Tektronix 067-0599-00 Instruction Manual page 25

Connect the probe to TP259, and with the comparator
position control, position the bottom of the pulse to the grat-
icule center.
Set the comparator Comparison Voltage to 0.500 and V,
range to +. Adjust R259 to position the top of the pulse to
the graticule center, within 0.5 division.
d. Check 25 V pulse, within 1 V.
Center the trace on the test scope, and connect the
probe to terminal AG on the Main circuit board. Set the
Calibration—-067-0599-00
comparator Volt/Div to 100 mV. Position the bottom of the
pulse to graticule center. Set the Comparison Voltage to
0.00 and V, range to +, O—10V.
Set V, to 2.5 and mesure the 25 V pulse amplitude to be
within + 1 V.
Remove the probe.
This completes the calibration procedure.
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