HP 83522A - Page 60

Model 83522A Adjustments
ADJUSTMENTS
5-1 5. -1 0 V REFERENCE ON A6 YO DRIVER (Cont'd)
DESCRIPTION:
The -lOV REF in A6 is used as a reference voltage for the OFFSET DAC in A6, and in A4
ALC board, it is used as OFFSET REF for the power level reference circuit.
EQUIPMENT:
Sweep Oscillator
..................................................... HP 8350A
Digital Voltmeter (DVM) ............................................. HP 3455A
PROCEDURE:
1. Connect DVM to
A6TP3 (-10V REF) and common to A6TP5 (Figures 5-3 and 5-4).
2.
Adjust "-10" control A6R21 for -10.000 Vdc k0.001 Vdc.
SWEEP
OSCILLATOR
1 1
DIGITAL VOLTMETER
Figure 5-3. -1 0 Volt Reference Test Setup
GND ANLG
-lOV
REF
A6TP5
-1 0
A6R21 A6TP3 /
Figure
'ion