User's Manual

Screen Service SDT 200UB – SDT 500UB ARK-1 ATSC Operations
July, 2009 v 1.0 Page 3 - 95
Temperature High Warning Temperature level goes over the warning threshold. I/A 0
Forward Power High FWD power goes over the maximum endurable limit. I/A
• Verify that the No RF Input alarm is enabled in the RF Off alarms
mask
• Hardware fault
0
Forward Power Low Alarm FWD power level goes over the alarm threshold. I/A 0
Forward Power Low Warning FWD power level goes over the warning threshold. I/A
• Check alarm and warning thresholds
• At every amplifier initialization the FWD power alarm and warning
are temporary on
• Amplifier is not properly working, hardware fault
0
Reflex Power High RFL power goes over the maximum endurable limit. I/A
• Check the RF output for disconnection or wrong impendence
adaptation
0