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VOLTAGE CONVERSION INSTRUCTIONS
220 Volt to 110 Volt Conversion 110 Volt to 220 Volt Conversion
1. 220 Volt to 110 Volt Conversion
Note: Conversions must be performed
with the line cord disconnected from any
power source. Refer to Figure 3 below for
the following procedures. The jumpers
listed in parentheses refer to the SMD
units.
1.1 Perform disassembly procedure 3,
PCB removal.
1.2 Locate jumper LK-31, (LK-35) in front
of the power transformer (near the line
cord), and remove it.
1.3 Add jumpers LK-32 (LK-42) and LK-33
(LK-43).
For European 220 Volt units.
1.4 Remove the 220 Volt line cord and
replace it with a 110 Volt line cord. Make
certain the line cord is properly installed in
the strain relief.
1.5 Perform assembly procedure 4, PCB
replacement.
1.6 Test the unit to confirm the voltage
conversion was perform correctly.
1.7 Remove the 220 Volt label on the rear
of the unit.
2. 110 Volt to 220 Volt Conversion
2.1 Perform disassembly procedure 3,
PCB removal.
2.2 Remove the two jumpers LK-32 (LK-
42) and LK-33 (LK-43).
For units with a 110 Volt transformer.
2.2 Remove the 110 Volt transformer and
C1 capacitor, and install 220 Volt compo-
nents (see the part list).
2.3 Add jumper LK-31 (LK-35). Line cord
replacement is optional.
2.4 Perform assembly procedure 4, PCB
replacement.
2.5 Test the unit to confirm the voltage
conversion was perform correctly.
2.6 Add a 220 Volt label on the rear of the
unit just below the line cord.
Voltage Conversions are to be performed on Military units. However it is possible to convert
a 110 Volt unit (by replacing the transformer) and a 220 Volt European unit.
Figure 5. Voltage Conversion Diagram