Low Edge Amplitude Aberrations

TB 9-6625-2274-40

(3) Adjust UNITS/DIV dial to display 1 mA/D. Press AMPLITUDE MODE

pushbutton to display X 5 DIV. Multimeter will

NUMBER OF DIV (MULTIPLIER)

indicate between 4.9875 and 5.0125 mA.

(4) Adjust UNITS/DIV dial to display 5 mA/D. Press AMPLITUDE MODE

pushbutton to display X 4 DIV. Multimeter will

NUMBER OF DIV (MULTIPLIER)

indicate between 19.95 and 20.05 mA.

(5) Press OUTPUT ON pushbutton off.

(6) Remove multimeter and connect TI OUTPUT to digitizing oscilloscope

INPUT/TDR OUTPUT. Connect TRIGGER OUTPUT to digitizing oscilloscope TRIG.

(7) Position controls as listed in (a) through (g) below:

(a) Press AMPLITUDE MODE AMPL MODE CURRENT pushbutton.

(b) Press AMPLITUDE MODE FREQ

pushbutton to highlight 10 kHz.

ushbutton to display X 4 DIV.

(d) Press TRIGGER ON push-button on.

(e) Press TRIGGER NORM pushbutton on.

(f) Adjust UNITS/DIV dial to display 1 mA/D.

(g) Press OUTPUT ON pushbutton on.

(8) Acquire signal using digitizing oscilloscope and adjust sensitivity to 1 mV/D.

Adjust digitizing oscilloscope offset to align top of square wave exactly on center horizontal

graticule.

(9) Disconnect digitizing oscilloscope TRIG input. Connect leveled sine wave

generator AMPLITUDE LEVELING HEAD to digitizing oscilloscope TRIG.

pushbutton to highlight +DC.

(10) Press AMPLITUDE MODE FREQ

(11) Set leveled sine wave generator for an output of 1 V, 10 kHz.

(12) Digitizing oscilloscope will display a signal indicating within .5 major division

of center horizontal graticule.

(13) Press OUTPUT ON pushbutton off and disconnect equipment setup.

b. Adjustments. See paragraph 6 d above.

10. Low Edge Amplitude Aberrations

a. Performance Check

(1) Connect TI OUTPUT to digitizing oscilloscope INPUT/TDR OUTPUT using

tunnel diode pulser. Connect TRIGGER OUTPUT to digitizing oscilloscope TRIG.

(2) Position controls as listed in (a) through (f) below:

(a) Press AMPLITUDE MODE AMPL MODE EDGE pushbutton.

(b) Press AMPLITUDE MODE NUMBER OF DIV (MULTIPLIER)

ushbutton to display X 6 DIV.

(d) Press AMPLITUDE MODE FREQ

pushbutton to highlight 100 kHz.

(e) Adjust UNITS/DIV dial to display 10 V/D.