TB 9-6625-2173-24
(9) Press and hold TRIG VIEW pushbutton in and adjust R3110 (fig. 7) to position
bottom of displayed waveform to one half major graticule division above point where wave
form just loses triggering (R).
(10) Position TRIGGERING LEVEL control fully cw.
(11) Press and hold TRIG VIEW pushbutton in and adjust R3115 (fig. 7) to position
bottom of displayed waveform one half major graticule division below point where
waveform just loses triggering (R).
a. Performance Check
(1) Position TI controls as listed in (a) through (f) below:
(a) SECOND/DIV switch to .2 ms.
(b) DISPLAY switch to CH 1.
(c) CH 1 VOLTS/DIV switch as needed.
(d) TRIGGERING SOURCE switch to CH1.
(e) TRIGGERING MODE to AUTO.
(f) PULL X10 HORIZ MAG switch to in position.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1
using 50 : feedthrough termination.
(4) Adjust TRIGGERING LEVEL and horizontal POSITION controls to align 2d
time marker with 2d vertical graticule line.
(5) Rotate oscilloscope calibrator EDIT FIELD knob to align one time marker per
division between 2d and 10th vertical graticule lines. If oscilloscope calibrator err display
readout does not indicate within r2%, perform b (1) through (2) below.
(6) Set TI SECOND/DIV switch to 1 Ps.
(8) Adjust TRIGGERING LEVEL and horizontal POSITION controls to align 2d
time marker with 2d vertical graticule line.
(9) Rotate oscilloscope calibrator EDIT FIELD knob to align one time marker per
division between 2d and 10th vertical graticule lines. If oscilloscope calibrator err display
readout does not indicate within r2%, perform b (3) through (4) below.
(10) Repeat technique of (6) through (9) above for oscilloscope calibrator MARKER
outputs and SECONDS/DIV switch settings listed in table 7. Oscilloscope calibrator err
display readout will be within limits as listed in table (7).