TB 9-6625-2295-24
(6) Disconnect multimeter.
(7) Press 't pushbuttons to off (no cursors on display).
(8) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1
using a 5-80 pF standardizer.
(9) Set oscilloscope calibrator for a CHAN 1, EDGE mode output of 600 mV at 1 Hz.
(10) Rotate oscilloscope calibrator knob below EDIT FIELD pushbutton to adjust
amplitude for a 6 division display.
(11) Adjust 5-80 pF standardizer for a square front corner over the first 40 Ps (0.4
division) of the positive portion of waveform. Note waveform front corner for use in (14)
below.
(12) Set oscilloscope calibrator for a CHAN 1, EDGE mode output of 300 mV at 1 kHz.
(13) Set VOLTS/DIV switch to 50 mV and repeat (10) above.
(14) Adjust CH1 50 mV C ADJ (C105), CH2 50 mV C ADJ (C205) (fig. 1) for same
waveform front corner as noted in (11) above.
(15) Set VOLTS/DIV switch to 100 mV.
(16) Repeat (9) through (15) above until no change is observed in the waveform
front corner.
(17) Press VERTICAL MODE CH 1 to off and CH 2 to on.
(18) Press TRIGGER SOURCE pushbutton to CH 2.
(19) Repeat technique of (8) through (16) above for CH 2.
b. Adjustments. None.
19. CAL 01 Horizontal Calibration
a. Alignment
(1) Simultaneously press and hold 't and 'V pushbuttons; then press and hold
TRIGGER SLOPE pushbutton. Hold in all three pushbuttons for approximately 1 second
and then release. Top of display will indicate: DIAGNSTIC PUSH A/B TRIG TO EXIT.
(2) Press upper TRIGGER MODE pushbutton to CAL 01 (bottom left of display).
CAUTION
Upon entering CAL 01, the input coupling is automatically set
to 50 : DC and 50 : overload protection is disabled. Before
starting procedure, make sure any 50 : overload condition has
been cleared.
NOTE
In this procedure, pressing up and releasing TRIGGER
COUPLING pushbutton stores current calibration parameter
being set and increments routine to next step (except where
otherwise noted).
