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Preventive Maintenance and Fault-finding
7.5 Fault-finding
7.5.1 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.
7.5.2 System Defaults
The system defaults can be restored at any time using the Restore System
Defaults option (Menu 7.1.4).
7.5.3 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 C/N margin display to ensure that the C/N margin is greater than 0 db. If
it is not, check the input to the Receiver.
7.5.4 Ethernet Remote Control
Caution!
Be sure to set the correct format and address via the front panel before attempting
to use this control method. The Multi-Format Receiver will ignore any remote control
commands if the input is not correctly set.
EN/LZT 790 0003/2 R1A
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