User Manual

16.7. Alert list
The alerts generated by PC-series units, and their significance and the appropriate actions, are listed below.
A single alert is shown when the event occurs. A continuing alert is shown when the event occurs and when it
ends.
If the problem is not solved, please contact a Yamaha service center listed at the end of the device’s operating
manual.
Nu
mbe
r
Message Severity Content Action Single/Co
ntinuing
05 Amplifier Output Muting Error The protection function
operated to mute the amp
output.
Take action to clear the
protection function that
was the cause.
The cause is indicated by
another alert that is shown
at the same time.
Continuin
g
12 Mains Voltage Over 276[V] Error (at startup) The amp
cannot start up because
the power supply voltage
exceeded the allowable
operating voltage.
Connect a stable power
supply that is within the
power supply
requirements.
Single
The amp stopped because
the power supply voltage
exceeded the allowable
operating voltage.
Continuin
g
13 Power Supply Output
Voltage
Fault (at startup) The amp
cannot start up because
there is an abnormality in
the output voltage of the
power supply circuit.
It might be that the unit
has malfunctioned.
Contact a Yamaha service
center.
Single
The amp was stopped
because an abnormality
occurred in the output
voltage of the power
supply circuit.
Continuin
g
14 Power Supply Over-
temperature
Error (at startup) The amp
cannot start up because
the power supply circuit is
too hot.
- Lower the temperature
before use.
- Clean the air intake.
- Lower the room
temperature.
Single
The amp was stopped
because the power supply
circuit became abnormally
hot.
Continuin
g
16. Power Amplifiers : PC-series
ProVisionaire Design User Guide | 257