Rf Module Phase Lock Adjustments - HP 8566B Adjustment Manual

RF-Section:
The 3.3 GHz Heterodyne Phase Lock Loop sampler circuits and 300
MHz Tripler circuits on the A6A9 Phase Lock Assembly are adjusted
and checked for proper operation. The match between the Sampler
Driver circuit and the A6A9Ul Sampler is adjusted. Then, the output
balance of the A6A9Ul Sampler is set. A second spectrum analyzer is
used to adjust the output match between the Tripler circuit and the
300 MHz Power Amplifier. Tripler match is adjusted for maximum 300
MHz output signal with all harmonics more than 15 dB down.
Spectrum Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8566B
Digitizing Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 545OlA
Digital Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 3456A
15x2 Extender Board (service accessory) . . . . . . . . . . . . . . . .08505-60041
BNC 50-ohm Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 11593A
Cables:
BNC to SMB Cable (service accessory) . . . . . . . . . . . . .85680-60093
1. Set the spectrum analyzer LINE switch to STANDBY. Turn the
spectrum analyzer over to position the RF Section on top, as
shown in Figure 3-81, and remove the RF Section bottom cover.
2. In the RF Section, disconnect the cable 84 gray/yellow from
cover from the A6 RF Module, and then reconnect the cable 84
(gray/yellow) to A6A12Jl and the cable 82 (gray/red) to A6A12J2.
Refer to Figure 3-82 for the location of the A6A12 YTX Driver
Assembly and the A6 RF Module.
discharge (ESD). Be sure to use proper grounding techniques when
handling A6A9 Phase Lock assembly and when disconnecting
and connecting cables to A6A9J5 3.3 GHz INPUT and test points