Apex Digital HT-170 Especificações descarregar pdf (Página 118)

APEX™ Exciter Incorporating FLO™ Technology

Maintenance and Troubleshooting Exciter Maintenance

Page: 5-2 888-2604-001 03/08/07

WARNING: Disconnect primary power prior to servicing.

8439153013A.PLT

Figure 5-1 Top View of Exciter (Analog Side) With Cover Removed

1 2 ... 113 114 115 116 117 118 119 120 121 122 123 ... 147 148

TECHNICAL MANUAL 1
Exciter 1
888-2604-001 1
Returns And Exchanges 2
Unpacking 2
Technical Assistance 2
Replaceable Parts Service 2
2604ti.fm 5
FIRST-AID 9
REFERENCE 9
Table of Contents 11
Page: x 888-2604-001 03/08/07 12
2604s100TOC.fm 13
List of Figures 17
2604s100LOF.fm 19
List of Tables 21
1Introduction 23
1.3 Physical Description 24
2604s100.fm 25
1.4 Technical Overview 26
1.5 Specifications 26
Specifications Introduction 27
Introduction Specifications 28
2 Installation 29
2.3.1 AC Power 30
2.5.1 Feedback Requirements 31
2604s200.fm 33
2.6 Configuring the Exciter 35
2.7 Materials Needed 39
Installation Materials Needed 40
3.1 Basic Operating Procedure 41
2604s300.fm 43
3.2.4 FLO Measure Soft Key 44
3.3 LCD Display Flow Chart 44
System Setup Screen 45
System Status Screen 45
3.4.1 System Status Screen 48
3.4.5.2.1 PLL Diagnostics 61
3.4.6.3 CAN Bus Status Screen 70
3.4.6.3.1 CAN Diagnostics 70
3.4.6.5 GPS Status Screen 71
3.5 Built In Tests 72
3.6.2 Exciter Setup Screen 75
in hertz. The 76
3.6.2.1 Power Calibration 78
3.6.3 RTAC Setup Screen 78
3.6.3.1 Filter Type 80
3.6.3.2 Max Peak Stretch 80
3.6.3.3 RTAC Power On Mode 80
3.6.3.4 RTAC Off Air Mode 81
3.6.4 Display Setup Screen 81
3.6.5.2 RF Present Cutoff 83
3.6.7 FPGA Setup 88
3.6.7.1 FPGA Configure 1/5 88
3.6.7.2 FPGA Configure 2/5 89
3.6.7.3 FPGA Configure 3/5 90
3.6.7.4 FPGA Configure 4/5 91
3.6.9 Restore Defaults 95
3.7.5 From RTAC Setup Screen 97
4 Theory of Operation 99
4.3.1 Controller Board Theory 101
2604s400.fm 103
4.4.3 PLL Board - A4 108
4.4.3.1 10 MHz Reference 108
4.4.4 Output Amplifier 111
4.5 DC Power Distribution 112
4.5.1 Main Power Supply 112
4.5.2 Digital Deck Power 112
4.5.2.6 Front Panel Board 114
4.5.3 Analog Deck Power 114
4.5.3.4 PLL Board Power 115
4.5.3.6 Output Amplifier 116
Exciter Maintenance 117
8439153013A.PLT 118
2604s500.fm 119
5.2 Loading Software 125
Exciter Setup Screen? 128
Transmitter Fails Mask Test 130
5.6 General Troubleshooting 132
5.6.1 Troubleshooting Tips 132
5.7 System Troubleshooting 133
5.8 Exciter Troubleshooting 135
5.8.1 Frequency Error 135
5.8.2 Dark Screen 135
5.8.3 Power Supply Voltages 136
5.8.6.1 Modulator Board 139
5.8.6.3 ADC and DAC Boards 140
5.8.6.4 Front Panel Board 140
5.8.6.5 Controller Board 140
RBW 30 kHz 142
SWT 30 ms 142
VBW 30 kHz 142
Att 25 dBRef -1 dBm 142
6Parts List 143
Parts List 144
Exciter GUI Screen Captures 145
2604sapa.fm 145

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