TB 9-6625-2139-35
(10) Adjust R754 (fig. 1) for 1 time marker per division (R).
(11) Set A AND B SEC/DIV switches to .2 ms.
(12) Set oscilloscope calibrator MARKER output to 1 mS/D.
(13) Adjust horizontal POSITION control to position middle time marker to center
vertical graticule line.
(14) Push X10 CAL control to in position.
(15) Adjust R749 (fig. 1) to position the middle time marker to the center vertical
graticule line.
(16) Pull X10 CAL control to out position and check that there is no horizontal shift
in time marker position.
(17) Repeat (13) through (16) above until no further improvement is noted.
(18) Set A AND B SEC/DIV switches to .1 s and push X10 CAL control to in
position.
(19) Set oscilloscope calibrator MARKER output to .1 S/D.
(20) Adjust A TRIGGER LEVEL control for a triggered display and horizontal
POSITION control to aline 1st time marker with 1st vertical graticule line.
(21) Adjust C703 (fig. 1) for 1 time marker per division over the center 8 divisions
(R).
(22) Position controls as listed in (a) through (c) below:
(a) HORIZONTAL MODE switch to B.
(b) A SEC/DIV switch to 1 s.
(c) B SEC/DIV switch to .1 s.
(23) Adjust horizontal POSITION control to aline 1st time marker with 1st vertical
graticule line.
(24) Adjust C713 (fig. 1) for 1 time marker per division over the center 8 divisions
(R).
(25) Position controls as listed in (a) through (c) below:
(a) HORIZONTAL MODE switch to A.
(b) A AND B SEC/DIV switches to .05 s.
(c) X10 CAL control to out position.
(26) Set oscilloscope calibrator MARKER output to 10 nS/D.
(27) Adjust horizontal POSITION control to aline the 1st time marker that is 25 ns
beyond start of sweep with the 2nd vertical graticule line.
(28) Adjust C775 (fig. 1) and C785 (fig. 1) alternately for 1 time marker every 2
divisions over the center 8 divisions (R).
(29) Position controls as listed in (a) through (d) below:
(a) HORIZONTAL MODE switch to ALT.
CHANGE 2 23
