TB 9-6625-2293-35
(30) Set TRIGGER COUPLING switch up to AC and repeat technique of (28) and
(29) above.
(31) Press VERTICAL MODE CH 1 pushbutton off and VERTICAL MODE CH 2
pushbutton on.
(32) Change oscilloscope calibrator active output from CHAN 1 to CHAN 2.
(31) Repeat technique of (16) through (30) above for CH 2.
b. Adjustments. Refer to SECTION IV below.
11. Timing
a. Performance Check
(1) Press VERTICAL MODE CH 1 on and VERTICAL MODE CH 2, 3, and 4 off.
(2) Set TRIGGER COUPLING switch up to DC.
(3) Press X10 MAG pushbutton to off.
(4) Set oscilloscope calibrator for a CHAN 1, MARKER mode output of 5 ns/div.
(5) Set A SWP SEC/DIV switch to 5 ns (knobs locked).
(6) Set CH 1 VOLTS/DIV switch for approximately 2 divisions of display.
(7) Adjust TRIGGER LEVEL control for a stable display.
(8) Adjust horizontal POSITION control to align 2d time marker with 2d vertical
graticule line.
(9) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton to
and TI linearity are not within limits specified in first row of table 8, perform b below.
(10) Repeat technique of (4) through (9) above for remaining TI settings and
oscilloscope calibrator outputs listed in table 8. If oscilloscope calibrator err display and TI
linearity are not within limits specified in table 8, perform b below.
Test instrument
Oscilloscope calibrator
A SWP SEC/DIV
MARKER
Err display
setting
output
limit
(%)
5 ns
5 nS/D
1.45
10 ns
10 nS/D
1.45
20 ns
20 nS/D
1.45
50 ns
50 nS/D
1.45
100 ns
100 nS/D
1.45
200 ns
200 nS/D
1.45
500 ns
500 nS/D
1.45
1 s
1 S/D
1.45
2 s
2 S/D
1.45
5 s
5 S/D
1.45
10 s
10 S/D
1.45
20 s
20 S/D
1.45
50 s
50 S/D
1.45
