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Performance Tests
4–82
TDS 684A, TDS 744A, & TDS 784A Service Manual
H Disconnect the signal source from CH1, wait a few seconds, then
reconnect the signal.
H CONFIRM that the TRIG’D LED is lighted and the waveform is
stable.
H Disconnect all test equipment (TSG 121) from the digitizing
oscilloscope.
H Press save/recall SETUP, the main-menu button Recall Factory
Setup, and the side-menu OK Confirm Factory Init.