Handbook

Denver Channelised CE
User/Maintenance Handbook
Handbook Nō.-50-063708HBKM Issue No:-2
Date:-03/11/2003
Page:-
3 of 51
5.1.6.1 Description .......................................................................................................................................36
5.1.6.2 Technical Specification ....................................................................................................................36
5.2 5 Channel UHF Downlink Shelf 50-063703 .............................................................................................37
5.2.1 3dB Splitter 905-002603) See section 5.1.2 .............................................................................................37
5.2.2 3 Way Splitter/Combiner (05-003803).....................................................................................................37
5.2.2.1 Description .......................................................................................................................................37
5.2.2.2 Technical Specification ....................................................................................................................37
5.2.3 Dual DC/DC Converter (13-001803) ......................................................................................................38
5.2.3.1 Description .......................................................................................................................................38
5.2.3.2 Technical Specification ....................................................................................................................38
5.2.4 Channel Selective Module (17-003006)...................................................................................................39
5.2.4.1 Description .......................................................................................................................................39
5.2.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram......................................................40
5.2.5 12V Relay Board (20-001601) .................................................................................................................41
5.2.5.1 Description .......................................................................................................................................41
5.2.5.2 Technical Specification ....................................................................................................................41
5.3 UHF Uplink 4 Channel Shelf 50-063704 ..................................................................................................42
5.3.1 Four Way Splitter (05-003401)................................................................................................................42
5.3.1.1 Description .......................................................................................................................................42
5.3.1.2 Technical Specification 05-003401..................................................................................................42
5.4 UHF Duplex/PA Shelf 50-063705..............................................................................................................42
5.5 UHF Simplex Channel Shelf 60-063706 ...................................................................................................43
5.5.1 Simplex Controller PCB (13-002811)......................................................................................................43
5.5.1.1 Description .......................................................................................................................................43
5.5.2 ALC Attenuator Module (17-001201) ......................................................................................................43
5.5.2.1 Description .......................................................................................................................................43
5.5.3 Simplex Squelch Controller PCB (17-002802) ........................................................................................43
5.5.3.1 Description .......................................................................................................................................43
5.6 Power Supply Shelf 50-063707..................................................................................................................44
5.6.1 24V, 400W Power Supply Pack (96-300054)...........................................................................................44
5.6.1.1 Description .......................................................................................................................................44
5.6.1.1 Technical Specification ....................................................................................................................44
6. INSTALLATION............................................................................................................................ 45
6.1 Initial Installation Record .........................................................................................................................45
7. MAINTENANCE............................................................................................................................ 46
7.1 General Procedures....................................................................................................................................46
7.1.1 Fault Finding ...........................................................................................................................................46
7.1.2 Downlink ..................................................................................................................................................47
7.1.3 Uplink.......................................................................................................................................................47
7.1.4 Fault repair ..............................................................................................................................................47
7.1.5 Checking service ......................................................................................................................................48
7.1.6 Service Support ........................................................................................................................................48
7.2 Tools & Test Equipment............................................................................................................................48
7.3 Care of Modules .........................................................................................................................................49
7.3.1 General Comments...................................................................................................................................49
7.3.2 Module Removal (LNA’s, general procedure):........................................................................................49
7.3.3 Module Replacement (general):...............................................................................................................49
7.3.4 Power Amplifiers......................................................................................................................................49
7.3.5 Low Power Amplifier Replacement..........................................................................................................50
7.3.6 Module Transportation:...........................................................................................................................50
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 51