TB 9-6625-1982-24
(9) Repeat technique of (6) and (7) above at 60 MHz, and 80 MHz. Signal generator
will indicate <175 mV rms.
b. Adjustments. No further adjustments can be made.
27. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
CALIBRATION PROCESS FOR TEKTRONIX, TYPE DC504A
28. Preliminary Instructions
a. The instructions outlined in paragraphs 28 and 29 are preparatory to the calibration
process. Personnel should become familiar with the entire section before beginning the
calibration.
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.
29. 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 checks where applicable.
a. Position controls as listed in (1) through (4) below.
(1) FUNCTION switch to FREQ TO 10 MHz.
(2) TIME/AVGS to 10 SEC/1000, change as required.
(3) All buttons in OUT position.
(4) TRIGGER LEVEL control to midrange.