TB 9-6625-2083-24
Figure 2. Test instrument - bottom view (Type 453A).
(6) Set oscilloscope calibrator for a CHAN 2, EDGE mode output of 100 mV, and
frequency of 1 kHz. Rotate oscilloscope calibrator knob located below EDIT FIELD
pushbutton for 5 divisions of vertical deflection on TI.
(7) Set MODE switch to CH 2.
(8) Adjust standardizer for optimum square corner and flat top indication on TI. If
standardizer cannot be adjusted for optimum square wave, adjust C117 (fig. 1 for Type 453)
(fig. 2 for Type 453A) for flat top and readjust standardizer for optimum square wave (R).
(9) Repeat technique of (6) above for TI VOLTS/DIV switch settings listed in table
5 for CH 2.
b. Adjustments. No further adjustments can be made.
10. High Frequency Compensation
a. Performance Check
(1) Position TI switches as listed in (a) through (c) below:
(a) CH 1 and CH 2 VOLTS/DIV to 20 mV.
(b) MODE to CH 1.