5
‐
1
888
‐
2720
‐
001
WARNING:
Disconnect
primary
power
prior
to
servicing.
Copyright
©2013,
Harris
Broadcast
FAX 5/10/20/30/40KW
October 28, 2013
Section-5 Maintenance
5
5.1
Introduction
This
section
provides
maintenance,
calibration
and
board
replacement
procedures
for
qualified
technical
personnel.
This
section
assumes
that
the
Engineer
performing
the
maintenance
has
a
working
knowledge
of
the
transmitter
and
Section
3
of
this
manual
in
particular.
Routine
maintenance
of
the
FAX
series
transmitter
consists
of
regular
cleaning
and
the
monitoring
of
power,
VSWR,
voltages,
and
current
readings
to
detect
any
deviations
that
might
indicate
a
developing
problem.To
maximize
equipment
reliability
and
longevity,
it
is
important
to
develop
and
stick
to
a
well
designed
maintenance
routine.
A
transmitter’s
performance
and
longevity
will
be
maximized
if
it
is
properly
maintained
by
a
well
‐
trained,
technically
skilled
individual.
To
this
end,
Harris
Broadcast
offers
a
variety
of
training
classes
specific
to
Flexiva
FAX
series
transmitters.
Contact
your
Harris
Broadcast
representative
or
visit
the
Harris
Broadcast
website
at
www.harrisbroadcast.com
for
more
information
on
training
offerings.
5.1.1
Safety Precautions
The
amplifier
chassis
is
composed
of
two
general
zones:
the
front
half,
as
accessed
by
the
front
door
and
the
rear
half,
as
accessed
by
the
rear
door.
The
front
door
is
hinged
and
can
be
opened
while
the
transmitter
is
running
for
access
to
the
PA,
IPA,
and
PS
modules.
The
PA,
IPA,
and
PS
modules
may
be
replaced
while
the
transmitter
is
operating.
The
rear
door
requires
a
tool
to
gain
access
and
should
never
be
opened
while
the
transmitter
is
operating.
It
is
very
dangerous
to
attempt
to
make
measurements
or
to
replace
components
in
the
rear
chamber
with
the
mains
power
applied.
If
door
is
opened
while
transmitter
is
operating,
the
transmitter
will
trip
the
airflow
sensor
and
shut
the
transmitter
down
until
it
is
closed.
Shut
off
all
power
before
servicing
the
transmitter,
other
than
replacement
of
PA,
IPA,
and
PS
modules.
Warning
NEVER PERFORM TRANSMITTER MAINTENANCE WHILE ALONE AND/OR NOT FULLY
ALERT. SERIOUS BODILY INJURY OR DEATH COULD RESULT FROM FAILURE TO
OBSERVE PROPER SAFETY PRECAUTIONS.
5.2
Dipswitch Settings
See
the
below
tables
for
various
switch
settings
for
each
printed
circuit
board
in
the
transmitter.
Care
should
be
taken
when
replacing
boards
as
revision
levels
change
and
this
may
effect
the
switch
settings.
If
setting
does
not
state
"USER"
then
the
switch
should
not
be
changed
from
its
factory
default
unless
Factory
Service
is
consulted.
If
Setting
column
states
"Model"
the
switch
setting
is
model
dependant.
Summary of Contents for Flexiva FAX 10KW
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