TB 9-6625-2294-24
(12) Press and release upper TRIGGER COUPLING pushbutton for TI CAL 02
step numbers and calibration generator output settings listed in table 23.
Table 23. Vertical Attenuator Check
Test instrument
Oscilloscope calibrator
CAL 02
VOLTAGE output
step numbers
settings
1
123, 124
0.5 V
125
0.2 V
126
0.1 V
127
50 mV
128
20 mV
129
1V
2
130
10 V
When stop 123 is performed, step 124 is automatically done.
1
No indication of step 124 will be shown unless a LIMIT
error is encountered.
2When step 130 is performed, step 131 is automatically done.
No indication of step 131 will be shown unless a LIMIT
error is encountered.
(13) Press and release upper TRIGGER COUPLING pushbutton.
TI will
automatically step from 130 to 142. Display readout will indicate: CONNECT SIGNAL
TO CH 1, (step) 142, 50 mV, and BWL.
(14) Move connection from CH 2 to CH 1.
(15) Set oscilloscope calibrator VOLTAGE output to 50 mV.
(16) Press and release upper TRIGGER COUPLING pushbutton.
Wait
approximately 10 seconds for automatic calibration of V cursors. Display readout will
indicate: VERT CENTER GAIN. Adjust GAIN R638 (fig. 1) for 5 divisions between
horizontal cursors (R).
(17) Adjust VERTICAL CENTERING R639 (fig. 1) to align cursors with 0 percent
and 100 percent graticule lines (R).
(18) Press and release upper TRIGGER COUPLING pushbutton. Self calibration
will continue 15 to 45 seconds. Display will indicate: DIAGNOSTIC. PUSH AB TRIG TO
EXIT.
20. CAL 03 - Triggering
a. Performance Check
(1) Press upper TRIGGER MODE pushbutton to CAL 03 (bottom left of display).
(2) Press and release upper TRIGGER COUPLING pushbutton.
(3) TI will automatically step from 200 to 214 and stop at 215. Display indicates:
CH 1, 500 mV, (step) 215.
(4) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to CH 1.
(5) Set oscilloscope calibrator VOLTAGE output to 0.5 V at 1 kHz.
(6) Press and release upper TRIGGER COUPLING pushbutton. Display readout
will indicate: CH 1, 500 mV, (step) 216.