Kantronics KPC-2 - Watch Dog Timers

Enabling
the
Isolation
Circuit
in
the
KPC-4
Separate
circuits
are
provided
for
each
radio
port.
Jumper
X
is
for
Port
1,
Jumper
Y
is
for
Port
2.
1.
Refer
to
the
Assembly
and
Disassembly
section
for
instructions
if
necessary
and
remove
the
KPC-4
from
its
case.
2.
Locate
point
X
or
Y
on
the
PC
board.
This
location
is
at
the
rear
of
the
PC
board.
3.
Locate
the
three
points
associated
with
X
or
Y.
Note
that
there
is
a
jumper
at
each
of
these
locations
which
is
in
position
1.
4. Carefully cut the jumper.
5.
Install
a
new
jumper
in
position
2.
You
may
wish
to
make
this
connection
on
the
bottom
of
the
PC
board
instead
of
the
component
side.
6.
Connect
the
AFSK
and
PTT
lines
together.
i
©
Copyright
1989,
Kantronics,
Inc.
All
Rights
Reserved.
Version
2.85
Duplication
of
this
manual
or
the
firmware
without
Installation
Manual
permission
of
Kantronics,
Inc.
is
prohibited.