HP 8566B Adjustment Manual page 305

25. Adjust A6A9AlR38 BALANCE for a dead time between
consecutive voltage ramps of 3.5 f 0.1 msec. Each voltage ramp
should have a "flattened" top and reach a maximum voltage
of approximately +3.7 Vdc. The minimum voltage between
consecutive voltage ramps should be approximately -24.4 Vdc.
26. Set the spectrum ananlyzer LINE switch to STANDBY. Disconnect
the oscilloscope from the RF Section A6A9J4 VCO TUNE.
Disconnect cable 0 (black) from A6A9J2 CAL OUTPUT, the cable
85 (gray/green) from A6A9J3 100 MHz INPUT, and cable 5 (green)
from A6A9J5 3.3 GHz INPUT.
27. Remove the A6A9 Phase Lock Assembly from the extender board,
and remove the extender board from the RF Section. Reinstall the
28. Disconnect cable 84 (gray/yellow) from A6A12Jl and the cable 82
(gray/red) from A6A12J2. Replace the cover to the A6 RF Module,
and then reconnect cable 84 (gray/yellow) to A6A12Jl and cable
82 (gray/red) to A6A12J2.
29. Reconnect cable 2 (red) to A6A9Jl 300 MHz OUTPUT, cable 0
(black) to A6A9J2 CAL OUTPUT, cable 85 (gray/green) to A6A9J3
100 MHz INPUT, cable 4 (yellow) to A6A9J4 VCO TUNE, and cable
5 (green) to A6A9J5 3.3 GHz INPUT on the A6A9 Phase Lock
Assembly.
30. Perform adjustment procedure 19, "CAL Output Adjustment".
18. RF' Module Phase Lock Adjustments
Adjustments 3-165