18
10.0 Troubleshooting
Checklist
Problem: No output
Check: Are the AC Present and Operate lights on?
Are the Fault & Temp lights off?
Are the Signal lights on?
Are the level controls turned up?
Are the speakers properly connected? (in particular check that older style ‘ring lock’ type
Speakons are rotated in the socket).
Problem: Distorted sound
Check: Are the Clip lights on?
Is any equipment before the amp being over driven?
Are any speaker cables shorted?
Are the loudspeakers too low an impedance?
Are the input cables wired correctly?
Problem: Hum or buzzing
Check: Is the amp properly grounded?
Are the input cables shielded?
Are the input connectors properly wired?
Are you using an unbalanced input?
Does the noise stop if the equipment driving the amp is switched off?
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