TB 9-6625-2239-24
(5) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton to
adjust output for 0.0% indication on err display. Adjust R118 (fig. 2) for 6 divisions of
vertical display. If R118 does not adjust to 6 divisions, adjust R118 to midrange; then
adjust R400 (R4466 for DISCRETE VERSION) (fig. 4) for 6 divisions of vertical display (R).
(6) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton to
adjust output for 0.0% indication on err display. Adjust R218 (fig. 2) for 6 divisions of
vertical display (R).
Figure 4. Tektronix, Type 465 and 465 with options - A5 circuit board.
NOTE
For oscilloscopes with digital multimeters attached, refer to the
calibration section of the manufacturer's manual for the digital
a. Performance Check
(1) Press VERT MODE CH 1 pushbutton to on (in), set A AND B TIME/DIV
switches to 1 ms, and VOLTS/DIV switch to .5.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1
using a 50 feedthrough termination.
(4) Adjust TI horizontal POSITION control to align 1st marker on 1st vertical
graticule line.
(5) Rotate oscilloscope calibrator knob located below EDIT FIELD pushbutton for 1
marker per division. If oscilloscope calibrator err display readout does not indicate within
2%, perform b (1) below.