Acom 2100 Installation Manual Download Page 1

ACOM 2100 Transformer Installation 

C A U T I O N 

After  installing  the  transformer,  the  weight  of  the  unit  is  about 

30kg,  which  should  preferably  be  handled  by  two  persons.  An 

assistant  may  be  needed  to  hold  the  amplifier  steady  during 

transformer installation. 

Position the amplifier, with the transformer not yet installed, flat on a table near 

the place where it will be used. During the process described below, when the 
amplifier cover is removed, take care not to torque or twist the chassis nor let 

the amplifier stand on edge. Do not lift the unit by only one corner. 

Remove the cover by removing all nine M3x6 screws.  

Orient the amplifier on the table so that the transformer compartment is in front 

of you. 

Unplug all five connectors from the Mains board and remove two M3x8 screws 

and one M3x6 screw.  

 

 

Summary of Contents for 2100

Page 1: ...mer not yet installed flat on a table near the place where it will be used During the process described below when the amplifier cover is removed take care not to torque or twist the chassis nor let the amplifier stand on edge Do not lift the unit by only one corner Remove the cover by removing all nine M3x6 screws Orient the amplifier on the table so that the transformer compartment is in front o...

Page 2: ...es Make sure that the transformer is centered The transformer screws must be installed NOW for safe operation Put a lock washer and a flat washer on each screw Holding its two sides front and back simultaneously pull the amplifier towards you just far enough that the two outside transformer captive nuts appear off the table edge Support the amplifier until your assistant loosely screws in the two ...

Page 3: ... 2 Plug in the filament supply connector ...

Page 4: ...eaded on each transformer HV lead in the intended chassis wall slots in order to protect both HV leads from sharp metal edges Make sure the grommets fit the slots fully and properly Thread the 8 primary leads of the HV transformer labeled with numbers 1 8 through the opening in the sub chassis carrying the Mains PCB ...

Page 5: ... pull out the 8 wires carefully and tighten the holding screws From the voltage selection table shown below select the row matching your nominal mains voltage Connect the 8 labeled HV transformer primary wires to the voltage selector terminals accordingly ...

Page 6: ...ing to the selected table row Connect all five connectors you disconnected in the beginning plus two new connectors from HV transformer Replace the cover reinstall all nine M3x6 screws first loosely and finally tighten them properly C A U T I O N If the amplifier is wired for 100 120VAC do not forget to replace the two rear panel fuses ...

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