T-VIPS CP525 cMux, Руководство пользователя

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258 Preventive Maintenance and Fault-finding
CP525 cMux User’s Manual Rev. 5.20.12 (3944) ID: um_tsmux
11.1.4 Warranty
The CP525 is covered by standard T-VIPS warranty service for a period of 24 months following
the date of delivery.
The warranty covers the following:
• All defects in material and workmanship (hardware only) under normal use and service.
•
All parts and labour charges
• Return of the repaired item to the customer, postage paid.
• Customer assistance through T-VIPS Customer Service Help Line
The warranty does not cover any engineering visit(s) to the customer premises.
11.2 Fault-finding
The objective of this chapter is to provide sufficient information to enable the operator to rectify
apparent faults or else to identify where the apparent fault might be. It is assumed that fault-
finding has already been performed at a system level, and that the fault cannot be attributed to
other system components.
This manual does not provide any maintenance information or procedures which would require
removal of covers.
Warning: Do not remove the covers of this equipment. Hazardous volt-
ages are present within this equipment and may be exposed if the covers
are removed. Only T-VIPS trained and approved service engineers are
permitted to service this equipment.
Caution: Unauthorised maintenance or the use of non-approved replace-
ment parts may affect the equipment specification and will invalidate any
warranties.
If the following information fails to clear the abnormal condition, please contact your local
reseller or T-VIPS customer care.
11.2.1 Preliminary checks
Always investigate the failure symptoms fully, prior to taking remedial action. The operator
should not remove the cover of the equipment to carry out the fault diagnosis. The following
fault-finding tasks can be carried out:
• Check that the PSU LED is lit. If this is not lit, replace external equipment, power
source and cables by substitution to check that these are not defect.