TB 9-4931-503-24
9. Main Sweep Timing
a. Performance Check
(1) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to dual trace
amplifier CH 1 input.
(2) Press TI TRIG SOURCE LEFT pushbutton.
(3) Set TI MAIN SEC/DIV switch and oscilloscope calibrator MARKER output as
listed in first row of table 4.
NOTE
If necessary, adjust TI MAIN TRIG LEVEL control for a
stable display.
(4) Adjust TI POSITION control to align 2d marker with 2d vertical graticule line
on oscill1scope.
(5) Adjust oscilloscope calibrator EDIT FIELD knob to align 10th marker with 10th
vertical graticule line on oscilloscope. If oscilloscope calibrator err display indication is not
within limits specified in first row of table 4, perform b below.
(6) Repeat technique of (3) through (5) above for remaining rows in table 4.
Table 4. Main Sweep Timing (Unmag)
Oscilloscope calibrator
Test instrument
err
MAIN SEC/DIV
MARKER
display
switch settings
output settings
indications
(%)
s
S/D
4
0.1
0.1
s
S/D
4
0.2
0.2
s
S/D
3
0.5
0.5
s
S/D
3
1
1
s
S/D
3
2
2
s
S/D
3
5
5
s
S/D
3
10
10
s
S/D
3
20
20
s
S/D
3
50
50
0.1
ms
0.1
mS/D
3
0.2
ms
0.2
mS/D
3
0.5
ms
0.5
mS/D
3
1
ms
1
mS/D
3
2
ms
2
mS/D
3
5
ms
5
mS/D
3
10
ms
10
mS/D
3
20
ms
20
mS/D
3
50
ms
50
mS/D
3