TB 9-6625-2295-24
(9) Move connection from CH 1 to CH 2. Display readout indicates CONNECT
SIGNAL TO CH 2, (step) 121, 500 mV, 500 mV and BWL.
NOTE
When (step) 121 is performed, (step) 122 is also automatically
performed. No indication of (step) 122 will be shown unless a
LIMIT error is encountered.
(10) Set oscilloscope calibrator for a CHAN 1, VOLT mode output of .5 V at 1 kHz.
(11) Press and release upper TRIGGER COUPLING switch. Display readout will
indicate (step) 123, 500 mV, 500 mV, and BWL.
(12) Press and release upper TRIGGER COUPLING pushbutton for TI step
numbers and oscilloscope calibrator output settings listed in table 26.
Test instrument
CAL 02
Oscilloscope calibrator
step numbers
output settings
1
123,124
0.5 V
125
0.2 V
126
0.1 V
127
50
mV
128
20
mV
129
1
V
2
130
10
V
1
When (step) 123 is performed; (step) 124 is also automatically done.
No indication of step 124 will be shown unless a LIMIT error is
encountered.
2
When (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 for a CHAN 1, VOLT mode output of 50 mV at 1 kHz.
(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 DIAGNSTIC.PUSH A/B TRIG TO
EXIT.
35