11
inputs, then connect the 14/4 speaker wire from the
kitchen speakers into the Speaker Block Connector
With the source volume turned down to a low,
Follow the steps in the chapter entitled, ‘Protecting
Recommended Troubleshooting Tools
•
•
•
• A short run of 14/2 or 14/4 speaker wire to connect the
•
• Optional multimeter to read short circuits, open
circuits and to take speaker resistance and continuity
The measurement will be across the two-conductor
working with a four-conductor wire, then test one set of
PLEASE NOTE: A SPEAKER WITH A SWITCHABLE HIGH-
PASS FILTER IN THE CROSSOVER, SUCH AS AN AS38R/S
OR VP38R/S, WILL NEED TO HAVE THE SWITCH IN THE
OFF POSITION TO TAKE A DCR READING. OTHERWISE, THE
CAPACITOR IN THE HIGH PASS FILTER WILL BLOCK THE DC
SENT FROM THE METER AND THE LOAD WILL SHOW ‘OPEN’.
REMEMBER TO SET THE HIGH PASS FILTER SWITCH BACK TO
ON AFTER TAKING THE DCR READING.
Disconnect the speaker wires from the Speaker
Set multimeter to measure DC, apply the meter
probes across the two-conductor speaker wire for
If the meter reads ‘INFINITE
is open (cut) somewhere between the amp and the
speaker, the speaker is not physically connected
to both wires or the speaker has become severely
compromised (open/blown voice coil from excessive
If the DC measurement is zero or close to zero, then
the circuit (wire and speaker) has become shorted
across the speaker wires or the speakers have been
severely damaged by excessive power or over-
If the DC measurement is between 6-8 Ohms (for a
single 8 Ohm speaker), then the circuit has continuity
A speaker from the zone can also be tested directly
Potential Reasons
•
• The AC outlet is connected to is not active or its
GFCI circuit has been tripped (Ground Fault Circuit
• The power switch on the rear panel is set to the
The 16-50 and 8-50 are shipped with the Power Sense
a live AC outlet and the rear panel power switch is
Steps to Resolve
illuminate:
Ensure the detachable AC cord connector is fully
appliance such as a lamp into the same AC outlet as
be reset or the outlet otherwise evaluated for proper
Remove the amp and take it to another location in
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