TB 9-6625-2024-24
(2) Disconnect cable from oscilloscope calibrator SOURCE/MEASURE CHAN 1
and connect to TI calibrator to CH 1 input (for Tektronix, Type 7603 connect TI calibrator
4 V and GND to CH 1 INPUT).
(3) Adjust R1077 (CAL ADJ) (fig. 1) for a 5 division indication on TI (R).
Figure 1. Test instrument top view.
9. Vertical Amplifier Centering and Gain
a. Performance Check
(1) Install calibration adapter in left vertical compartment.
(2) Set calibration adapter TEST switch to VERT OR HORIZ COM MODE. If
displayed trace is not within r3 minor divisions of center horizontal graticule line, perform
b (1) below.
(3) Set POSITION and AMPLITUDE controls on calibration adapter to midrange.
(4) Set calibration adapter TEST switch to VERT OR HORIZ GAIN.