Service Manual

6802800U74-AN
Chapter 13: MTS Troubleshooting
377
Alarm ID
Descrip-
tion
Recovery
Action
Clear Ac-
tion
the alarm is
cleared and
BRC can be
re-keyed
again.
Notes
• ALM_TX_VCO_MON_FAI
L
• ALM_TX_VCO_MONI-
TOR_FAIL
Exciter
VCO moni-
toring fail-
ure.
BRC is de-
keyed by the
software.
If the alarm
condition
disappears
the alarm is
cleared and
BRC can be
re-keyed
again.
ALM_TX_TRAINING_FAIL It was de-
tected that
the software
did not
schedule
the DSP
training
when it was
necessary.
BRC is de-
keyed by the
software.
The alarm is
cleared just
after BRC is
de-keyed.
If the alarm is re-
ported it means
some software
error.
ALM_TX_FRU_BAND_MIS-
MATCH
• ALM_EX_NVM_CKSUM_F
AULT
• ALM_EX_NVM_CKSUM_F
AIL
Band con-
figuration
mismatch
between
Exciter and
Power Am-
plifier was
detected
during initi-
alization.
Checksum
fault for the
Exciter
NVM pa-
rameters
was detect-
ed during
initialization
- some of
the Exciter
configura-
tion param-
eters may
be corrupt-
ed.
No recovery
action taken
by the soft-
ware.
Software at-
tempts to set
the parame-
ters to the
default val-
ues taken
from the de-
fault region
in the NVM
memory.
The alarm is
cleared only
after reset-
ting BRC.
If the opera-
tion of re-
storing de-
faults is suc-
cessful the
alarm is
cleared. Oth-
erwise the
alarm status
is un-
changed.
If the alarm is re-
ported it means
that Exciter and
Power Amplifier
may be incom-
patible. The initi-
alization fails -
BRC cannot be
keyed.
Corrupted con-
figuration pa-
rameters may
cause that BRC
works incorrect-
ly. The default
values may be
different than the
lost parameter
values. To en-
sure that the pa-
rameters can be
restored man-
ually to the earli-
er backed up
values.