Motorola MSF 5000 Instruction Manual page 216

Chapter
5
Troubleshooting
MSF
5000
Instruction Manual
Troubleshooting Description
The following troubleshooting
tables assume:
o
all external equipment is functional
all internal and interfacing
cables are
fully
secure and
properly
connected
all firmware versions
are
compatible and
are correct for the
necessary
application
all programmed parameters have been checked for accuracy and
programmed into the station
station is configured and jumpered properly for
the necessary
application
The symptoms may have several possible
causes and remedies.
If
a
failure is
isolated
to the
module level,
the suspected
module
can be replaced
with
a
functional module.
Failures Immediately After Power-Up
Table 5-1
Failures
Immediately
After Power-Up
Possible Cause
Symptom
Remedy
Station does not power-up when
AC
Blown
fuse
in
the
Junction
Box
Replace fuse
power
is
applied
No +5
Vdc
on
SSCB Check regulator circuit;
replace
SSCB
No
13.8
Vdc
output from the
power
Replace fuse; check Power
Supply
and
supply: Connector
P602
pin
3 or
pin
4
=
replace
13.8 Vdc; pin 5 or
pin
6
= ground; pin
8
=
28
Vdc if
available
No
13.8
Vdc
on
the
SSCB
at connector Replace Interconnect board
J701; pin
5
= ground; pin
1
=
13.8
Vde
Replace
SSCB power
Station does not come out of
reset
A
fatal error has occurred within
the
station
Check
reset sequence for
description;
sequence
Refer
to
Appendix
B
-
Error Codes for
detail and possible cause and remedy
TTRC
Fail
LED
is
lit
after reset sequence
Faulty
board Check and replace
TTRC
board
is complete
Tx
or
Rx Lock
LED
is not
lit
on Control Transmit
or
receive synthesizer is out of
Perform
Alignment
procedure; refer to
Tray front panel
alignment Chapter
4
-
Alignment
Illegal
frequencies programmed into Reprogram station
via RSS
station
Station
set to
wrong
frequency band
(Mosaic/non-Mosaic)
FOR TRUNKED
STATIONS.
Station enters Failsoft mode
No
TDATA
detection or mute line Check trunking cables and central
(trunking only) activity
from central controller controller
68P81092E07
3/19/94
5-2
Chapter
5
Troubleshooting
MSF
5000
Instruction Manual
Troubleshooting Description
The following troubleshooting
tables assume:
o
all external equipment is functional
all internal and interfacing
cables are
fully
secure and
properly
connected
all firmware versions
are
compatible and
are correct for the
necessary
application
all programmed parameters have been checked for accuracy and
programmed into the station
station is configured and jumpered properly for
the necessary
application
The symptoms may have several possible
causes and remedies.
If
a
failure is
isolated
to the
module level,
the suspected
module
can be replaced
with
a
functional module.
Failures Immediately After Power-Up
Table 5-1
Failures
Immediately
After Power-Up
Possible Cause
Symptom
Remedy
Station does not power-up when
AC
Blown
fuse
in
the
Junction
Box
Replace fuse
power
is
applied
No +5
Vdc
on
SSCB Check regulator circuit;
replace
SSCB
No
13.8
Vdc
output from the
power
Replace fuse; check Power
Supply
and
supply: Connector
P602
pin
3 or
pin
4
=
replace
13.8 Vdc; pin 5 or
pin
6
= ground; pin
8
=
28
Vdc if
available
No
13.8
Vdc
on
the
SSCB
at connector Replace Interconnect board
J701; pin
5
= ground; pin
1
=
13.8
Vde
Replace
SSCB power
Station does not come out of
reset
A
fatal error has occurred within
the
station
Check
reset sequence for
description;
sequence
Refer
to
Appendix
B
-
Error Codes for
detail and possible cause and remedy
TTRC
Fail
LED
is
lit
after reset sequence
Faulty
board Check and replace
TTRC
board
is complete
Tx
or
Rx Lock
LED
is not
lit
on Control Transmit
or
receive synthesizer is out of
Perform
Alignment
procedure; refer to
Tray front panel
alignment Chapter
4
-
Alignment
Illegal
frequencies programmed into Reprogram station
via RSS
station
Station
set to
wrong
frequency band
(Mosaic/non-Mosaic)
FOR TRUNKED
STATIONS.
Station enters Failsoft mode
No
TDATA
detection or mute line Check trunking cables and central
(trunking only) activity
from central controller controller
68P81092E07
3/19/94
5-2