No audio from any channel.
No audio from one or more
channels.
No audio from one channel
or one zone only.
Hum or buzzing sound is
heard.
Amplifier will not turn on.
•Power cable to the amplifier is incorrectly connected or plugged into an outlet that
does not have power. Check connections and verify power on the outlet.
•Audio cable to the source component is not connected properly, connected to
incorrect BUS input or the cable is defective. Check connections or replace cable
with one that has been verified as good.
•The Input Selection switches are set incorrectly. Refer to instructions for correct
settings.
•Audio cable to the source component is not connected properly or the cable is
defective. Check connections or replace cable with one that has been verified as
good.
•The Input Selection switch is positioned incorrectly. Refer to installation instructions
for proper settings.
•The Bridging switch is positioned incorrectly. Refer to installation instructions for
proper settings.
•Check the connections of the speaker wire at both the speaker and amplifier.
•Check the front panel LED for the zone that is not working. If it is red, you either
have a short on one of the speaker wires for that zone or a thermal issue. Check
wires and speaker connections for shorts or allow amplifier to cool.
•The level adjustment on the channel is turned down. Turn it to the right slowly to
raise the volume.
•Test the bad channel by connecting it to a speaker that you know works.
•Audio cable to the source component is not connected properly or the cable is
defective. Check connections or replace cable with one that has been verified as
good.
•The Input Selection switch is positioned incorrectly. Refer to installation instructions
for proper settings.
•The Bridging switch is positioned incorrectly. Refer to installation instructions for
proper settings.
•Check the connections of the speaker wire at both the speaker and amplifier.
•Check RCA input cables by removing them one at time (powering down the amplifier
before disconnecting) and checking to see if a connection or cable is to blame.
•The amplifier must be plugged into a live outlet.
•The power switch on the front panel must be on.
•The Power Mode switch may be set to the wrong mode for your system.
11
TROUBLESHOOTING
