Mid and High Edge Offset cont'd

TB 9-6625-2274-50

(4) Press OUTPUT ON pushbutton on.

i. Adjust A7R1408 (fig. 1) until oscilloscope displays exactly 5 vertical divisions of trace

separation.

j. Adjust UNITS/DIV dial to display 2 V/D and press AMPLITUDE MODE FREQ

pushbutton to highlight 100 kHz.

k. Acquire signal using oscilloscope and set amplitude to 2 V/D.

Perform risetime

technique using oscilloscope.

Adjust A7R1527 (fig. 1) until oscilloscope displays a risetime of ≤40 ns.

m. Press OUTPUT ON pushbutton off and connect X10 probe between

oscilloscope and TI.

n. Position controls as listed in (1) through (6) below:

(1) Press AMPLITUDE MODE AMPL MODE EDGE pushbutton.

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

pushbutton to display X 5 DIV.

(3) Press AMPLITUDE MODE FREQ

pushbutton to highlight 1 kHz.

(4) Adjust UNITS/DIV dial to display 20 V/D.

(5) Press VARIABLE ON pushbutton off.

(6) Press OUTPUT ON pushbutton on.

o. Acquire signal using oscilloscope and set amplitude to 2 V/D. Adjust oscilloscope

variable control until display indicates exactly 4 vertical divisions of trace separation.

p. Position controls as listed in (1) through (6) below:

(1) Press AMPLITUDE MODE AMPL MODE VOLT pushbutton.

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

pushbutton to display X 5 DIV.

(3) Press AMPLITUDE MODE FREQ

pushbutton to highlight 1 kHz.

(4) Adjust UNITS/DIV dial to display 20 V/D.

(5) Press VARIABLE ON pushbutton on.

(6) Press OUTPUT ON pushbutton on.

q. Adjust TI VAR dial for exactly 4 vertical divisions of trace separation on

oscilloscope. Do not change once set.

r. Adjust UNITS/DIV dial to display 5 V/D and press AMPLITUDE MODE

NUMBER OF DIV (MULTIPLIER)

pushbutton to display X 4 DIV.

s. Adjust oscilloscope amplitude to 200 mV/D and adjust variable control for 6 vertical

divisions of trace separation.

t. Position controls as listed in (1) through (4) below:

(1) Press AMPLITUDE MODE AMPL MODE EDGE pushbutton.