User's Manual

Page
TOC - 4
Section 5 Maintenance
5.1 INTRODUCTION .............................................................................................5 - 1
5.2 MAINTENANCE PHILOSOPHY .........................................................................5 - 2
5.3 RECOMMENDED TEST EQUIPMENT ................................................................5 - 4
5.4 OPTIONAL TEST EQUIPMENT ..........................................................................5 - 4
5.5 PERSONAL COMPUTER (PC)/LAPTOP ..............................................................5 - 5
5.6 MDR-8000 ALARMS ........................................................................................5 - 7
5.7 ALARM MONITORING AND INSPECTION .......................................................5 - 7
5.8 RECOMMENDED PERIODIC CHECKS ..............................................................5 - 8
5.9 RADIO TROUBLESHOOTING ...........................................................................5 - 8
5.9.1 Troubleshooting USI Alarms ..............................................................................5 - 8
5.9.2 Troubleshooting RCVR Lockup Problems ............................................................5 - 8
5.9.3 Troubleshooting Performance Screen Errors .......................................................5 - 9
5.10 ETHERNET-SPECIFIC TROUBLESHOOTING ......................................................5 - 24
5.10.1 Troubleshooting Using Ethernet I/O Interface Module Front Panel Indicators ......5 - 24
5.11 TMN-SPECIFIC TROUBLESHOOTING ..............................................................5 - 26
5.12 MODULE REPLACEMENT ...............................................................................5 - 29
5.13 POWER SUPPLY REMOVAL AND REPLACEMENT ............................................5 - 32
5.14 CONTROLLER REMOVAL AND REPLACEMENT ...............................................5 - 33
5.15 DS3 I/O INTERFACE REMOVAL AND REPLACEMENT .....................................5 - 37
5.16 OC3/STM-1/ETH I/O INTERFACE REMOVAL AND REPLACEMENT ................ 5 - 39
5.17 XMTR REMOVAL AND REPLACEMENT ...........................................................5 - 40
5.18 XMT CRYSTAL OSCILLATOR FREQUENCY CORRECTION ................................5 - 46
5.19 XMTR OUTPUT LEVEL CHECK (NO PA) ...........................................................5 - 47
5.20 IN-SERVICE XMTR CARRIER NULL ADJUSTMENT
USING SPECTRUM ANALYZER .......................................................................5 - 48
5.21 XMTR OUTPUT LEVEL CALIBRATION ...............................................................5 - 56
5.22 RCVR REMOVAL AND REPLACEMENT ............................................................5 - 61
5.23 RCV CRYSTAL OSCILLATOR FREQUENCY CORRECTION ................................5 - 64
5.24 PA REMOVAL AND REPLACEMENT ................................................................5 - 65
5.25 PA OUTPUT LEVEL CALIBRATION ...................................................................5 - 67
5.26 CHANGING FREQUENCY .............................................................................5 - 72
5.27 CLEANING ...................................................................................................5 - 72