TB 9-6625-2293-35
(22) After step 130 is completed display readout will indicate MOVE SW, CENTER
CH 2 POS, step 131, 10 V, [arrow down] 10 V, and BWL.
(23) Push up and release TRIGGER COUPLING switch.
(24) Adjust CH 2 VERTICAL POSITION control until CH 1 input coupling 1 M Ω DC
indicator remains illuminated, then push up and release TRIGGER COUPLING switch.
The TI will automatically increment through steps 132 to 142.
(25) Display readout will indicate MOVE SW, CENTER CH 1 POS step 142, 50 mV
and BWL.
(26) Move connection from CH 2 to CH 1 and set oscilloscope calibrator for a 50 mV
1 kHz output, then push up and release TRIGGER COUPLING switch.
(27) Adjust CH 1 VERTICAL POSITION control until CH 1 input coupling 1 M Ω DC
indicator remains illuminated, then push up and release TRIGGER COUPLING switch.
Wait approximately 10 seconds for automatic calibration of the ∆V cursors.
(28) Display readout will indicate VERTICAL CENTER and GAIN.
(29) Adjust VERTICAL CENTERING R639 (fig. 1) to center cursors on the 0 percent
and 100 percent dotted graticule lines.
(30) Push up and release TRIGGER COUPLING switch.
Display readout will
indicate DIAGNOSTIC PUSH A/B TRIG TO EXIT.
21. CAL 03 Triggering
a. Performance Check
(1) Set TRIGGER MODE switch up to step to CAL 03 (bottom left of display).
(2) Push up and release TRIGGER COUPLING switch.
(3) TI automatically steps from 201 through 214 and stops at 215 and display
readout indicates CH 1, 500 mV, (step) 215.
(4) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1.
(5) Set oscilloscope calibrator for a CHAN 1, VOLTAGE mode output of .5 V at 1
kHz frequency.
(6) Push and release TRIGGER COUPLING switch. Display readout will indicate
CH 1, 500 mV, (step) 216.
(7) Push up and release TRIGGER COUPLING switch.
Display readout will
indicate CH 2, 500 mV, (step) 217.
(8) Move connection from CH 1 to CH 2 and repeat (5) above.
(9) Push and release TRIGGER COUPLING switch. Display readout will indicate
CH 3, 500 mV, (step) 218.
(10) Move connection from CH 2 to CH 3 and repeat (5) above.
(11) Push and release TRIGGER COUPLING switch. Display readout will indicate
CH 3, 2 V, (step) 219.
(12) Change oscilloscope calibrator VOLTAGE mode output to 2 V.
