Page
8
of
9
INSTRUCTION
MANUAL
Preamplifier
Model
PAP
‐
501
19121
El
Toro
Rd
●
Silverado,
CA
92676
●
(949)
459
‐
9600
●
fax
(949)
635
‐
0329
●
com
‐
power.com
REV21516
5.4
Troubleshooting
Common
problems
Problem:
Gain
is
low
or
no
gain.
A:
Make
sure
the
power
adapter
is
plugged
in
and
the
green
is
LED
is
lit.
Check
if
the
input
and
output
cables
are
connected
securely.
Wiggle
both
cables
and
verify
if
the
signal
level
changes
on
the
receiver.
If
the
signal
changes
replace
the
defective
cable
and
check
again.
Make
sure
the
cable
from
the
signal
source
is
connected
to
the
input
not
the
output.
Verify
if
the
signal
source
connected
and
RF
is
turned
on.
If
the
signal
source
is
an
antenna
or
near
field
probes
make
sure
they
are
properly
connected.
Inject
a
known
signal
level
into
the
preamplifier
and
check
the
gain.
For
example
if
you
inject
50
dBµV,
you
should
read
~
71
to
73
dBµV
on
the
receiver.
Please
be
cautious
not
to
exceed
the
input
limits
given
in
specification
table
of
this
manual.
