TB 9-6625-2240-35
Table 12. Delay Time and Differential Measurement
Test instrument
DELAY TIME
Oscilloscope
Test
Test instrument
POSITION
TIME/DIV
calibrator
instrument
dial limits
MARKER
VOLTS/DIV
switch setting
Test instrument
output setting
switch setting
A
B
Min
Max
adjustments
.5
8.95
9.05
b(4) through (7)
10 s
10 s
10 s
NOTE
You may need to adjust A TRIGGER SLOPE LEVEL for a
stable display.
(13) Set TI VOLTS/DIV, TIME/DIV switch settings and oscilloscope calibrator
(14) Rotate DELAY TIME POSITION dial to 1.00.
(15) Set TI VOLTS/DIV, TIME/DIV switch settings and oscilloscope calibrator
(16) Adjust horizontal POSITION control to align 1st marker with center vertical
graticule line using test instrument settings and oscilloscope calibrator MARKER output
(17) Rotate DELAT TIME POSITION dial to align 9th time marker with center
vertical graticule line. DELAY TIME POSITION dial will indicate between 8.95 and 9.05;
if not, perform adjustments listed in table 13.
(18) Rotate DELAY TIME POSITION knob to 0.0 .
Table 13. Delay Time and Differential Measurement
Test instrument
DELAY TIME
Oscilloscope
Test
Test instrument
POSITION
TIME/DIV
calibrator
Test instrument
instrument
dial limits
MARKER
VOLTS/DIV
switch settings
adjustments
output settings
switch settings
A
B
Min
Max
.5
8.95
9.05
b(8) through (11)
0.1 s
0.1 s
0.1 s
b. Adjustments
(1) Adjust R950 (fig. 3) for 1 time marker per division (R).
(2) Adjust R938 (fig. 3) until start of sweep is aligned with the leading edge of the
displayed time marker (R).
NOTE
Interaction occurs between R936 and R938 (fig. 3). Readjust as
necessary for best in-tolerance condition.
(3) Adjust R936 (fig. 3) until start of sweep is aligned with the leading edge of the
displayed time marker (R).
14