Section-5 Maintenance
October 28, 2013
5
‐
12
Copyright
©2013,
Harris
Broadcast
WARNING:
Disconnect
primary
power
prior
to
servicing.
888
‐
2720
‐
001
Note
The IPA module contains two IPA amplifiers with a green “ON” status LED for each module half visible
from the front of the IPA module. If the 10kW Transmitter is operating with power out and the IPA is
removed, the transmitter will stop producing RF and therefore will be off-the-air. In the 20/30/40kW
Transmitters, only the affected Power Block will stop producing RF causing a decrease in total system
power out.
STEP 1
Verify
which
module
is
faulted.
Use
same
procedure
for
the
IPA
module.
In
the
10kW
Transmitter,
removing
the
IPA
while
the
transmitter
is
operating
will
cause
the
transmitter
to
stop
producing
RF
and
become
off
‐
the
‐
air.
In
the
20/30/40kW
Transmitters,
only
the
affected
Power
Block
will
stop
producing
RF
causing
a
reduction
in
total
output
power.
STEP 2
Open
amplifier
front
door
by
loosening
the
2
thumbscrews.
STEP 3
Remove
faulted
PA
module
from
transmitter
by
pulling
module
forward
and
out
of
the
slot.
There
are
not
latches
holding
the
module
in
place.
STEP 4
Insert
replacement
PA
module.
Normally,
the
PA
module
will
turn
on
automatically.
Pressing
the
front
panel
ON
button
will
also
create
an
ON
command
for
all
modules
without
any
interruption
of
system
operation.
STEP 5
If
desired,
use
the
front
panel
LCD
Display,
or
use
a
pc
connected
to
the
front
panel
Ethernet
port,
to
check
all
PA
module
currents
to
verify
new
PA
module
has
a
current
draw
similar
to
all
other
modules.
STEP 6
Close
amplifier
front
door.
5.5.2
Power Supply Module Replacement Procedure
The
PS
modules
are
hot
‐
pluggable
and
may
be
swapped
at
any
time
while
the
transmitter
is
operating.
Any
PS
module
may
be
swapped
with
a
PS
module
in
another
position.
STEP 1
Verify
which
module
is
faulted.
STEP 2
Open
amplifier
front
door.
Grab
the
top
lip
of
the
PS
module
and
push
the
metal
clip
up
to
release
the
handle
and
pull
supply
straight
out.
STEP 3
Allow
the
power
supply
to
sit
removed
from
its
slot
for
about
5
minutes.
STEP 4
Re
‐
insert
the
module
back
in
to
the
slot
and
check
to
see
of
the
faults
return.
If
the
faults
do
not
return
let
the
supply
run
for
30
minutes,
if
no
faults
leave
the
supply
in
the
slot.
STEP 5
If
faults
return
remove
the
power
supply
from
the
slot.
Figure 5-3 PS module Handle Release.
Summary of Contents for Flexiva FAX 5KW
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