TB 9-6625-2024-24
(1) Set TIME/DIV OR DLY TIME switches to 1 ms (PUSH FOR DLY'D).
(2) Turn VARIABLE control fully cw (to detent).
(3) MAIN TRIGGERING as listed in (a) through (d) below:
LEVEL control to midrange.
(a)
MODE pushbutton to NORM.
(b)
COUPLING pushbutton to DC.
(c)
SOURCE pushbutton to INT.
(d)
(4) DLY'D TRIG pushbuttons as listed in (a) through (c) below:
(a) SLOPE to + (positive) (IN).
(b) COUPLING to AC (IN).
(c) SOURCE to INT (IN).
(5) POSITION and FINE controls to midrange.
(6) MAG pushbutton to X1 (IN).
(7) DELAY TIME MULT dial to 1.0.
(8) DLY'D TRIG to RUNS AFTER DLY TIME (fully cw).
d. Insert vertical amplifier in left vertical compartment.
e. Energize equipment and allow at least 15 minutes for warm-up.
21. Sweep Length, Magnifier Gain, and Timing
a. Performance Check
(1) Set vertical amplifier VOLTS/DIV switch to .5 V.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to vertical
amplifier input.
(3) Set oscilloscope calibrator MARKER output for 1 ms. If display on oscilloscope
does not indicate 1 marker per division and a trace length of at least 10.4 divisions,
perform b (1) and (2) below.
(4) Pull out DLY TIME switch to .2 ms and PUSH FOR DLY'D. If delayed sweep
length is not at least 10.4 divisions, perform b (3) below.
(5) Set DLY TIME switch to 1 ms and PUSH FOR DYL'D.
(6) Press and release MAG pushbutton to X10 (OUT) position.
(7) Set oscilloscope calibrator MARKER output for 0.1 ms.
NOTE
Tolerances in parenthesis are for TD1159/U and 7B53A and
7B53AN OPT 5 and OPT 11S.
(8) Adjust POSITION control to align 2d marker on 2d vertical graticule line.
Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton to align 10th
