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Redback® Proudly Made In Australia
22
3.0 TROUBLE SHOOTING
If the REDBACK Phase 4 amplifier fails to deliver the rated performance, check the following:
No Power, No Lights
Make sure amplifier power switch is on. Make sure mains power switch is on at the wall. Check the mains and DC fuse.
Replace with only the correct type and rating. Over rated fuses with invalidate warranty.
Distorted Output
Check that the speaker type is correct for the output that you are using (ie. 4-16O, 70V or 100V line). Check for any short
circuits on the speaker line.
Very Low Output Volume
Make sure that the input is the correct level (check for shorted connectors). Check for any short circuits on the speaker
line.
Check input DIP switches are set correctly.
Check if signal LED on the front panel is lit to indicate there is signal. If it is not lit there is no signal present.
Continually Blows Fuses
Make sure that the speaker line is not shorted. Check speaker types, ratings and if on correct output.
Amplifier Keeps on Cutting In & Out
Make sure that there is adequate ventilation around the amplifier. Check the vent slots on the front,top and sides are not
covered or blocked and the fan on the rear is functioning correctly. Check also speaker types, ratings and for any short
circuits on the speaker line.
No Output Volume
Check the Send/Return link is in place. Ensure the input selector dip switch is configured correctly for each corresponding
input.
Ensure remote volume terminals are linked when no remote volume potentiometer is connected.
When connected, check remote volume control is not turned down.
No Switched 24V DC
Check output switch for correct setting.
Check fuse located on rear PCB is not blown (located inside the unit). see section 2.6 for details.
Troubleshooting
