Al3 P/Ar Filter And Latch Adjustments; Adjustments(0Pt.s 001 & 003) - HP 4935A Operating And Service Manual

Al3 P/AR Filter and Latch Adjustments (Options 002 and 003)
Oscilloscope
1.
external horizontal input - not the external trigger input.
This setup will display lissajous pattens which are used to adjust the P/AR filter.
If' an adjustment is needed, a rising slope oval waveshape is produced.
When adjusted, a single diagonal line will appear.
Externally loop the 4935A TRMT and RCV 310 jacks.
4 .
Adjust the OIJTPUT IXVEI, for a left display of 0.0 dBm.
Set the Oscilloscope to 0.2 volts per division. (:onnect channel A to TP15 pin 2 and channel B to
Adjust Al :IRlX~ (PAR PHASE 1) to obtain a 0 degree phase (close the waveshape loop).
7.
Move Oscilloscope channel A probe to TPI5 pin 8.
Adjust AlZIK175 (I'AR I'HASK 2) to obtain a 0 degree phase difference.
10.
Adjust A13R186 (f'AR IlET) until the display reads 100.
ADJUSTMENTS
. . . . HP 174112 with I:1 probes
Model 4935A