal.
The input level is too low.
No sound is heard.
The head amp cannot be controlled.
Adjusting the internal head amp gain
does not change the audio level.
Adjustment of the [UNIT ID] rotary
switch or DIP switch settings seems to
be ineffective.
Cause
The power cable is connected improperly.
The [POWER] switch is not turned ON.
The input cables are not connected properly.
No signal is output from external devices.
The internal head amplifier gain is not set to an
appropriate level.
The DIP switches are set to REFRESH, but the
Ri8-D-native device has not started up.
A condenser microphone is connected.
The internal head amplifier gain is not set to an
appropriate level.
The cables are not connected properly.
The DIP switches are set to REFRESH, but the
Ro8-D-native device has not started up.
Output is muted.
The Ri8-D has not been mounted on the RACK
of the Ri8-D-native device.
The Gain Compensation function is turned on.
You may have adjusted the setting while the
power is ON.
Possible Solution
Connect the power cable properly (see
page 13).
Turn the [POWER] switch ON. If the power still
will not come on, refer the problem to your
Yamaha dealer.
Connect the cables properly.
Output a signal from the source device and
make sure that the SIG indicators on the appro-
priate channels will light.
Set the internal head amplifier gain to an appro-
priate level.
Start the Ri8-D-native device to send the setting
to the Ri8-D.
Turn the [+48V MASTER] switch ON.
Turn phantom power for the corresponding
channel(s) ON from the Ri8-D-native device.
Set the internal head amplifier gain to an appro-
priate level.
Connect the cables properly.
Start the Ro8-D-native device to send the set-
ting to the Ro8-D.
Unmute the output on the Ro8-D-native device.
Mount the Ri8-D on the RACK of the
Ri8-D-native device.
If you are not using the Gain Compensation
function, turn it off.
Turn the power OFF, then change the setting.
Owner's Manual
Troubleshooting
17