User's Manual Part 3

Screen Service SDT 501 UB-C ARK 1-T Operations
May, 2010 v 1.0 Page 3 - 101
Alarm Description and limitations Troubleshooting
DVB-T System Delay
The internal counter, used to apply the System delay is not
lock to 1 PPS. This alarm’s RF OFF mask should always be
enabled.
Alarm raising limitations:
The monitoring of this alarm is enabled only when the device
has SFN modulation enabled.
• Check 1PPS
• Hardware fault
DVB-T No MIP
MIP packets missing. This alarm’s RF OFF mask should
always be enabled.
Alarm raising limitations:
The monitoring of this alarm is enabled only when the device
has SFN modulation enabled.
The monitoring of this alarm is disabled when a No Input
alarm is raised.
• Check input signal
No Input
DVB: Selected TS input not locked. Only when ASI and GBE
inputs are selected as input HP and/or LP. This alarm’s RF
OFF mask should always be enabled.
ITU: Selected SDI Input not present or video standard (525
or 625 lines) not compatible with modulator one as defined
by parameter LINE_625_525 in .mod file (1=625).
• Check input statistics
FPGA Boot alarm FPGA boot has not been successfully completed.
• Restart the machine
• Reload the file system