Siemens ST750 General Handbook page 9

7. ROUTINE MAINTENANCE PROCEDURES................................................................................. 98
7.1 ROUTINE INSPECTION OF SIGNAL EQUIPMENT ................................................................... 98
7.2 ROUTINE INSPECTION AND ELECTRICAL TESTING OF ST750 ............................................ 98
7.3 ROUTINE SETUP CHECK ....................................................................................................... 100
7.4 REPLACEMENT OF PCBS ...................................................................................................... 100
7.4.1 SAFETY REQUIREMENTS ............................................................................................... 101
7.4.2 GENERAL REQUIREMENTS ............................................................................................ 101
7.4.3 ACCESS TO PCBS IN ST750 CABINET ASSEMBLY ....................................................... 101
7.4.4 ACCESS TO PCBS IN OTHER OUTERCASES ................................................................ 102
7.4.5 REPLACEMENT OF CPU PCB ......................................................................................... 102
7.4.6 REPLACEMENT OF POWER/PHASE ASSEMBLY .......................................................... 102
7.4.7 REPLACEMENT OF MANUAL PANEL PCB ..................................................................... 103
7.4.8 REPLACEMENT OF EXPANSION I/O OR OTU PCB ........................................................ 104
7.5 REPLACEMENT OF MAINS POWER SUPPLY UNIT .............................................................. 104
7.6 REPLACING OTHER COMPONENTS ..................................................................................... 104
8. SELF-TEST FACILITY .............................................................................................................. 106
APPENDIX A - PART NUMBERS AND SPARES LIST .................................................................. 112
A.1 - PART NUMBERS .................................................................................................................. 112
A.2 - SPARES LIST ....................................................................................................................... 113
A.2.1 - PCBS ............................................................................................................................. 113
A.2.2 - FUSES ........................................................................................................................... 114
A.2.3 - CABLES......................................................................................................................... 114
A.2.4 - OTHER SPARES ........................................................................................................... 114
A.3 - FUSE RATINGS AND POSITIONS ........................................................................................ 114
Figure 1 -Theoretical Crossing ........................................................................................................ 25
Figure 2 - Ped Demand Processing ................................................................................................ 39
Figure 3 - ST750 in Small Outer Case with Detector Swing Frame ................................................. 43
Figure 4 - ST750 in Small Outer Case configured with optional 11" Swing Frame ........................... 44
Figure 5 - ST750 in Large Outer Case configured with optional 19" Swing Frame ........................... 45
Figure 6 - ST750 Rack Assembly.................................................................................................... 46
Figure 7 - CPU and Phase Driver Cards ......................................................................................... 47
Figure 8 - I.O Expansion Card ........................................................................................................ 47
Figure 9 - CPU LEDs ....................................................................................................................... 48
Figure 10 - Master Switch Assembly ............................................................................................... 49
Figure 11 - Mains Dimming Transformer......................................................................................... 50
Figure 12 - Manual Panel (full panel shown) ................................................................................... 51
Figure 13 - Single Detector Backplanes .......................................................................................... 51
Figure 14 - Detector Swing Frame .................................................................................................. 52
Figure 15 - Detectors in 11" Swing Frame ....................................................................................... 53
Figure 16 - Detectors in a 19" Swing Frame .................................................................................... 53
Figure 17 - 2A Detector Supply Kit .................................................................................................. 54
Figure 18 - Gemini in a Detector Swing Frame ................................................................................ 54
Figure 19 - Gemini in an 11" Swing Frame ...................................................................................... 55
Figure 20 - Gemini in a Large Outer Case ....................................................................................... 56
Figure 21 - Freestanding TC12 OTU in Small Outer Case ............................................................... 58
Figure 22 - Free Standing TC12 OTU in Large Outer Case ............................................................. 59
Figure 23 - Dimming Transformer Tap Selection ............................................................................. 62
Figure 24 - Stool Installation, Small Cabinet .................................................................................... 65
Figure 25 - Stool Installation, Large Cabinet .................................................................................... 67
Figure 26 - Termination of Armoured CAble to CET bar .................................................................. 69
Figure 27 - Allocation of Red Lamp Monitor Channels for ST750 Controllers without LV CLS (NLM)
monitoring ................................................................................................................................ 76
667/HB/33750/000
Table of Figures
Page 9
ST750 G H
ENERAL ANDBOOK
Issue 6