TB 9-6625-2293-24
(24) Increase oscilloscope calibrator frequency to 300 MHz.
Display amplitude
should be between 4.5 and 5 divisions.
(25) Sweep oscilloscope calibrator frequency from 300 to 250 MHz. If display
amplitude is not 4.4 divisions or greater, make necessary compromises to settings in (14)
and (18) above to obtain best flat top with proper bandwidth. HF ADJUST (R417) (fig. 1)
will have most effect on bandwidth.
(26) Move connection from TI CH 2 to TI CH 1 and press VERTICAL MODE CH 1
pushbutton to on and CH 2 VERTICAL MODE CH 2 off.
(27) Repeat technique of (22) through (25) for CH 1.
(28) If readjustment of HF ADJ R417 (fig. 1) was necessary, repeat (13) through (25)
above.
23. Final Procedure
a. Press POWER pushbutton to OFF, and replace protective cover.
b. Press POWER pushbutton to ON and repeat paragraphs 7 through 13.
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