TB 9-4931-504-50
NOTE
Unless otherwise specified, verify the results of each test
and, whenever the test requirement is not met, take
corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this
procedure. Additional maintenance information is included
in the manufacturer's manual for this TI.
NOTE
When indications specified in paragraphs 8 through 22 are
not within tolerance, perform the power supply, check prior
to making adjustments. After adjustments are made, repeat
check if all other parameters are within tolerance.
8. Vertical Deflection
a. Performance Check
(1) Connect ac calibrator (Al) to CH1 and CH2 inputs, using adapter and cable
(B1 and B5).
(2) Adjust ac calibrator frequency for 50 kHz (kilohertz) and amplitude for .3535
V rms (volt root mean square).
(3) Adjust TRIGGERING LEVEL control for stable display. If oscilloscope (A3)
does not display 5 divisions of vertical deflection, adjust CH1 GAIN (front panel) control
for 5 divisions of deflection.
(4) Adjust ac calibrator for 5 divisions of vertical deflection for settings and
indications listed in table 4. Ac calibrator will indicate within limits specified.
Test instrument
Ac calibrator indications
VOLTS/DIV
(mV rms)
switch settings
Min
Max
.5
857.238
910.263
.1
171.448
182.053
50mV
85.7238
91.0263
20mV
34.2895
36.4105
10mV
17.1448
18.2053
(5) Press CH2 pushbutton and repeat technique of (2) through (4) above for CH2.
b. Adjustments. No adjustments can be made.
9. Triggering
a. Performance Check
