PMA AMPLIFIER SERIES
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REMEDY:
Inspect the PROGRAM LED on the amp rear panel for the channel in question to determine if
a valid speaker program is loaded into the DSP for the channel in question. If a valid speaker
program is loaded, the PROGRAM LED will be illuminated. This LED will be off, otherwise.
Alternatively, you can inspect the software GUI (when connected to the PMA amp), or the
front panel display to determine the name of the speaker program installed into the DSP on
the channel in question. If it is the “NONE” program, change it to the desired program.
CAUSE 4 : THE CHANNEL IS ROUTED TO A DIFFERENT SOURCE, OR TO THE INTERNAL PINK NOISE
GENERATOR
It’s possible that he channel in question is routed to the incorrect input or to the internal
noise generator.
REMEDY:
Connect to the amp with PMA Manager or inspect the front panel display to determine to
what source the channel is routed. If it is routed, or “listening to”, the wrong source, use PMA
Manager to change the routing to the correct source.
Connect PMA Manager to the amp and establish a connection. Left-click the drop-down list
control under the SOURCE heading for the channel in question. A list of available sources will
appear. Left-click on the desired source name to load it into the DSP. Then, left-click the full-
width UPDATE AMPLIFIER MEMORY button to store the settings in the non-volatile on-board
memory.
PROBLEM :
AMP IS IN PROTECT MODE
CAUSE : A FAULT HAS OCCURRED INSIDE OR OUTSIDE THE AMPLIFIER
The amp will enter PROTECT MODE when one of following conditions exists: there is an over-
current fault caused by a very low impedance or short at the amplifier outputs; an amplifier
power module has overheated to due extended high output use or unusually high ambient
temperature; or, a internal amplifier component has failed.
REMEDY:
Disconnect the loudspeaker wires from the binding posts one at a time and observe the
STANDBY/PROTECT LED. If the LED goes off after disconnecting a wire, it is likely that the
wire has a short in it or is connected to a shorted loudspeaker. Correct the short and recon-
nect.
If no shorts are discovered and if after disconnecting all speaker wires from the amp, the
PROTECT status persists, an over temperature condition or a fault within the amplifier has oc-
curred.
To determine PROTECT mode was brought on by over temperature, with all wires disconnect-
ed, turn the main power switch off and leave the amp off for ten to twenty minutes to allow
the amplifier to reach ambient temperature. Then power the amp on and observe the PRO-
TROUBLESHOOTING
