Ericsson RX1290 Betriebsanweisung Seite 75

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Preventive Maintenance and Fault-finding
Reference Guide: RX1290 H.264 Contribution Receiver Page 7-5
ST.RE.E10228.1
7.4 Fault-finding
7.4.1 General
The information contained in this chapter is intended to isolate the unit as the faulty equipment
if a system failure occurs. If the following information fails to clear the abnormal condition,
please contact Customer Services using the information given in the Preliminary Pages of this
manual.
7.4.2 System Defaults
The system defaults can be restored at any time using the Restore System Defaults option
(Menu 7.1.4).
7.4.3 Preliminary Investigations
1. Ensure all leads and connectors are in place and serviceable.
2. Ensure the unit is powered. If not investigate the power source.
Check the fuse.
3. Ensure the red alarm LED on the front of the unit is not lit. If it is, investigate the Alarm
status (see Chapter 5, Alarms).
4. Use the BER display to ensure that the Post Viterbi BER is less than 2.0 E-4. If it is not,
check the input to the Receiver.
7.4.4 Ethernet Remote Control
The Contribution Receiver remote control input operates with both .
CAUTION…
Be sure to set the correct format and address via the front panel before attempting to use this control
method. The Contribution Receiver will ignore any remote control commands if the input is not correctly
set.
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