TB 9-6625-1200-24
(2) Adjust C114 (fig. 1) (for S/N below 20,000) for optimum square wave. Adjust
R237, C237, L245, and L255 (fig. 3) (for S/N 20,000 and above). Compromise the
adjustments for optimum square wave (R).
a. Performance Check
(1) Set TIME/DIV switch to .5 mSEC.
(2) Set CH2 VOLTS/DIV switch to CALIBRATE 4 DIVISIONS position and
(3) Set CH2 VOLTS/DIV switch to .5.
(4) Connect TI 2 VOLT PROBE CALIBRATOR jack to TI CH2 input.
(6) Connect oscilloscope calibrator SOURCE/MEASURE output to TI CH2 input.
(7) Set oscilloscope calibrator VOLTAGE output for 1 kHz, 2 V and adjust variable
for same value recorded in (2) above. If oscilloscope calibrator Err readout does not
indicate within 1.6% (2.5% for S/N 20,000 and above) of reading recorded in (2) above,
perform b below.
(8) Adjust oscilloscope calibrator variable control for same value recorded in (5)
above. Oscilloscope calibrator Err readout will indicate within 3.6% (1.5% for S/N 20,000
and above) of value recorded in (5) above.