Probe Adjust O U Tp U T; Auto Setup Functional Check - Tektronix 2245A Operator's Manual

e. Set A INTEN to midrange.
f. Disconnect the test equipment from the 2245A.
2. PRO BE A D J U S T O u tp u t
a. Set:
CH 1 VOLTS/DIV
SEC/DIV
b. Connect a 10X probe to the CH 1 input connector and connect the
probe tip to the 2245A PROBE ADJUST output. (When using Tektronix
coded probes, the readout changes to .1 V.)
c. CHECK—For a 5-division vertical display of PROBE ADJUST square-
wave signal (square-wave period is typically 1 ms, within 25%).
3. A U TO SETUP F u n ctio n a l C h e c k
a. Set:
CH 1 COUPLINQ
CH 1 VOLTS/DIV
A SEC/DIV
b. Press the AUTO SETUP button.
c. Check that the Probe Adjust waveform is stably displayed on the upper
half of the crt.
2245A Operators
Performance Check Procedure
10 mV
0.2 ms
GND
2 mV
20 ns
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