TM-11-6625-542-14-1

• ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL FOR ELECTRONIC MARKET GENERATOR
• WARNING
• TABLE OF CONTENTS
• TABLE OF CONTENTS
• LIST OF ILLUSTRATIONS
• LIST OF TABLES
• Figure 1-1. Electronic Marker Generator AN/USM-108A.
• CHAPTER 1 INTRODUCTION
• Output Signal Values
• CHAPTER 2 SERVICE UPON RECEIPT OF EQUIPMENT AND INSTALLATION
• Figure 2-1. Packaging diagram.
• Section II. INSTALLATION
• Figure 2-2. Converting from 117 volts to 234 volts operation.
• CHAPTER 3 OPERATING INSTRUCTIONS
• Table 3-1. Operator Controls and Indicators
• Section II. OPERATION UNDER USUAL CONDITIONS
• Section II. PREVENTIVE MAINTENANCE AND TROUBLESHOOTING
• Table 4-1. Operator Daily and Weekly Preventive Maintenance Checks and Services
• Table 4-3. Organizational Quarterly Preventive Maintenance Checks and Services
• Figure 4-1. Electronic Marker Generator AN/USM-108A, rear view.
• CHAPTER 5 FUNCTIONING OF EQUIPMENT
• Amplifier and Cathode Follower
• 50 MC Multiplier
• Pushbutton Switches
• CHAPTER 6 GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
• Section II. TROUBLESHOOTING PROCEDURES
• Sectionalization Testing
• Figure 6-1. Pin voltages, left side.
• Figure 6-2 (1). Pin voltages, right side (sheet 1 of 2).
• Figure 6-2 (2). Pin voltages, right side (sheet 2 of 2).
• Table 6-2. Troubleshooting
• Electron Tube Replacement Techniques
• Figure 6-3. Tube locations, right side.
• Section III. REPAIRS AND ADJUSTMENTS
• Replacement of Parts
• Figure 6-5 (1). Parts identification location (sheet 1 of 1).
• Figure 6-5 (2). Par t identification location (sheet 2 of 11).
• Figure 6-5 (3). Parts identification location (sheet 3 of 11).
• Figure 6-5 (4). Parts identification location (sheet 4 of 11).
• Figure 6-5 (5). Parts identification location (sheet 5 of 11).
• Figure 6-5 (6). Parts identification location (sheet 6 of 11).
• Figure 6-5 (7). Parts identification location (sheet 7 of 11).
• Figure 6-5 (8). Parts identification location (sheet 8 of 11).
• Figure 6-5 (9). Parts identification location (sheet 9 of 11).
• Figure 6-5 (10). Parts identification location (sheet 10 of 11).
• Figure 6-5 (11). Parts identification location (sheet 11 of 11).
• Voltage Measurements
• Sine Wave Adjustments
• CHAPTER 7 GENERAL SUPPORT TESTING PROCEDURES
• Table 7-2. Power Supply Voltage Measurements
• Table 7-4. Divider Circuits Measurements
• 1 MC Oscillator Test
• Table 7-8. Required Waveshapes 7-5
• APPENDIX A REFERENCES
• APPENDIX C MAINTENANCE ALLOCATION
• Tool and Test Equipment Requirements
• Section II. MAINTENANCE ALLOCATION CHART
• TABLE 1. TOOL AND TEST EQUIPMENT REQUIREMENTS
• Figure 5-1. Functional block diagram.
• Figure 5-2. Power supply schematic diagram.
• Figure 5-3. Oscillator and multiplier, schematic diagram.
• SCHEMATIC DIAGRAM
• Figure 5-6. Intermediate frequency dividers, schematic diagram.
• Figure 5-7. High frequency dividers, schematic diagram.
• Figure 5-8. Tigger cathode follower and switching, schematic diagram.
• TM-11-6625-542-14-1
• BLANK PAGE
• Distribution
• RECOMMENDED CHANGES TO EQUIPMENT TECHNICAL PUBLICATIONS

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