TB 9-6625-2295-35
Table 20. Delayed Sweep Delta Time Continued
Oscilloscope calibrator
Test instrument
A SWP SEC/DIV
B SWP SEC/DIV
output settings
switch settings
switch settings
.2
ms
s
s
200
2
.5
ms
s
s
500
5
1
ms
1
ms
s
10
2
ms
2
ms
s
20
5
ms
5
ms
s
50
10
ms
10
ms
s
100
20
ms
20
ms
s
200
50
ms
50
ms
s
500
.1
s
100
ms
1
ms
.2
s
200
ms
2
ms1
.5
s
500
ms
5
ms1
17.4
divisions or less.
11. Bandwidth
a. Performance Check
(1) Set A SWP SEC/DIV switch to 50 s (knobs locked).
(2) Set CH 1 VOLTS/DIV switch to 20 mV.
(3) Press corresponding pushbuttons for indications as listed in (a) through
(e) below:
(a)
VERTICAL MODE CH1 on and VERTICAL MODE CH2, CH3, and CH4 off.
CH1 and CH2 input coupling for 1 MΩ DC.
(b)
(c)
TRIGGER SOURCE for VERT CH1.
∆t off.
(d)
(e)
TRACK/INDEP for INDEP.
(4) Set oscilloscope calibrator for a CHAN 1, LEVEL SINE mode output of 50 kHz
and adjust output amplitude for 6 divisions of display on TI.
NOTE
Adjust SEC/DIV, X10 MAG, and triggering LEVEL as needed
in the following checks.
(5) Increase oscilloscope calibrator frequency until display is 3.5 divisions for
channels and levels as listed in table 21 below. If oscilloscope calibrator frequency is not
400 MHz or greater, perform b below.
