RELEASED: 10/2/2006
Page 3
COMMUNICATI0NS
HSD SERIES OPERATION AND MAINTENANCE
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5.2 Recommended Test Equipment:..................................................................45
5.3 Troubleshooting:.........................................................................................46
5.4 Front Panel Indicators:................................................................................46
5.5 HSD-2500 TROUBLESHOOTING CHART......................................................47
5.6 Output Power Calibration: ...........................................................................49
5.6.1 Forward Power Calibration: ..................................................................50
5.6.2 Reflected Power Calibration:.................................................................51
5.7 Pre-Corrector Adjustment: ..........................................................................52
5.8 FREQUENCY PROGRAMMING: ....................................................................53
5.8.1 ITFS/MMDS Channel Programming: .......................................................54
5.8.2 EBS/BRS Channel Programming: ..........................................................55
5.9 Interpreting Amplifier Fault Indications: ......................................................56
5.10 Calibrating Voltage Indications:.................................................................57
6 PARTS LISTS ....................................................................................................58
7 SCHEMATIC DIAGRAMS....................................................................................73
8 OPERATING MANUAL RELEASE NOTES ...........................................................95
TABLE OF FIGURES
Figure 1: Up-Converter Interconnection Diagram ................................................74
Figure 2: Transmitter Interconnect Diagram........................................................75
Figure 3: 1st IF, Schematic Diagram ....................................................................76
Figure 4: 1st IF, Component Layout .....................................................................77
Figure 5: Output Converter, Schematic Diagram .................................................78
Figure 6: Output Converter, Component Layout...................................................79
Figure 7: Driver Amplifier, Schematic Diagram ....................................................80
Figure 8: Driver Amplifier, Component Layout .....................................................81
Figure 9: 10 MHz Reference, Schematic Diagram ................................................82
Figure 10: 10 MHz Reference, Component Layout................................................83
Figure 11: First Converter, Schematic Diagram ...................................................84
Figure 12: First Converter, Component Layout ....................................................85
Figure 13: Display Board, Schematic Diagram.....................................................86
Figure 14: Display Board, Component Layout ......................................................87
Figure 15: Control Board, Schematic Diagram.....................................................88
Figure 16: Control Board, Component Layout ......................................................89
Figure 17: 12.5 Watt Amplifier, Schematic Diagram .............................................90
Figure 18: 12.5 Watt Amplifier, Component Layout ..............................................91
Figure 19: Metering Detector, Schematic Diagram ..............................................92
Figure 20: Metering Detector, Component Layout................................................93
