TB 9-6625-2346-35
6. Preliminary
Instructions
a. The
instructions outlined in
paragraphs 6 and
7 are preparatory to the
calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
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 manuals for this TI.
d.
When indications specified in
paragraphs 8 through 12 are not within
tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 12. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to TI.
HIGH VOLTAGE is used or exposed during the performance of
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 protective cover from TI only when necessary to make adjustments.
Replace cover after completing the adjustments.
b. Connect TI to a 115 V ac source.
c. Position TI controls as listed in (1) through (22) below:
(1) INTENSITY A and B fully ccw.
(2) ⇕ POSITION to midrange.
(3) ⇦POSITION⇨ to midrange.
(4) VERTICAL MODE CH 1 BOTH CH 2 to CH1.
(5) BW LIMIT 20 MHz pushbutton to out position.
(6) CH1 and CH2 VOLTS/DIV CAL fully cw to detent.
(7) CH2 INVERT pushbutton to out position.
(8) CH1 and CH2 AC GND DC switches to DC.