Preventive Maintenance and Fault-finding
Page 5-12
Instruction Manual: evolution 5000 E5500 Mobile Contribution Encoder
ST.TM.E10033.3
Table 5.4: Data Channel Fault-finding
Step
Action
If Result of Action is Yes…
If Result of Action is No…
1
Check for Error/Alarm Indications. Is an
error message displayed?
Troubleshoot according to the displayed
message (see Annex C). Try to identify the
source of the problem and the knock-on
effects.
Proceed to next step.
2
Check Data Input and Cables. Check the
data source is functioning correctly by
connecting it directly to local monitoring
equipment. Is the data signal present/
clean?
Check the input cables by swapping them
with ones of known quality/performance, to
see whether it is a cable problem.
Check the input cables by swapping
them with ones of known quality/
performance, to see whether it is a
cable problem. If the cables are fine,
fault-find the data source.
3
Check Configuration. Is the configuration
valid? Are the parameters which have been
selected, workable? (see Getting Started in
Chapter 3, Operating the Equipment
Locally)
Proceed to next step.
If in doubt about the configuration, load
a configuration which has previously
proven successful, and try again.
4
Check Receiver and Cables. Are the
problems only exhibited on the monitoring
Receiver output and not on the transmitted
signal?
Possible problem with the Receiver or
associated cables. Check the rear panel
cables connecting the Receiver by
swapping them for ones of known quality/
performance. If the fault persists, call a
Service Engineer.
If the fault persists, call a Service
Engineer.
5.4.10
Alarm(s) Indicated but Signals are Good
If the front panel Alarm LED is displayed, accompanied by an error
message, then troubleshoot in accordance with the message (see Section
5.4.5, Error Messages).
If the MCE alarm is raised but video, audio and data transmission appear
to be unaffected, this suggests that there is a very localised problem with
functions not currently in use. In the event of persistent problems call a
Service Engineer or contact Customer Services.
