Section 5
Troubleshooting
This section provides information to help you isolate and resolve common error conditions
reported by the OM 1000. It also provides maintenance recommendations if the unit fails to
power up. If you need assistance, contact the TRC at:
Inside the U.S.:
1-888-944-HELP (1-888-944-4357)
Outside the U.S.:
215-323-0044
.
Tables 5-1 through 5-3 contain data to aid in quickly resolving problems you may encounter
using the OM 1000:
Table 5-1 describes the operating conditions indicated by the fault LEDs on the front panel.
Table 5-2 lists common error conditions, symptoms, possible causes, and corrective actions
for common OM 1000 error conditions.
Table 5-3 lists and describes the RF modulator port testing modes.
Table 5-1
LED status indicators
Indicator Description
POWER
The
POWER
indicator glows green when power is applied to the unit.
DATA IN
The
DATA IN
indicator glows green when the unit receives data on one or more of the physical
ports or when data is being inserted by the internal PID message generator (PIDGEN).
EXT SYNC
The
EXT SYNC
indicator glows green when external symbol sync is applied. It is normal for
this indicator to be off when no external sync is applied.
PLL ERROR
The
PLL ERROR
indicator glows red when the lock-detect circuit in the phase-lock loop (PLL)
determines that the loop is not locked. The indicator is off during normal operation.
RF ERROR
The
RF ERROR
indicator glows red when the RF output level is out of specification or if the
detector senses no RF at the output. The indicator is off during normal operation and on
during a fault that causes a loss of RF. It is also on when the modulator port is in the
STANDBY mode.
FAULT SUMM
The
FAULT SUMM
indicator glows red if any major or critical internal faults are detected.
OM 1000 Installation and Operation Manual
