HP 83522A Service Notes page 89

Adjustments
Model 83522A
ADJUSTMENTS
5-26. F M DRIVER (Cont'd)
2. Place A5 FM Driver on extender board.
3. Connect DVM between A5 board connector pin 21 and A5TP7 (ground). (See Figure 5-
30.) Adjust A5R19 "FM OFFSET control for zero Vdc +1 mVdc.
FM OFFSET HI LO
A5R19 A5 R75 A5C14
GROUND
A5TP7
HI FREQ. FM
OUTPUT PI-21
SELECTED VALUE
A5R31"
Figure 5-30. A5 FM Driver Adjustment Location
4. Disconnect DVM from test points, remove extender board, and reinstall A5 FM Driver
in instrument.
5. Set instrument controls as follows:
8350A SWEEP OSCILLATOR
CW FREQUENCY..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 GHz
FREQUENCY Sweep Mode.
. . . . . . . . . . . . . . . . . . .
Pres
CW VERNIER.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SWEEP TRIGGER.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INT
RF BLANK..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OFF
83522A RF PLUG-IN
POWER LEVEL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+
13 dBm
CW FILTER
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OFF
ALC MODE..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INT
Configuration switch A3S1 on Digital Interface board (Table 5-6) set as follows: