Section I. INTRODUCTION - TM-11-6625-535-24P0003How to Locate Repair Parts - TM-11-6625-535-24P0004Figure 1. Oscilloscope AN/USM-140A.Figure 2. Oscilloscope Assembly OS-121/USM-140A, Location of Subassemblies.Figure 3. Oscilloscope Assembly OS-121/USM-140A (Sheet 1 of 5).Figure 3. Oscilloscope Assembly OS-121/USM-140A (Sheet 2 of 5).Figure 3. Oscilloscope Assembly OS-121/USM-140A (Sheet 3 of 5).Figure 3. Oscilloscope Assembly OS-121/USM-140A (Sheet 4 of 5).Figure 3. Oscilloscope Assembly OS-121/USM-140A (Sheet 5 of 5).Repair Parts List - TM-11-6625-535-24P0012Repair Parts List - TM-11-6625-535-24P0013Repair Parts List - TM-11-6625-535-24P0014Figure 4. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board A1.Repair Parts List - TM-11-6625-535-24P0016Figure 5. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board A2.Repair Parts List - TM-11-6625-535-24P0018Figure 6. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board A3Figure 7. Oscilloscope Assembly OS-121/USM-140A, Switch Assembly A100.Figure 8. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A101. EL3GCO2Repair Parts List - TM-11-6625-535-24P0022Repair Parts List - TM-11-6625-535-24P0023Figure 9. Oscilloscope Assembly OS-121/USM-140A, Switch Assembly A102.Figure 10. Oscilloscope Assembly OS-121/USM-140A, Switch Assembly A200.Figure 11. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A201Figure 12. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A202.Repair Parts List - TM-11-6625-535-24P0028Figure 13. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A203.Figure 14. Oscilloscope Assembly US-IZI/USM-14UA, Switch Assembly aye.Figure 15. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A301.Repair Parts List - TM-11-6625-535-24P0032Figure 16. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A302.Figure 17. Oscilloscope Assembly Os-121/USM-140A, Etched Circuit Board Assembly A401.Figure 18. Oscilloscope Assembly OS-121/USM-140A, Etched Circuit Board Assembly A402.Repair Parts List - TM-11-6625-535-24P0036Figure 19. Oscilloscope Assembly OS-121/USM-140A, Switch Assembly A1000.Repair Parts List - TM-11-6625-535-24P0038Figure 20. Preamplifier, Dual Trace MX-2930A/USHl (Sheet 1 of 2).Figure 20. Preamplifier, Dual Trace MX-2930A/USHl (Sheet 2 of 2).Repair Parts List - TM-11-6625-535-24P0041Figure 21. Preamplifier, Dual Trace MX-2930A/USM, Switch Assembly, Mode A500.Figure 22. Preamplifier, Dual Trace MX-2930A/USM, Etched Circuit Board A501.Repair Parts List - TM-11-6625-535-24P0044Figure 23. Preamplifier, Dual Trace MX-2930A/USM, Etched Circuit Board A502.Repair Parts List - TM-11-6625-535-24P0046Figure 24. Preamplifier, Dual Trace MX-2930A/USM, Attenuator Assembly, Channel A A1500.Repair Parts List - TM-11-6625-535-24P0048Figure 25. Preamplifier, Dual Trace MX-2930A/USM, Attenuator Assembly, Channel B A1501.Figure 26. Preamplifier, Dual Trace MX-2930A/USM, Switch Assemblies.Repair Parts List - TM-11-6625-535-24P0051Figure 27. Auxiliary Plug-In MX-3078/USM.NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0053NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0054NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0055NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0056NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0057NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0058NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0059NATIONAL STOCK NUMBER AND PART NUMBER INDEX - TM-11-6625-535-24P0060TM-11-6625-535-24P - index