54 • Changing the AC-Voltage Selection NEW FOCUS, Inc.
Figure 8:
Power Module with
the cover open
3. Remove the AC-voltage selection wheel from the unit.
Do not attempt to rotate the wheel while it is still in the power
entry module; the wheel must be removed, turned, and then
reinserted for proper operation.
4. Re-insert the wheel into the module so the desired AC voltage can
be viewed in the power-module window.
5. Ensure the proper fuses are installed in your system.
The power entry module requires two 5x20 mm, slow-blow fuses,
such as Littelfuse’s Slo-Blo
®
239 series: one for the hot line and the
other for the neutral line. Replacement fuses should be as follows:
Figure 9:
AC Voltages and
their recom-
mended fuses
6. Close the power-module cover.
7. Verify the proper voltage is showing through the module window.
8. Reconnect the AC-power cord.
120Vac
~
100Vac
~
220Vac
~
AC-voltage selection wheel
Fuses
AC Voltage Fuse Rating Slo-Blo Fuse #
100 V AC 0.8 A 239.800
120 V AV 0.8 A 239.800
220 V AC 0.4 A 239.400
240 V AC 0.4 A 239.400
Vortex6000.book Page 54 Tuesday, February 19, 2002 3:25 PM
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