User guide

Preventive Maintenance and Fault-finding
6.4 Fault-finding
6.4.1 Fault-finding Philosophy
It is the objective of this chapter to provide sufficient information to enable the
operator to rectify apparent faults or else to identify the suspect module, where
possible. Some basic procedures are provided to follow in the event of a suspected
EQ8096 failure. It is assumed that fault-finding has already been performed at a
system level and that other equipment units have been eliminated as the possible
cause of the failure (see relevant System Manual).
Warning!
Removing the covers of this equipment may invalidate any warranties, cause a
safety hazard or/and affect the EMC performance.
Caution!
Do not remove the covers of this equipment. Unauthorised maintenance or the use
of non-approved replacements may affect the equipment specification and invalidate
any warranties.
This Reference Guide does not include any maintenance information or procedures
that would require the removal of covers.
If the following information fails to clear the abnormal condition, call a Service
Engineer or contact Customer Services using the information given in the
preliminary pages of this Reference Guide.
6.4.2 Preliminary Checks
Always investigate the failure symptoms fully, prior to taking remedial action. Fault
diagnosis for the equipment operator is limited to the following tasks, since the
operator should NOT remove the covers of the equipment:
1. Check the front panel Power LED (green). If this is not lit, refer to Table 6.1.
2. Confirm that the equipment hardware configuration is suitable for the purpose
and has been correctly installed and connected (see Chapter 2, Installing the
Equipment).
3. Confirm that inappropriate operator action is not causing the problem, and that
the equipment software set up is capable of performing the task being asked of
it. If the validity of the configuration, set up or operation is in doubt, check it (see
Chapter 3, Operating the EQ8096 Using the Web Browser).
4. Check that the fans are unobstructed and working correctly.
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