Operation Manual; 6 Troubleshooting; CTs Multi-Channel - Page 17

page 17

CTs Multi-Channel 

Power Amplifiers

Operation Manual

CONDITION: Power indicator is off

.

POSSIBLE REASON

•

The amplifier has lost AC power.

•

The amplifier’s Power switch is off.

•

The amplifier is not plugged into the 

power receptacle.

•

The amplifier output level is so high that 

the power supply fuse has blown. Verify 
that input levels and output impedances 
are within safe ranges. Refer the unit to 
an authorized Crown service center for 
fuse replacement.

CONDITION: Power indicator is
flashing

.

POSSIBLE REASON:

•

The AC line voltage has dropped below 

10% or has risen above 10% of the
nominal line voltage of the power supply.

Refer to section 5.1.6 for specific voltage 
requirements.

CONDITION: Fault indicator is on.

POSSIBLE REASON:

•

The amplifier channel has stopped oper-

ating. Return the unit to an authorized 
Crown Service Center.

CONDITION: Distorted sound

.

POSSIBLE REASON:

•

 Load is wired incorrectly or Dual/Bridge 

mode switch is set incorrectly. Check 
both.

•

Input is overloaded by a signal level that 

is too high. Turn down your amplifier 
level controls, or turn down the input sig-
nal, until the clip light goes out.

•

Thermal Level Control (TLC) is active.

Note: If the signal sounds distorted even 
though the Clip LED is off, the input signal is 
distorted. Check gain staging and output lev-
els of the mixer or preamp. 

6 Troubleshooting