Ericsson RX8000 Series Reference Manual page 175

7 Preventive Maintenance and Fault-Finding
Contents
7.1
7.2
7.2.1
7.2.1.1
7.2.2
7.2.3
7.2.3.1
7.2.3.2
7.2.3.3
7.3
7.3.1
7.3.2
7.3.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.4.8
7.5
7.5.1
7.5.2
List of Figures
Figure 7.1 Fuse Carrier......................................................................................... 7-7
List of Tables
Table 7.1
Table 7.2 Summary Status LED Unlit Fault-finding .............................................. 7-8
Table 7.3 Fans Not Working/Overheating ............................................................ 7-9
Table 7.4 Input Card Fault-finding ........................................................................ 7-9
EN/LZT 790 0005 R1A
Introduction........................................................................................... 7-3
Preventive Maintenance ....................................................................... 7-3
Routing Inspection................................................................................ 7-3
Cooling Fans ........................................................................................ 7-3
Cleaning ............................................................................................... 7-3
Servicing............................................................................................... 7-3
Conditions Requiring Servicing ............................................................ 7-3
Replacement Parts ............................................................................... 7-4
Checks on Completion of Servicing...................................................... 7-4
Maintenance and Support Services...................................................... 7-4
Introduction........................................................................................... 7-4
Warranty ............................................................................................... 7-4
Levels of Continuing Ericsson Service Support.................................... 7-5
Fault-finding.......................................................................................... 7-5
General................................................................................................. 7-5
System Defaults ................................................................................... 7-5
Preliminary Investigations..................................................................... 7-6
AC Fuse Replacement ......................................................................... 7-6
Power Supply Problems ....................................................................... 7-7
Summary Status LED Unlit ................................................................... 7-8
Fan(s) Not Working/Overheating.......................................................... 7-8
Input Card Failure................................................................................. 7-9
Disposal................................................................................................ 7-9
Moulded Plugs...................................................................................... 7-9
Equipment .......................................................................................... 7-10
Fuse Information.................................................................................. 7-6
Chapter 7
7-1