TB 9-6625-2173-35
b. Adjustments
(1) Rotate oscilloscope calibrator EDIT FIELD knob for an err display of 0.0%.
Adjust R212 (fig. 1) until TI displays 1 time marker per division over center 8 divisions (R).
(2) Rotate oscilloscope calibrator EDIT FIELD knob for an err display of 0.0%.
Adjust R258 X5 HORIZ GAIN (fig. 2) until TI displays 1 time marker per division over
center 8 divisions (R).
11. Bandwidth
a. Performance Check
(1) Release all pushbuttons to out position except for ms pushbutton.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI VERT
INPUT using a 50 Ω feedthrough termination.
(3) Set oscilloscope calibrator LEVEL SINE output frequency to 50 kHz and a
reference amplitude of 6 divisions on TI crt.
(4) Change oscilloscope calibrator LEVEL SINE output frequency to 5 MHz.
Displayed amplitude will be 4.2 divisions or greater.
(5) Press the 100 mV pushbutton in and repeat (3) and (4) above.
b. Adjustments. No adjustments can be made.
12. Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
ground. If digital multimeter does not indicate between 19.9 and 20.1 V dc, perform b
below.
13. Final Procedure
a. Deenergize and disconnect all equipment and reinstall protective covering on TI.
b. Annotate and affix DA label/form in accordance with TB 750-25.