TB 9-6625-2133-24
(4) Adjust calibrator for extreme right indication on TI meter scale. Calibrator will
indicate between +1.25 and +1.4 V dc.
(5) Reverse calibrator leads. Adjust calibrator for extreme left indication on TI
meter scale. Calibrator will indicate between -1.25 and -1.4 V dc. Disconnect calibrator
from TI and adjust dc power supply output fully ccw.
b. Adjustments. Adjust R22 (fig. 1) for an ALIGN indication on meter of TI (R).
Repeat technique of (2) through (5) above until no further adjustment is necessary.
12. Transmitter Current Test
a. Performance Check
(1) Disconnect dc power supply from INTERNAL BATTERY and connect to XMTR
BAT, observing polarity.
(2) Connect resistance standard to XMTR ALIGN upper right and lower left jacks.
(3) Set FUNCTION switch to XMTR RF.
(4) Adjust resistance standard to 50 .
(5) Disconnect multimeter from dc power supply output and connect across
resistance standard.
(6) Adjust dc power supply to obtain a full-scale deflection on TI meter. Multimeter
will indicate between 9.5 and 10.5 V dc or between -9.5 and -10.5 V dc.
(7) Adjust dc power supply output fully ccw.
b. Adjustments. No adjustments can be made.
13. Regulated Voltage Test
a. Performance Check
(1) Disconnect dc power supply from XMTR BAT, and connect to INTERNAL
BATTERY observing polarity.
(2) Disconnect multimeter from resistance standard and connect to dc power supply.
(3) Disconnect resistance standard from XMIT ALIGN connection and connect to
J11 (large hole positive and small hole negative) (fig. 2).
.
(5) Set FUNCTION switch to RCVR OSC.
(6) Adjust dc power supply for a 10 V indication on multimeter.
(7) Disconnect multimeter from dc power supply and connect across resistance
standard. Multimeter will indicate greater than 5.6 V dc.