Bose 802c Service Manual download pdf (Page 18)

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

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Bose 802c Service Manual Page 18

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