TM 11-6625-444-14-2
(2) Select the 20 V range and DC/DC RA-
(6) Increase the input signal from the dc
TIO function on the voltmeter.
voltage calibrator to +1.07 Vdc. The voltage at
A9-U50, pin 12 should read +5 volts.
(3) Apply a +1.05 Vdc signal from the dc
voltage calibrator to the V/LO EXTERNAL REF-
(7) Decrease the input signal from the dc
ERENCE terminals.
voltage calibrator to +1.03 Vdc. The voltage at
A9-U50, pin 12 should read -15 volts.
(4) Set the digital multi meter (A5) to the
20 Vdc range. Remove the top cover of the
test lead to
guard cage and connect the V-
g. Auto Up Range Detector Adjustment (A9-
A9-U50, pin 12 on the voltmeter. (See figure
R51)
6-22. )
(1) Connect the equipment as shown in
Change the digital multi meter
(5) Adjust A9-R57 until the voltage at A9-
U50, pin 12 just switches from +5 V to -15 V (or
test lead to monitor the voltage at A9-U50,
V/
from -15 V to +5 V).
pin 10.
