Technical data

4000 X-Series Oscilloscopes Service Guide 9
Figures
Figure 1. Constructing the 8-by-2 Connector 26
Figure 2. Setting Up Equipment for Digital Channel Threshold
Accuracy Test 30
Figure 3. Setting up Equipment for DC Vertical Gain Accuracy
Te s t 36
Figure 4. Using a Blocking Capacitor to Reduce Noise 38
Figure 5. Setting up Equipment for Dual Cursor Accuracy Test 42
Figure 6. Using a Blocking Capacitor to Reduce Noise 44
Figure 7. Setting Up Equipment for Bandwidth (-3 dB) Verification
Te s t 47
Figure 8. Setting Up Equipment for Internal Trigger Sensitivity
Te s t 55
Figure 9. Setting Up Equipment for 4-Channel External Trigger
Sensitivity Test 58
Figure 10. User Calibration cable for 2-channel oscilloscope 68
Figure 11. User Calibration cable for 4-channel oscilloscope 69
Figure 12. Default setup screen 78
Figure 13. Example pulses 80
Figure 14. Setup for troubleshooting internal assemblies 84
Figure 15. System Board Test Points/Connectors - Top Side,
Left 87
Figure 16. System Board Test Points/Connectors - Top Side,
Right 88
Figure 17. Verify line filter board AC output 91
Figure 18. Verify power switch operation 93
Figure 19. Location of the Fan Connector 98
Figure 20. Removing the handle 102
Figure 21. Removing adjustable legs 103
Figure 22. Removing the cabinet 104
Figure 23. Removing the BNC securing nuts and washers 105