User's Manual Part 2

Appen
d
ix C 3EM21522AAAA
DTR-0200-SA-SIRIUS Issue 1, March 2008
C-8
VSAT LNB Over Current Antenna shorted Antenna shorted Investigate antenna &
antenna cable.
VSAT Receiver Internal
Fault
Typically comes along
with Satellite Receiver
Unlocked
Any alarm on the satellite
receiver
If the receiver is locked
but there is an internal
fault, replace the SPU
VSAT Unlocked VSAT signal lost VSAT unlocked to input
signal
Check VSAT input signal
Wrong Input Stream
Type
The incoming stream
doesn’t match the set
parameters in “Input
Stream Type”
“Input Stream Type” is
set to Legacy while the
incoming stream is Over-
lay
Refer to Section 5, Fig-
ure 5-10. Switch the
“Input Stream Type” to
Overlay or Legacy to
match the incoming
stream. Set this parame-
ter to Auto to avoid fur-
ther problems.
If no alarms are received from the modulator during the power-up – check the “Main Controller Address”
parameter on the modulator.
Table C-1 Alarms, Possible Causes, and Suggested Response (Continued)
Alarm Description Possible Cause Operator Response