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12

 

 

VERY 

IMPORTANT! 

 

 
WARNING! 
 
After switching the unit off please wait 60 seconds before switching it on again. 
 

 
 

6  Looking after your amplifier 

 
This unit from ACCUSTIC ARTS

® 

does not require special treatment in excess of the usual care taken with high 

quality devices. Clean the housing with a dry or slightly moistened cloth. Please do not use any aggressive 
detergents or detergents which contain silicon.  
 
The best way to clean the chromed front plate is with a mild non-aggressive fat-dissolving detergent (e.g. glass 
cleaner). Use a very soft clean cloth and wipe the front plate with this without exerting strong pressure. 

Never

 use 

abrasive agents or polishing agents with abrasive particles. 

 
 

VERY 

IMPORTANT! 

 

 
CAUTION ! DANGER OF FIRE ! 
 
Never place the unit in direct sunshine and avoid extreme changes in temperature

 

 
 

7  Troubleshooting 

 
Malfunctions are mostly caused by something simple which can be put right quickly. 
In the next section some possible malfunctions are described together with their corrective action. However, if it is 
not possible to remove the malfunction please contact your authorized dealer. 
 

Malfunction 

The unit is switched on, the blue LED is illuminated but you hear no music. 

 

Cause 1   

The interconnect or speaker cables are not properly connected. 

Solution  

Switch off all units and check all connections 

 
Cause 2   

MUTE switch is activated. 

Solution 

Turn on the MUTE switch (see chapter 

4. 3

). 

 
 

Malfunction 

The left or right LEDs do not go out approx. 5 seconds after switching on the unit or light up 
during operation. 
 

Cause 1   

Clipping due to overload of the power amplifier. 

Solution  

Lower the volume on your control device (e.g. preamplifier). 

 
Cause 2   

Overheating of the unit. 

Solution 

Switch off the unit for approx. 30 minutes and then make sure that the unit has adequate 
cooling. 

 
Cause 3   

Short circuit at speaker outlet. 

Solution 

Check the loudspeaker terminals and correct it if necessary 

 
 

Malfunction 

Crackling or humming in the loudspeaker. 

 
Cause   

Contact problems on the input sockets or on the loudspeaker terminals. 

Solution 

Switch off the unit and check the contact on the input sockets and on the loudspeaker terminals. 

 
 

Summary of Contents for MONO III MK2

Page 1: ...les and correct phase for the loudspeakers 4 5 Connection to mains power 4 6 Replacing damaged mains fuses 5 Start up ____ Page 10 5 1 Description of function 5 2 Operating instructions 6 Looking afte...

Page 2: ...ppliance Protect the mains cable from being walked on or pinched particularly at plugs and the point where they exit from the appliance From time to time check the mains cable and the appliance for da...

Page 3: ...ntion to a procedure practice condition or the like that if not correctly performed or adhered to could result in a damage or destruction to part or the entire component To guarantee a reliable functi...

Page 4: ...ht side Due to these facts and due to its high weight the power amplifier is usually set up in a position near to the floor either between or near the loudspeakers If you cannot set up the power ampli...

Page 5: ...RCA input socket for the preamplifier output signal 6 1 SPEAKERS RIGHT Right loudspeaker output socket pair A 6 2 SPEAKERS RIGHT Right loudspeaker output socket pair B 6 3 Ground contact for shielded...

Page 6: ...of the balanced input XLR Pin 1 Ground shield Pin 2 Non inverting hot 0 Pin 3 Inverting cold 180 These pin assignments comply with the standard adopted by the Audio Engineering Society Refer to the op...

Page 7: ...ery positive effect on important technical parameters e g on distortion characteristics At 5 kHz the damping factor of a power amplifier is relatively linear and has a high value but then for physical...

Page 8: ...each channel the power amplifier has 2 pairs of WBT loudspeaker terminals labelled A and B With this arrangement you can wire your loudspeaker system in a BI WIRING mode If you want to control your l...

Page 9: ...e read chapter 5 2 4 6 Replacing damaged mains fuses Replace fuses only with original types having the same ampere value the same voltage endurance and the same time lag Never use fuses with other amp...

Page 10: ...ns switch 13 all three LEDs will turn on After approx 5 seconds the two red ones will extinguish while the blue LED stays on showing that the unit is running 5 2 Operating instructions Switching on Al...

Page 11: ...cribed together with their corrective action However if it is not possible to remove the malfunction please contact your authorized dealer Malfunction The unit is switched on the blue LED is illuminat...

Page 12: ...e appr 120 watts Loading and screening capacity 110 000 F Zero signal current setting 300 mA Protection circuits clipping HF oscillations and too high DC offset Dimensions H x W x D 350 x 482 x 430 mm...

Page 13: ...ce center responsible for your country For information contact your dealer or distributor in your country In any case please use the original packaging for return transport to the dealer or service ce...

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