Technical Manual

EX7100 Technical Manual - Contents
©1999 Exicom Technologies (1996) Limited vi Issue 3 - August 2001
Page
VHF Mounting 7-46
7.9.2 Testing and Fault Diagnosis 7-47
General 7-47
Checking RF Connectors 7-47
7.9.3 Alignment 7-47
VHF Module Re-tuning 7-47
7.9.4 VHF Duplex Filter Replacement Procedure 7-49
7.10 UHF Duplex Filter Module Type 8045 7-50
7.10.1 General 7-50
UHF Connections 7-50
UHF Mounting 7-50
7.10.2 Testing and Fault Diagnosis 7-51
General 7-51
Checking RF Connectors 7-51
7.10.3 Alignment 7-51
BRBP Filter Adjustment (HPF) 7-53
BPBR Filter Adjustment (LPF) 7-53
Duplex Filter Adjustment 7-53
7.10.4 Duplex Tuning/Performance checks 7-54
7.10.5 UHF Duplex Filter Replacement Procedure 7-55
7.11 Modem/Controller Module Type 2966 7-56
7.11.1 General 7-56
7.11.2 Testing and Fault Diagnosis 7-57
General 7-57
Accessing the Modem/Controller 7-58
Diagnosis 7-58
7.11.3 Alignment 7-60
7.11.4 Modem/Controller Module Replacement Procedure 7-60
7.12 Front Panel Module Type 2994 7-61
7.12.1 General 7-61
7.12.2 Testing and Fault Diagnosis 7-62
7.12.3 Alignment 7-63
7.12.4 Module Replacement Procedure 7-63
7.13 Line Interfaces Type 2971 and Type 2967 7-64
7.13.1 General 7-64
Isolated Power Supply Module Type 2990 7-64
Four wire + E & M Interface Type 8022 7-64
7.13.2 Testing and Fault Diagnosis 7-66
General 7-66
Accessing the Line Interface Module 7-66
Diagnosis 7-66
7.13.3 Alignment/Re-tuning 7-67