Product manual

Maintenance, Introduction
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
1
Chapter 1 Introduction
The concept of maintenance for the DCT1800-GAP system is to undertake component repair and
replacement at the DCT1800-GAP system repair centre. Site maintenance is therefore limited to one
of module replacement only. These modules are easily replaceable elements, like system boards,
base stations, fuses, cordless phones, desk chargers etc.
This section describes how in a malfunctioning system faulty modules can be found and replaced, i.e.
corrective maintenance. Furthermore, background information is given about the system’s internal
diagnostic-and-test facilities as to indicate the reliability and completeness of the test and maintenance
software.
About this section
Chapter 1 : Introduction
Introduces you to this section.
Chapter 2 : Test and maintenance software
Describes the test and maintenance software.
Chapter 3 : Fault signalling
Describes how maintenance personnel and system managers are informed about
faults by means of error messages, LEDs and user complaints.
Chapter 4 : Fault reports
Fault reports are necessary to analyse serious system problems. These reports
are generated by the Windows application Cordless System Manager (CSM).
Chapter 5 : Part replacement
Gives you clear instructions on how to replace defective modules
Chapter 6 : Fault finding procedures
In addition to the cordless system software the flow charts in this chapter will help
you finding the defect module.
1.1 Qualified personnel
Since maintenance is strictly reserved to qualified installation and maintenance engineers only,
persons who have not received instructions for accessing the equipment are not allowed to access
the DCT1800-GAP system. Any such actions will be considered as unauthorized access. Authorized
access is permitted to engineers who are properly trained and certified by authorized DCT1800-GAP
system distributors.
1.2 Preventive maintenance
Although preventive maintenance is not applicable to the DCT1800-GAP systems pay attention to the
following:
Wiring
Accurate and secure installation may prevent wiring failures, loose contacts etc. in the future.
Safety requirements
Whenever the system is being accessed, take care that all ESD precautions have been taken. Do not
ever touch boards without having yourself connected to the ground by a wrist-strap.
Read chapter ‘Protection against electrostatic discharge’ in the section ‘Safety and regulatory
information’ in this manual carefully, if not acquainted.