1.4
Troubleshooting
UPCC
1.4.3
Troubleshooting Procedures (Sheet 1 of 2)
System malfunctions
can
sometimes
be
corrected
by
executing the basic
troubleshooting procedure
that
fol-
lows:
1 . Turn the computer containing the
UPCC
hardware
off
and
then back
on.
This action
resets
and
initializes
the system. If the malfunction per-
sists, proceed
to
the next step.
2.
Check
that
cable connections are
secure.
3. Inspect hardware
for
visible dam-
age:
e.g., bent pins, broken compo-
nents,
damaged
wires, etc.
4.
Check
for
proper switch
and
jum-
per configurations
on
each
board
in
the
system
that
contains
the
UPCC.
5. Bypass
RIPL
board (if installed]
by
connecting VS system serial cable
to
WLOC board
in
computer con-
taining the
UPCC.
This involves the
following steps:
a.
Disconnect VS serial cable from
RIPL
board.
b.
Disconnect 10-inch coaxial
928
cable from WLOC board.
c.
Connect
VS serial cable
to
BNC/TNC connectors
on
WLOC
board.
6. Power-up
UPCC
system. If system
runs correctly, replace
RIPL
board.
If system still malfunctions, a more
extensive
troubleshooting
ap-
proach will
be
necessary: refer
to
the next subsection.
741-1859
Page
1-13
COMPANY
CONFIDENTIAL
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