TM-11-6625-3017-14

• ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST
• SAFETY STEPS TO FOLLOW IF SOMEONE IS THE VICTIM OF ELECTRICAL SHOCK
• TABLE OF CONTENTS
• TABLE OF CONTENTS
• TABLE OF CONTENTS
• LIST OF ILLUSTRATIONS
• SECTION I. INTRODUCTION
• Fig. 1-1. FM/AM Modulation Meter ME-505/U
• DATA SUMMARY
• DATA SUMMARY
• DATA SUMMARY
• Fig. 1-4. Typical demodulated a.m. frequency response.
• ACCESSORIES
• SECTION 2 OPERATION
• Battery operation
• Fig. 2-2. Front panel controls
• PREPARATION FOR USE
• MEASURING AM. DEPTH
• NOISE MEASUREMENTS
• Fig. 2-4. Typical modulation meter noise levels
• Variable oscillator
• Crystal-controlled oscillator
• CRYSTAL SELECTION
• F.M. STEREO MEASUREMENTS
• Fig. 2-6. Test arrangement for measuring distortion
• Fig 2-8. Oscillograms of composite signal
• STRAY FIELDS
• DECIBEL CONVERSION TABLE
• DECIBEL CONVERSION TABLE (continued)
• SECTION 3 TECHNICAL DESCRIPTION
• Fig. 3-2. Operation of discriminator
• LOCAL OSCILLATOR (Unit A2a-Fig. 7-2)
• DISCRIMINATOR (Unit A5-Fig. 7-3)
• LOW-PASS FILTERS (Units A6 and A8-Fig. 7-3)
• PEAK READING METER (Unit A10-Fig. 7-4)
• SECTION 4 MAINTENANCE
• Fig. 4-1. units and parts location (top)
• Fig. 4-2. Units and parts location (bottom)
• Table 4.1. Test Equipment Required.
• I.F. output and frequency
• A.M. depth accuracy
• Fig. 4-5. F.M. distortion measurement
• CLEANING AND LUBRICATING
• Fig. 4-8. Oscillator lubrication points
• SECTION 5 REPAIR
• WAVEFORMS
• Fig. 5-1. Oscillograms
• TABLE 5.2 Test Equipment Required for Realignment
• Local oscillator
• Fig. 5-3. Location of discriminator output lead.
• A.M. and l.f. response
• REPLACEMENT OF SUB-ASSEMBLIES
• Fig. 5-4. Fitting drive cord
• Fig. 5-5. Parts location, Mixer TM 7723
• Fig. 5-6. Parts location, Oscillator Board TM 7705
• Fig. 5-7. Parts location, Doubler and Generator Board TM 7706
• Fig. 5-8. Parts location, I.F. Amplifier ATM 7132
• Fig. 5-9. Parts location, Limiter ATM 7285
• Fig. 5-10. Parts location, Discriminator ATM 7780
• Fig. 5-11. Parts location, 1st L.F. Amplifier ATM 7223
• Fig. 5-12. Parts location, 2nd L.F. Amplifier ATM 8806
• Fig. 5-13. Parts location, Peak Reading Voltmeter ATM 8805
• Fig. 5-14. Parts location, A.M. Defector ATM 7276
• Fig. 5-15. Parts location, Calibrator ATM 7620
• Fig. 5-16. Parts location, Power Supply Board ATM 7225
• Fig. 5-17. Parts location, Component Board ATM 8742
• APPENDIX A REFERENCES
• SECTION 6 CIRCUIT DIAGRAM
• APPENDIX B MAINTENANCE ALLOCATION
• Explanation of Format
• SECTION II. MAINTENANCE ALLOCATION CHART
• SECTION III. TOOL AND TEST EQUIPMENT REQUIREMENTS
• SECTION IV. REMARKS
• FO Fig. 6-1. Chassis inter-unit wiring
• FO Fig. 6-2. Mixer, oscillator and i.f. amplifier
• FO Fig. 6-3. Limiter, discriminator and 1st l.f. amplifier
• FO Fig. 6-4. 2nd l.f. amplifier and peak reading voltmeter
• FO Fig. 6-5. A.M. detector and calibrator
• FO Fig. 6-6. Power supply unit
• RECOMMENDED CHANGES TO EQUIPMENT TECHNICAL PUBLICATIONS
• TM-11-6625-3017-14
• BLANK PAGE
• DISTRIBUTION

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