Ericsson RX8000 - Preventive Maintenance and Fault-Finding

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