Acom ACOM2100 Operating Manual page 27

Now find the LV transformer voltage selector on the Mains PCB and arrange the jumpers there
according 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.
If the amplifier is wired for 100-120VAC, do not forget to replace the two rear
panel fuses.
The picture shows 240VAC arrangement.
C A U T I O N
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