TB 9-6625-2294-35
(29) Adjust horizontal POSITION control cw until the trace stops moving, then ccw
to position leading edge of the 2d time marker near graticule center.
(31) Press ∆t pushbutton to obtain ∆t display and push SEC/DIV knob in for B SWP
only.
(32) Initially adjust ∆ control ccw until signal trace movement stops. Then adjust
∆ control cw to superimpose the two time markers. ∆t indication will be within limits as
listed in first row of table 15, if not perform b below.
(33) Adjust ∆ control cw to move signal trace 2 signal peaks to left and superimpose
the signal trace (will be near 0.00 nSec on TI display). ∆t indication will be within limits
as listed in second row of table 15, if not perform b below.
(34) Repeat technique of (33) above for remaining ∆t readout indications listed in
table 15. If ∆t
readout indications are not within
specified limits in
table 15, perform b
below.
Test instrument
∆t readout
∆t readout
indication limits
indications
Min
Max
(ns)
(ns)
(ns)
-10.0
-9.86
-10.14
0.0
-0.10
0.10
10
9.86
10.14
20
19.84
20.16
30
29.80
30.20
40
39.78
40.22
50
49.74
50.26
60
59.72
60.28
70
69.68
70.32
80
79.66
80.34
(35) Perform steps (a) though (e) below:
(a)
Set A SWP SEC/DIV switch to 20 ns.
(b)
Set B SWP SEC/DIV switch to 5 ns (knob out).
(c)
Ensure X10 MAG pushbutton is on.
Ensure ∆t pushbutton is off for DLY readout.
(d)
(e)
(36) Adjust ∆REF OR DLY POS control for DLY readout of 21.25 ns and horizontal
POSITION control to position leading edge of 2d time marker near graticule center.
NOTE
Adjust intensity control as required to assist in locating start of
1st time marker.