50 Chapter2
Adjustment Procedures
Introduction
Introduction
This chapter contains information on automated and manual
adjustment procedures for the HP 8560E/EC spectrum analyzer.
Perform the automated procedures using the HP 85629B Tests and
Adjustment Module (TAM). Never perform adjustments as routine
maintenance. Adjustments should be performed after a repair or
performance test failure.
Introduction........................................................................... page 50
Safety Considerations......................................................... page 51
Which Adjustments Should Be Performed?....................... page 51
Test Equipment................................................................... page 51
Adjustable and Factory-Selected Components.................. page 51
Adjustment Tools ................................................................ page 52
Instrument Service Position............................................... page 52
Using the TAM...................................................................... page 57
Test Equipment................................................................... page 51
Adjustment Indicator.......................................................... page 57
1. High Voltage Power Supply Adjustment (8560E).......... page 60
2. Display Adjustment (8560E) .......................................... page 63
3. IF Bandpass Adjustment................................................ page 70
4. IF Amplitude Adjustments............................................. page 75
5. DC Log Amplifier Adjustments...................................... page 80
6. Sampling Oscillator Adjustment.................................... page 84
7. YTO Adjustment ............................................................. page 87
8. First LO Distribution Amplifier Adjustment................. page 91
9. Tracking Generator Power Level Adjustments (002).... page 94
10. Frequency Response Adjustment................................. page 97
11. Calibrator Amplitude Adjustment............................. page 101
12. 10 MHz Reference Adjustment-TCXO (Option 103). page 103
13. Demodulator Adjustment ........................................... page 105
14. External Mixer Bias Adjustment............................... page 108
15. External Mixer Amplitude Adjustment..................... page 110
16. Signal ID Oscillator Adjustment (prefix<3517A)...... page 114
17. 10 MHz Reference Adjustment-OCXO....................... page 118
18. Tracking Oscillator Adjustment (Option 002)........... page 122
19. 16 MHz PLL Adjustment............................................ page 126
20. 600 MHz Reference Adjustment (prefix> 3406A)...... page 130
NOTE Before performing any adjustments, allow the instrument to warm up
for 5 minutes.
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