TB 9-4931-503-24
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 manufacturers' manuals for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
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.
a. Remove TI protective covers and oscilloscope cabinet panels.
b. Install TI into oscilloscope right compartment.
c. Connect dual trace amplifier to oscilloscope left compartment using extender.
d. Connect oscilloscope to a 115 V ac source and energize. Allow 30 minutes for warm-up.
e. Press dual trace amplifier pushbuttons as listed in (1) through (5) below:
(1) DISPLAY ON pressed.
(2) MODE CH 1 pressed.
(3) CH 1 VOLTS/DIV switch to .5.
(4) TRIGGER CH 1 pressed.
(5) All remaining pushbuttons released (out).
f. Position TI controls as listed in (1) through (9) below:
(1) POSITION control to midrange.
(2) MAIN SEC/DIV switch to AMP.
(3) MAIN VARIABLE CAL control fully cw to detent.
(4) DELAY TIME MULT dial to 1.00.
(5) DISPLAY MODE MAIN SWP pushbutton pressed.
(6) AUTO TRIG pushbutton pressed.
(7) +SLOPE pushbutton pressed.
(8) TRIG SOURCE EXT pushbutton pressed.
(9) All remaining pushbuttons released (out).
g. Adjust oscilloscope INTENSITY and FOCUS controls for suitable viewing.
