TB 9-6625-1966-24
(2) Connect oscilloscope between TI 11th terminal (white-green wire to XA1 pin 15)
on rear of C wafer of RANGE selector switch and circuit ground, using probe.
(3) Adjust A3C8 (fig. 6) for minimum flatness on sawtooth waveform (R).
33. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
SECTION VI
CALIBRATION PROCESS FOR MODEL 3305A
34. Preliminary Instructions
a. The instructions outlined in paragraphs 34 and 35 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
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 t h e manufacturer's manual for this TI.
d. Unless otherwise specified, all control and control settings refer to the TI.
35. 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. Insert TI into function generator.
b. Set function generator CHANNEL A function switch to SINE and CHANNEL A
AMPLITUDE control to midrange.
c. Position controls as listed in (1) through (6) below:
(1) SWEEP MODE switch to MANUAL.
(2) START control fully ccw.
(3) STOP control fully ccw.
(4) MAN. START/MAN. STOP control fully ccw.
