Rewiring for 220-240 V 50 Hz Operation
The 1),1 AC-1500 can be rewired for operation abroad. Please refer this conversion to a skilled
electronics technician to avoid personal injury or possible hann to the unit. There are high voltages
present inside the chassis even after the power is turned off.
The main power supply printed circuit board has three separate power transformers. N carby the
transformers you will find jumper wires which correspond to the various primary windings of each
power transformer.
For 120 Y operation, a total of six jumper wires are connected to the circuit board: two jumpem
are connected near each transformer, each jumper bas "120 Y" printed alongside of it on the circuit
board.
For 220-240 V operation, only 3 jumpers are connected to the circuit board; one jumper is
connected near each transfonner, each jumper has "220 V" printed alongside of it on the circuit
board.
For 220-240 V operation, you must also disconnect the six "120 V" jumpers.
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