TB 9-6625-1979-24
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
11. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
NOTE
Always ground TI to standard source being used in each
performance check.
a. Remove TI protective covers and connect input power connector to one of power
supply power out connectors.
b. Set power supply power switch to on and position TI controls as listed in (1) through
(3) below:
(1) 5O
TERM switch to INT.
(2) DC OFFSET switch to OFF.
(3) INPUT COUPLING switch to DC.
12. FET Bias, Output Zero, and Output Bias
NOTE
Steps (1) through (7) below apply only to serial numbers
B076839 and below that have not been modified with 040-1203-
01. Steps (8) through (23) below apply to TI's with serial
numbers above B076839 and TI's with serial numbers between
B010100 and B076839 that contain modification 040-1203-01.
a. Performance Check
(1) Set oscilloscope Vertical 1 input coupling switch to DC and vertical scale to
0.2 volts/div.
(2) Adjust oscilloscope sweep speed for a free-running trace.
(3) Adjust oscilloscope vertical position control to center trace on oscilloscope.
