User's Manual
P B L Tunnel Units 1 & 2
Maintenance Handbook
H/book Number:-60-056100HBKMFCC
Issue No:-2
Date:-04/01/2006
Page:-
3 of 63
5.2.4.2 Switched Attenuators .......................................................................................................................28
5.2.5 Low Noise Amplifiers (11-006102, & 11-007302) ................................................................................................... 28
5.2.5.1 Description .......................................................................................................................................28
5.2.5.2 Technical Specification (11-006102) ...............................................................................................28
5.2.5.3 Drg. N. 11-006102, Low Noise Amplifier General Assembly.......................................................29
5.2.5.4 Drg. N. 11-006170, LNA RF Circuit Diagram ..............................................................................30
5.2.5.5 Drg. N. 11-006171, LNA DC Wiring Diagram .............................................................................31
5.2.5.6 Drg. N. 11-003971, LNA DC Schematic Diagram ........................................................................32
5.2.5.7 Technical Specification (11-007302) ...............................................................................................33
5.2.5.8 Drg. N. 11-007302, LNA Assembly With Alarm Relay................................................................34
5.2.5.9 Drg. N. 11-007370, LNA RF Circuit Diagram ..............................................................................35
5.2.5.10 Drg. N. 11-007371, LNA DC Wiring Diagram .........................................................................36
5.2.6 3 Stage Amplifier Alarm Boards (12-002201) .......................................................................................................... 37
5.2.6.1 Description .......................................................................................................................................37
5.2.6.2 Technical Specification ....................................................................................................................38
5.2.6.3 Drg. N. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List..................................39
5.2.6.4 Drg. N. 12-002270, 3 Stage Alarm Board Circuit Diagram...........................................................40
5.2.6.5 Generic Wall Enclosure Alarm Wiring Sketch ................................................................................41
5.2.7 450MHz 20W Power Amplifier (12-004201)............................................................................................................ 42
5.2.7.1 Description .......................................................................................................................................42
5.2.7.2 Technical Specification ....................................................................................................................42
5.2.7.3 Drg. N. 12-004201, PA General Assembly....................................................................................43
5.2.7.4 Drg. N. 12-004270, PA Circuit Diagram .......................................................................................44
5.2.7.5 Drg. N. 12-004270C1, PA Parts List(1).........................................................................................45
5.2.7.6 Drg. N. 12-004270C2, PA Parts List(2).........................................................................................46
5.2.7.7. Drg. N. 12-003670, PA to Alarm Wiring Details ......................................................................47
5.2.8 DC/DC Converter, 24V in, 12V 8A out (13-003011) ............................................................................................... 48
5.2.8.1 Description .......................................................................................................................................48
5.2.8.2 Technical Specification ....................................................................................................................48
5.2.8.3 Photo of Regulator PCB (regulator heatsink side) ...........................................................................48
5.2.9 Wide Dynamic Range AGC (17-001105, Det. & 17-001201, Atten.)....................................................................... 49
5.2.9.1 Description .......................................................................................................................................49
5.2.9.2 Technical Specification ....................................................................................................................50
5.2.9.3 Drg. N. 17-001105, ACG Detector Assembly ...............................................................................51
5.2.9.4 Drg. N. 17-001175, Wide Range AGC Detector Circuit Diagram ................................................52
5.2.9.5 Drg. N. 17-001201, AGC Attenuator Assembly Drawing .............................................................53
5.2.9.6 Drg. N. 17-001270, AGC Attenuator Circuit Diagram..................................................................54
5.2.10 24V Single Relay Board (80-008902) ....................................................................................................................... 55
5.2.10.1 Description ...................................................................................................................................55
5.2.11 24V Flat-Pack PSU (96-300002)............................................................................................................................... 55
5.2.11.1 Description ...................................................................................................................................55
5.2.11.2 Technical Specification ................................................................................................................55
6. INSTALLATION............................................................................................................................ 56
6.1 Initial Installation Record .........................................................................................................................56
6.2 General........................................................................................................................................................56
6.3 Electrical Connections ...............................................................................................................................56
6.4 Optical Connections ...................................................................................................................................56
6.5 RF Connections ..........................................................................................................................................57
6.6 Commissioning ...........................................................................................................................................57
7. MAINTENANCE............................................................................................................................ 58
7.1 General Procedures....................................................................................................................................58
7.1.1 Fault Finding ............................................................................................................................................................. 58
7.1.2 Downlink................................................................................................................................................................... 59
7.1.3 Uplink........................................................................................................................................................................ 59
7.1.4 Fault repair ................................................................................................................................................................ 59
7.1.5 Checking service ....................................................................................................................................................... 60
7.1.6 Service Support ......................................................................................................................................................... 60
7.2 Tools & Test Equipment............................................................................................................................60
7.3 Care of Modules .........................................................................................................................................61