TB 9-6625-2173-35
(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 Ω feedthrough termination.
(3) Set oscilloscope calibrator MARKER output to 0.2 ms.
(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 2%, perform b (1) through (2) below.
(6) Set TI SECOND/DIV switch to 1 s.
(7) Set oscilloscope calibrator MARKER output for 1 s.
(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 2%, 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).