TB 9-6625-2132-24
Figure 2. Adjustment locations - right side view (Type 7A13).
10. +INPUT and -INPUT Attenuator Compensation
a. Performance Check
(1) Position TI controls as listed in (a) through (c) below:
(a) VOLTS/DIV switch to 10 mV.
(b) BW pushbutton to FULL.
(c) +INPUT pushbutton to DC.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 output to TI
+INPUT, using standardizer.
(3) Press oscilloscope calibrator VOLTAGE key and set oscilloscope calibrator
output for 1 kHz and 6 divisions of vertical deflection on oscilloscope.
(4) Adjust standardizer for optimum square wave (square corners and flat tops).
(5) Repeat technique of (3) above for TI VOLTS/DIV settings listed in table 5. If
aberrations on square wave are more than 3 minor divisions, perform appropriate
adjustment listed in table 5.
Table 5. +INPUT and INPUT Attenuator Compensation
Test instrument
Adjustments (fig. 1)
VOLTS/DIV
+INPUT
-INPUT
switch settings
Square corner
Flat top
Square corner
Flat top
10 mV
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C34
20 mV
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50 mV
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