Clever Acoustics CRAM33 User Manual Download Page 9

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MA 4120 480W Mixer Amplifier

  

User Manual

9

Operating instructions

MIC priority: 

During normal operation the MA 4120 MKII features priority for MIC1 over the other microphone and 
line inputs. For certain applications, the installation engineer may need to defeat the MIC1 priority 
function. In order to do this, the product must be fully disconnected from any AC or DC power sources, 
and disconnected from all inputs/outputs. 
Remove the 15 screws from the outer casing as per the diagram below and keep in a safe location. 
Remove the upper casing and place to one side. Locate the PCB towards the rear of the unit as pictured 
below. Carefully move the jumper from the 

"ON"

 position to the 

"OFF"

 position. Refit the outer casing, 

taking care to avoid damaging the unit. Refit all of the screws to fully secure the outer casing.

Top of Mixer

Rear of Mixer

Side 1 of 

Mixer

Side 2 of 

Mixer

Summary of Contents for CRAM33

Page 1: ...9 10 VOLUME MONITOR 0 1 2 3 4 5 6 7 8 9 10 ON OFF POWER 0 1 2 3 4 5 6 7 8 9 10 CH4 CH2 CH1 CH3 L R CH5 LINE POWER INPUT 110 240V 50 60Hz 110 120V 60Hz FUSE T12A 250V 220 240V 50 60Hz FUSE T6 3A 250V...

Page 2: ...ative labels from the unit Do not open the equipment and do not modify the unit Do not switch the equipment on and off in short intervals as this will reduce the system s life Only use the equipment i...

Page 3: ...Z1 VOL BASS MUTE TREBLE GAIN Z3 Z2 Z4 CH 3 0 1 2 3 4 5 6 7 8 9 10 10 10 10 10 10 10 Z1 VOL BASS MUTE TREBLE GAIN Z3 Z2 Z4 CH 4 0 1 2 3 4 5 6 7 8 9 10 10 10 10 10 10 10 Z1 VOL BASS MUTE TREBLE GAIN Z3...

Page 4: ...PARTS INSIDE MONITOR LINE OUTPUT G MONITOR 1W 8 PRIORITY TEL PAGING COM GND HOT 110 120V 220 240V PHANTOM LINE MIC PHANTOM LINE MIC PHANTOM LINE MIC PHANTOM LINE MIC TEL VOLUME ZONE LINE OUT BAL UNBA...

Page 5: ...output 4 Mute switch Press the mute switch to mute silence the selected input channel 5 Mute LED The mute LED provides a visual indication when the input channel is in mute status 6 Input channel leve...

Page 6: ...ones to the monitor headphone outputs press the Monitor selection button The monitor output volume can then be adjusted using the Monitor Volume Control 14 Power LED The Power LED will illuminate to i...

Page 7: ...Mute function 23 Telephone paging input TEL For emergency paging the MA 4120 MKII is equipped with a balanced audio TEL input activated automatically upon the MA 4120 MKII detecting an audio signal p...

Page 8: ...V 100V Do not use more than one pair of output terminals on any one output zone Care should be taken when connecting to the outputs to ensure the load impedance is above the minimum load specified for...

Page 9: ...st be fully disconnected from any AC or DC power sources and disconnected from all inputs outputs Remove the 15 screws from the outer casing as per the diagram below and keep in a safe location Remove...

Page 10: ...20 480W Mixer Amplifier User Manual 10 Typical panel connections Mains Recorder PA Amplifier Recorder CD Player AM FM Tuner Desktop Mic Microphone Monitor Speaker Amplifier Contact Voice Priority Horn...

Page 11: ...will mostly be absorbed if the cables are unnecessarily long Besides that a longer cable may lead to humming and noise problems If the cable runs are unavoidable you should use balanced cables Outputs...

Page 12: ...revent possible harm to the environment or human health from uncontrolled waste disposal please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of...

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