AUSTRALIAN MONITOR AMIS250 Series Operating Manual Download Page 6

Notes:

The DC fuse is located on the circuit board. This is a feature of the AMIS series amplifier,
which is equipped with a current limiting circuit preventing excessive DC current, thus
eliminating the risk of blowing high tensions fuses.  In the unlikely event that the DC fuse

actuates, the output transistors should be checked, as it is probable that the amplifier has been subjected to
very extreme conditions.

Important Safety Information

1. 

Save the carton and packing material even if the equipment has arrived in good condition. 

Should

you ever need to ship the unit, use only the original factory packing.

2.

 Read all documentation before operating your equipment. 

Retain all documentation for future

reference.

3. 

Follow all instructions 

printed on unit chassis for proper operation.

4. 

Do not spill water or other liquids into or on the unit, 

or operate the unit while standing in liquid.

5. 

Make sure power outlets conform to the power requirements 

listed on the back of the unit.

6. 

Do not use the unit if the electrical power cord is frayed or broken. 

The power supply cords should

be routed so that they are not likely to be walked on or pinched by items placed upon or against them,
paying particular attention to cords and plugs, convenience receptacles, and the point where they exit from
the appliance.

7. 

Always operate the unit with the AC ground wire connected 

to the electrical system ground.

Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.

8. 

Mains voltage must be correct and the same as that printed on the rear of the unit. 

Damage caused

by connection to improper AC voltage is not covered by any warranty.

9. 

Have gain controls on amplifiers turned down during power-up 

to prevent speaker damage if there

are high signal levels at the inputs.

10. 

Power down & disconnect units from mains voltage before making connections.

11. 

Never hold a power switch in the “ON” position if it won’t stay there itself!

Summary of Contents for AMIS250 Series

Page 1: ...or rack mounted rack mount kit supplied The AMIS250 delivers 250 watts into a load of 4 ohms 25 or 70 volt line As standard the AMIS250 is supplied self standing with rubber feet It features 6 microphone line input channels as well as a host of unique features including multiple levels of muting a VOX relay output Transformer Balanced 600 Ohm Telephone input 24 VDC operation and VCA master level c...

Page 2: ...direction will provide up to 9 dB of treble cut 10 kHz Master Output Control The Master level pot controls the overall output level of the amplifier depending on the levels set for the individual input channels as detailed above Start with the control set to level 0 and turn clockwise until the desired output level of the amplifier is reached Power Switch This switch controls the switching of AC p...

Page 3: ...ut Terminal Strip The screw terminals on the left hand side of the strip allow access to the direct speaker outputs of the amplifier The screw terminals on the right hand side are for activation of the in built 4 tone generator Reading from left to right the terminals are Low Impedance Common use with 4 ohms 4 Ohms Spare Constant Voltage Common use with 25v or 70v 25 Volt Line 70 Volt Line Spare T...

Page 4: ...connections are for inputs 6 5 4 3 2 1 respectively Other Features Tone Generator Four separate tones are available from the in built tone generator board All four tones can be activated individually via a contact closure connected to the screw terminals on the rear of the amplifier To activate the bell chime for example just run a pair of wires from the Tone generator common and the Bell terminal...

Page 5: ...ion of the AMIS250 The tape output remains unprocessed VCA Control An external pot 500K can be connected to the AMIS250 for remote control of the master level The external pot is governed by the master level of the amplifier allowing the installer to set the volume then lock the amplifier in a rack leaving the user with just a master volume control that cannot go beyond the level set on the master...

Page 6: ... in liquid 5 Make sure power outlets conform to the power requirements listed on the back of the unit 6 Do not use the unit if the electrical power cord is frayed or broken The power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords and plugs convenience receptacles and the point where they...

Page 7: ...arallel or series connect an amplifier output with any other amplifier output Australian Monitor Audio Inc is not responsible for damage to loudspeakers for any reason 18 Do not ground any red hot terminal Never connect a hot red output to ground or to another hot red output 19 Non use periods The power cord of equipment should be unplugged from the outlet when left unused for a long period of tim...

Page 8: ...Ph 61 2 9647 1411 Fax 61 2 9748 2537 E mail international australianmonitor com ...

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