Crown 1160ma User Guide

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The mixer-amplifier’s Power switch is off.

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The mixer-amplifier is not plugged into the 

power receptacle.

•

The mixer-amplifier’s high-voltage power sup-

ply circuit breaker has tripped, or the fuse has 
opened on 220/230/240V models. Verify that 
the AC mains voltage is correct, then press the 
Reset button on the back panel.

•

If the unit is operated from a 24V DC supply, 

the internal fuse may have opened. (The power 
switch has no effect on 24V operation.)

•

Input signal level is too high. Turn down your 

input volume controls. NOTE: Your mixer- 
amplifier should never be operated at a level 
which causes the Clip LEDS to illuminate con-
stantly.

•

Master volume level is too high. Turn it down 

to about 3/4 of maximum level.

•

The amplifier is in “fault” mode. A Fault status 

can be triggered when one of the amplifier’s 
protection circuits is activated. First disconnect 
your speakers from the affected channel(s) one 
by one to determine if one of the loads is 
shorted. If an amplifier channel has a thermal 
fault, there will be no indication on the front 
panel, but the amp will recover after cooling. If 
operation does not return to normal after 
restarting your amp, check the fuse and replace 
if necessary, or return mixer-amp to Crown or 
an authorized Crown Service Center for servic-
ing.

•

No input signal.

•

Input signal level is very low.