HP 83522A - Page 89

Adjustments
Model
83522A
ADJUSTMENTS
5-26. FM 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: