Troubleshooting - Prevail-Catv WT-1550-EM10 Operating Manual

6.2 Troubleshooting

Should a problem occur, see if the symptoms are listed in Table 6-1.
Table 6-1: Troubleshooting Solutions
Indicator
Alarm menu content
status
Power
indicator is Power Invalid LEFT (RIGHT)
yellow
-5V Status
Power
+5V
indicator is
+12V Status
flash
-12V Status
yellow
+24V Status
RF IN Status LOW (HIGH)
RF
indicator is
flash red
CSO Initialization failed
Laser Bias
Laser
indicator is
flash red
Laser TEC
WT-1550-EM10 1550nm external modulated optical transmitter operating manual
HIGH (LOW)
Status HIGH (LOW)
HIGH (LOW)
HIGH (LOW)
HIGH (LOW)
HIGH
HIGH
Fault
phenomenon
The left (right)
power is break
down or the power
cord is not
plugged in
Power alarm
menu shows one
of the contents
The laser is off
RF input is low
(high)
CSO nonlinearity
indexes are poor
The laser is off
The laser is off
- 25 -
Solution
Plug in the left (right) power
cord. If that does not correct
the problem, contact Customer
Service. Replace the power
supply.
Contact Customer Service.
Verify the optical transmitter is
operating within the proper
input level threshold range
(78-96dBµ V).
If that does not solve the
problem, contact Customer
Service.
Disconnect the RF connection,
wait 10 seconds before
reconnecting the RF signal.
Contact Customer Service.
Verify that the unit is operating
within the proper temperature
range (-5～+45℃).
Verify that nothing is
obstructing airflow through the
openings in the front and back
of the unit.
Recall factory settings by
pressing the key on the front
panel (see Section 3).
If that does not correct the
problem, contact Customer
Service.