TB 9-6625-2173-24
CALIBRATION PROCESS FOR TEKTRONIX, TYPE SC501
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 manufacturers' manuals for this TI.
d. When indications specified in paragraphs 8 through 11 are not within tolerance,
perform the power supply check (paragraph 12) prior to making adjustments. If power
supply adjustment is made, repeat paragraphs 8 through 11. Do not perform power supply
check if all other parameters are within tolerance.
e. Unless otherwise specified, all control and control settings refer to the TI.
WARNING
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. Check that correct nominal line selector block has been installed on the line selector
pins on the power module and that the regulating range selected includes the input
line voltage.
b. Remove TI side covers and connect TI to power module, using extender cable.
c. Position controls as listed in (1) through (7) below:
(1) Vertical and horizontal POS controls to midrange.
(2) VARIABLE (vertical) control fully cw (X1).
(3) VARIABLE (time base) fully cw (X1).
(4) LEVEL/SLOPE to AUTO (centered and pulled out).
(5) TRIGGER switch to INT.
(6) mS pushbutton pressed to in position.
(7) All other pushbuttons released to out position.