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OWI User Manual: Model AMP1SGRN Speaker Amplifier with Priority Audio Override
The RS232/RJ45 connections are shown on Page 17
NOTE: RS232 Operation is detailed on pages 18
MAINTENANCE
The primary preventative maintenance is to make sure that that the power supply and unit are
powered and that all connections are secure.
TROUBLE SHOOTING GUIDE
No Audio
Look at the Control Indicator LED for at least 15 seconds, if it doesn't light at all there may be a
power failure. Check circuit breakers. Check to see that the unit's DC power supply is plugged
in to the AC power. Check to see that the power supply's DC connector plug is secured onto
the wire and then check to see that it is plugged into the unit's DC input connector.
You Have Power but No Audio
>Check for disconnected speakers or open voice coil.
>If the LED is briefly flashing every few seconds, the unit is in sleep mode because no audio is
being sensed at either Normal input, Auxiliary input or the Priority input.
>Initiate self test. If the LED blinks red, check the cables running to the speaker(s).
>If the LED is blinking red every second, it is recovering from a Priority Override. When it times
out, and there is non-priority, audio, you should hear audio. If still no audio, the non-priority
audio may be silent, but the LED should be green, awaiting the resumption of audio.
You want to verify unit start-up and possibly the firmware revision number.
Interrupt the AC or DC power, wait 10 seconds, then turn the power back on again, and then
look at the Control indicator LED. You should see one of the following the sequence:
Version No.:
Firmware Version Number, First Digit................ Green flash
Firmware Version Number, Decimal Point.......... 1 second pause no LED on.
Firmware Version Number, Second Digit ... .........Red flash
Pause
Steady Green
The unit then should be operational.
End of Manual Text
OWI Model AMP1SGRN Manual Page 27 of 28
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