Test 11. Sweep Time Accuracy
...........
2-103
Test 12. Noise Sidebands Test
............
2-104
Test 13. Line-Related Sidebands
...........
2-105
Test 14. Average Noise Level
............
2-106
Test 15. Residual Responses
.............
2-107
Test 16. Harmonic And Intermodulation Distortion . . 2-108
Test 17. Image, Multiple, and Out-of-Band Responses . 2-109
Test 18. Gain Compression
.............
2-l 11
Test 19. 1st LO Output Amplitude
..........
2-112
Test 20. Sweep + Tune Out Accuracy
........
2-113
Test 21. Fast Sweep Time Accuracy (< 20 ms)
....
2-l 14
Test 22. Frequency Reference Error Test
.......
2-115
3-l
3-2
3-2
3-2
3-3
3-3
3-3
3-25
3-31
3-41
3-48
3. Adjustments
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. 10 MHz Standard Adjustment (SN 2637A and
Below)
.....................
12. 10 MHz Standard Adjustment (SN 2728A and
Above)
.....................
13. Sweep, DAC, and Main Coil Driver Adjustments . .
14. 100 MHz VCXO Adjustments
...........
15.
MN
Loop Adjustments
.............
16.
YT.0
Loop Adjustments
.............
17.
20/30
Loop Phase Lock Adjustments
.......
18. RF Module Phase Lock Adjustments
.......
19. CAL Output Adjustment
.............
20. Last Converter Adjustments
...........
2 1. Frequency Response Adjustments
........
22. Analog-To-Digital Converter Adjustments
.....
23. Track and Hold Adjustments
............
24. Digital Storage Display Adjustments
.......
Low-Noise DC Supply
................
3-56
3-63
3-65
3-69
3-73
3-76
3-82
3-89
3-94
3-100
3-104
3-108
3-113
3-126
3-132
3-135
3-146
3-160
3-166
3-169
3-174
3-206
3-209
3-212
3-218
Contents-2
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