HP 8568B Performance Tests And Adjustments Manual page 8

Test 11. Log Scale Switching Uncertainty Test
Test 12. Amplitude Fidelity Test . . . . . . . . . . .
Test 13. Average Noise Level Test . . . . . . . . . .
Test 14. Residual Responses Test . . . . . . . . . . .
Test 15. Spurious Responses Test
Test 16. Residual FM Test . . . . . . . . . . . . . .
Test 17. Line-Related Sidebands Test . . . . . . . . .
Test 18. Calibrator Amplitude Accuracy Test . . . . .
Test 19. Fast Sweep Time Accuracy Test (~20 ms)
Test 20. 1st LO Output Amplitude Test . . . . . . . .
Test 21. Frequency Reference Error Test . . . . . . .
Adjustments
3.
Introduction . . . . . . . . . . . . . . . . . . . . .
Safety Considerations . . . . . . . . . . . . . . . . .
Equipment Required . . . . . . . . . . . . . . . . .
Adjustment Tools . . . . . . . . . . . . . . . . . . .
Factory-Selected Components . . . . . . . . . . . . .
Related Adjustments . . . . . . . . . . . . . . . . .
Location of Test Points and Adjustments . . . . . . . .
1. Low-Voltage Power Supply Adjustments . . . . . .
2. High-Voltage Adjustment (SN 3001A and Below) . .
2. High-Voltage Adjustment (SN 3004A and Above) . .
3. Preliminary Display Adjustments (SN 3001A and
Below) . . . . . . . . . . . . . . . . . . . . .
3. Preliminary Display Adjustments (SN 3004A and
Above) . . . . . . . . . . . . . . . . . . . . .
4. Final Display Adjustments (SN 3001A and Below)
4. Final Display Adjustments (SN 3004A and Above) .
5. Log Amplifier Adjustments . . . . . . . . . . . .
6. Video Processor Adjustments . . . . . . . . . . .
7. 3 MHz Bandwidth Filter Adjustments . . . . . . .
8. 21.4 MHz Bandwidth Filter Adjustments
9. 3 dB Bandwidth Adjustments
10. Step Gain and 18.4 MHz Local Oscillator
Adjustments
11. Down/Up Converter Adjustments
12. Time Base Adjustment (SN 2840A and Below, also
32 17AO5568 and Above) . . . . . . . . . . . . .
12. Time Base Adjustment (SN 2848A to 3217A05567)
13. 20 MHz Reference Adjustments
14. 249 MHz Phase Lock Oscillator Adjustments
15. 275 MHz Phase Lock Oscillator Adjustment . . . .
16. Second IF Amplifier and Third Converter
Adjustment . . . . . . . . . . . . . . . . . . .
17. Pilot Second IF Amplifier Adjustments . . . . . .
18. Frequency Control Adjustments . . . . . . . . .
19. Second Converter Adjustments
20. 50 MHz Voltage-Tuned Oscillator Adjustments
2 1. Slope Compensation Adjustments
22. Comb Generator Adjustments . . . . . . . . . .
23. Analog-To-Digital Converter Adjustments . . . . .
24. Track and Hold Adjustments . . . . . . . . . . .
25. Digital Storage Display Adjustments . . . . . . .
Low-Noise DC Supply . . . . . . . . . . . . . . . .
. . . . . . . . . .
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. . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . .
. . . . 2-82
2-83
2-84
2-85
2-86
2-87
2-88
2-89
. . 2-90
2-91
2-92
3-2
3-2
3-2
3-3
3-4
3-4
3-25
3-29
3-39
3-45
3-52
3-59
.
3-61
3-65
3-69
3-72
. . . . . 3-77
3-84
3-87
3-92
3-95
3-99
3-103
3-107
. . .
3-110
3-112
3-116
3-119
3-123
3-130
. .
3-133
3-136
3-139
3-142
3-145
3-150