TB 9-6625-1966-24
(b) SWEEP TIME VERNIER control fully cw.
(c) SWEEP MODE switch to AUTO.
(23) Measure risetime, using standard risetime techniques. Risetime will be 10 ms
or less and falltime less than 3 ms, with amplitude greater than 15 V p-p.
(24) Connect frequency counter to function generator CHANNEL B OUTPUT.
(25) Set function generator CHANNEL B function switch to SQUARE WAVE and
AMPLITUDE control to midrange.
(26) Set TI SWEEP MODE switch to EXT. FREQ CONTROL and FREQUENCY
RANGE switch to X10 to X10K.
(27) Adjust TI start control until frequency counter indicates 100 Hz.
(28) Connect calibrator to TI INPUT TRIG/FREQ CONTROL.
(29) Adjust calibrator for a 6 V output. Frequency counter will indicate between 950
and 1050 Hz.
(30) Connect oscilloscope to function generator CHANNEL A OUTPUT.
Set
function generator function switch to SQUARE.
(31) Set TI FREQUENCY RANGE switch to X1 to X1K.
(32) Adjust START control to 90 Hz and STOP control to 110 Hz.
(33) Rotate MAN. START/MAN. STOP control from START to STOP positions
while adjusting oscilloscope controls for a 1 cycle square wave display on oscilloscope.
(34) Rotate MAN. START/MAN. STOP control from START to STOP positions,
while observing waveform. If variation occurs at midway point of rotation, perform b below.
b. Adjustments
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
(1) Adjust A5R5 (fig. 7) for minimum variation of waveform at midway point of
rotation (R).
for minimum variation at midway point of rotation (R).
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