Service Manual

6802800U74-AN
Chapter 13: MTS Troubleshooting
381
Alarm ID
Descrip-
tion
Recovery
Action
the cover-
age can be
lower
Clear Ac-
tion
Notes
• ALM_RX_DC_INJ2_FAUL
T
• ALM_RX_DC_INJ2_FAIL
• ALM_RX_DC_INJ3_FAUL
T
• ALM_RX_DC_INJ3_FAIL
Receiver
branch2
LNA DC in-
jection fail-
ure.
Receiver
branch3
LNA DC in-
jection fail-
ure.
Branch2 of
Receiver is
disabled by
the software
- if no more
enabled
branches
then BRC is
unable to re-
ceive, other-
wise BRC is
still able to
receive but
the cover-
age can be
lower
Branch3 of
Receiver is
disabled by
the software
- if no more
enabled
branches
then BRC is
unable to re-
ceive, other-
wise BRC is
still able to
receive but
the cover-
age can be
lower
If the alarm
condition
disappears
then
branch2 of
Receiver is
re-enabled
by the soft-
ware.
If the alarm
condition
disappears
then
branch3 of
Receiver is
re-enabled
by the soft-
ware.
The alarm may
be reported be-
cause of the
BRC hardware
failure or config-
uration prob-
lems.
The alarm may
be reported be-
cause of the
BRC hardware
failure or config-
uration prob-
lems.
ALM_RX_DC_INJ_FAIL Reported when ALM_RX_DC_INJx_FAULT alarms for all Receiv-
er branches are set
• ALM_RX_DC_INJ1_SHOR
T_FAULT
• ALM_RX_DC_INJ1_SHOR
T_FAIL
Receiver
branch1
LNA DC in-
jection fail-
ure.
Branch1 of
Receiver is
disabled by
the software
- if no more
enabled
branches
then BRC is
unable to re-
ceive, other-
wise BRC is
still able to
receive but
If the alarm
condition
disappears
then
branch1 of
Receiver is
re-enabled
by the soft-
ware.
The alarm may
be reported be-
cause of the
BRC hardware
failure.