Furuno FAR-2157 - Manual (Page 40)

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2.6 Changing AC Power Specification
To change AC power specification from 100 VAC to 220 VAC and vice versa, change fuse and
jumper wire settings and adjust the overvoltage detection circuit, following the instructions in this
section.
Processor unit
Add or remove jumper connector P108 from the PWR board 03P9339 and change the fuse in the
processor unit according to ship's mains. Then, adjust the overvoltage detection circuit, the pro-
cedure for which is shown on the next page.
Note: When switching from 220 VAC to 100 VAC, construct a jumper connector locally, referring
to the illustration on the next page. (VH8 connector housing is to be plugged into J108.)
Processor unit, inside view
Power supply Fuse Jumper connector P108
100 VAC 10A Necessary
220 VAC 5A Unnecessary
Cover of PWR board
Fuse
Upper part of processor unit
(SPU assembly omitted)
PWR board
TB1