Table of Contents
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Preventive Maintenance and Fault-Finding
Chapter 4
Contents
4.1
4.2
4.2.1
4.2.1.1
4.2.2
4.2.3
4.2.3.1
4.2.3.2
4.2.3.3
4.3
4.3.1
4.3.2
4.3.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
List of Tables
Table 4.1 Summary Status LED Unlit Fault-Finding ............................................ 4-7
Table 4.2 Fans Not Working/Overheating Fault-Finding ...................................... 4-8
Table 4.3 Input Card Failure Fault-Finding .......................................................... 4-8
EN/LZT 790 0005 R7A
Introduction ......................................................................................... 4-3
Preventive Maintenance ...................................................................... 4-3
Routing Inspection ............................................................................... 4-3
Cooling Fans ....................................................................................... 4-3
Cleaning .............................................................................................. 4-3
Servicing ............................................................................................. 4-4
Conditions Requiring Servicing ............................................................ 4-4
Replacement Parts .............................................................................. 4-4
Checks on Completion of Servicing ..................................................... 4-4
Maintenance and Support Services ..................................................... 4-5
Introduction ......................................................................................... 4-5
Warranty .............................................................................................. 4-5
Service Levels Agreements ................................................................. 4-5
Fault-finding......................................................................................... 4-5
General ............................................................................................... 4-5
System Defaults .................................................................................. 4-6
Preliminary Investigations .................................................................... 4-6
AC Fuse Replacement (Not RX8305) .................................................. 4-6
Power Supply Problems ...................................................................... 4-7
Summary Status LED Unlit .................................................................. 4-7
Fan(s) Not Working/Overheating ......................................................... 4-7
Input Card Failure ................................................................................ 4-8
4-1
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