9.2.1
AC Input Components
The
ac
input
components provide for ac input, including voltage
range
(115
Vac
or
230
Vac)
selection.
Figure
9-3 shows the
following ac input components.
•
EM!
filter
filters
ac
input which is connected
by
power cord directly into the EMI filter.
•
51
is
the
power
on/off switch (51 is shown in off
position in Figure 9-3).
•
52 -- is the voltage selection switch (52 is shown at 115
Vac selection in Figure 9-3).
•
Fl -- is a 2, 250 Vac input line fuse.
•
Chassis
ground
lug
-- provides ground connection of ac
input ground from LMI filter.
AC
INPUt
EMf
FILTER
CHASSIS
GROUND
LUG
J501
AC
INPUTS
TO
PS
PS AND MONITOR
BOARD
....·OM1 ....
Figure 9-3
AC Input Components Block Diagram
9-3