Handbook

PBL UHF1/1A 1 & 2 Air Interface
Maintenance Handbook
H/book Number:-60-055900HBKM
Issue No:-2
Date:-20/10/2003
Page:-
4 of 85
5.2.7.1 Description .......................................................................................................................................68
5.2.7.2 Technical Specification ....................................................................................................................68
5.2.7.3 Drg. Nō. 12-004201, PA General Assembly....................................................................................69
5.2.7.4 Drg. Nō. 12-004270, PA Circuit Diagram .......................................................................................70
5.2.7.5 Drg. Nō. 12-004270C1, PA Parts List(1).........................................................................................71
5.2.7.6 Drg. Nō. 12-004270C2, PA Parts List(2).........................................................................................72
5.2.7.7 Drg. Nō. 12-003670, PA to Alarm Wiring Details ..........................................................................73
5.2.8 DC/DC Converter, 24V in, 12V 8A out (13-003011) See section 5.1.7..................................................74
5.2.9 Chan. Selec. & Chan. Contr. Mdls (17-003012 & 17-002101) See section 5.1.8 ...................................74
5.2.10 21MHz IF Filter Board (17-002502)....................................................................................................74
5.2.10.1 Description ...................................................................................................................................74
5.2.11 Single & Dual 24Volt Relay Boards (20-001602 & 80-008902) See section 5.1.9.............................74
5.2.12 SMA Coaxial Termination (93-930003) See section 5.1.10 ................................................................74
5.2.13 24V 400W Flat-Pack Power Supply (96-300011) See section 5.1.11 .................................................74
5.2.14 JWS75-15/A PSU (96-300045)............................................................................................................74
5.2.14.1 Description ...................................................................................................................................74
5.2.14.2 Technical Specification ................................................................................................................74
5.2.15 Single Mode Optical Coupler (98-100001)..........................................................................................75
5.2.15.1 Description ...................................................................................................................................75
5.2.16. Fibre Optic Receiver & Transmitter (98-200003 & 98-300003) .........................................................75
5.2.16.1 Description ...................................................................................................................................75
5.2.16.2 Technical Specification ................................................................................................................76
5.3 UHF1A 60-055903 470MHZ 3 CHANNEL BDA.........................................................................................77
6. INSTALLATION............................................................................................................................ 78
6.1 INITIAL INSTALLATION RECORD ................................................................................................................78
6.2 GENERAL .....................................................................................................................................................78
6.3 ELECTRICAL CONNECTIONS .......................................................................................................................78
6.4 OPTICAL CONNECTIONS..............................................................................................................................78
6.5 RF CONNECTIONS .......................................................................................................................................79
6.6 COMMISSIONING..........................................................................................................................................79
7. MAINTENANCE............................................................................................................................ 80
7.1 GENERAL PROCEDURES ..............................................................................................................................80
7.1.1 Fault Finding ............................................................................................................................................80
7.1.2 Downlink..................................................................................................................................................81
7.1.3 Uplink.......................................................................................................................................................81
7.1.4 Fault repair ...............................................................................................................................................81
7.1.5 Checking service ......................................................................................................................................82
7.1.6 Service Support ........................................................................................................................................82
7.2 TOOLS & TEST EQUIPMENT........................................................................................................................82
7.3 CARE OF MODULES .....................................................................................................................................83
7.3.1 General Comments...................................................................................................................................83
7.3.2 Module Removal (LNA’s, general procedure): .......................................................................................83
7.3.3 Module Replacement (general): ...............................................................................................................83
7.3.4 Power Amplifiers .....................................................................................................................................83
7.3.5 Low Power Amplifier Replacement.........................................................................................................84
7.3.6 Module Transportation:............................................................................................................................84
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 85