Specifications

TABLE OF CONTENTS
SECTION I DESCRIPTION
1-1 General 3
1-4 Specifications 3
SECTION II INSTALLATION
2-1 Fixed Installation 4
2-3 Mobile Installation 4
2-6 VFO Connection 4
SECTION III OPERATION
3-1 On/Off Switch 5
3-3 Display 5
SECTION IV THEORY OF OPERATION
4-1 General 6
4-3 Functional Description 6
4-7 Detailed Description 6
4-9 System Clock 6
4-12 Timing Signal Generation 7
4-14 Signal Sampling 7
4-14 Signal Sampling 7
4-16 Display 7
4-18 Reset 8
4-20 Power Supply 8
SECTION V MAINTENANCE
5-1 General 10
5-3 Calibration 10
5-5 Disassembly 10
5-6 Cover Removal 10
5-8 Circuit Board Removal 10
5-10 Display Removal 10
5-12 Troubleshooting 10
SECTION VI PARTS LISTS
6-1 General 17-18
LIST OF ILLUSTRATIONS
Figure 4-1 Block Diagram 9
Figure 4-2 Timing System Waveforms 9
Figure 5-1 Component Locations 15
Figure 5-2 Schematic Diagram 16
LIST OF TABLES AND CHARTS
Table 1-1 Specifications 3
Chart I Troubleshooting Guide 11
Chart II Troubleshooting, Unit Inoperative Display Lighted with 25.500 12
Chart III Troubleshooting, Timing System Inoperative 13
Table 6-1 Replaceable Parts List 17-18