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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.
ACOM 2100 Transformer Installation
C A U T I O N
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Table of Contents
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Summary of Contents for Acom 2100
- 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.
- Page 2 Turn the Mains board right. Take the transformer out of the carton and remove the shipping board. Keep the board together with the four long screws and all packing for possible future transportation. For transformer mounting, four shorter screws (metric M6x12) are provided in a polyethylene envelope inside the same carton.
- Page 3 Plug in the filament supply connector.
- Page 4 Plug in two HV Fast-on connectors to the HV Rectifier board C A U T I O N Insert the two rubber grommets (readily threaded 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.
- Page 5 Turn the Mains board back to its original position, 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 The picture shows 240VAC arrangement. 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.
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