User Manual

6 Troubleshooting
60
Symptom Possible Fault Correction
Upconverter LCD display
not lit
Power cord not
properly connected
Check power cord connection.
Upconverter frequency
value in LCD display not
correct
The value was
changed by mistake.
Set the frequency to the correct value
(746.5 MHz). For instructions, refer to
Configuring the Upconverter on
page 3.
Power Amplifier LED & fan
not operating
AC power not
connected to the
Power Amplifier
3. Check power cord
connection.
4. Check UPS operation.
Power Amplifier display
not lit
The screen saver is in
operation
Push the front panel NAVIGATE
tactile button to refresh display
Power Amplifier display
indicates HIGH
REFLECTED POWER
(1)
Output cable or
antenna not
connected
Check cables and antenna connection
Power Amplifier display
shows a Voltage Indication
that differs from about 30V
Internal fault Call technician or replace PA
Power Amplifier display
indicates OUTPUT
POWER below 5W
Low drive power to the
PA (or wrong display)
5. Check cables
connection.
6. Validate WMTS and Upconverter
operation.
7. Compare PA reported received
level to the FAT result (section
5.1.2.1 in the FAT document).
8. Check the MMU reported received
level. Compare to the FAT result
(section 5.1.3.1).
9. If the level difference is more than
4 dB, call a technician to perform
RF test point signal verification.
; Note: Output level can be increased
by increasing the Upconverter gain on
the Upconverter front panel.