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Adjustment Procedures
5–14
TDS 684A, TDS 744A, & TDS 784A Service Manual
Digitizing Oscilloscope
BNC-Female-to-
Female BNC
Adapter
Leveling Head
BNC-to Probe
Tip Adapter
High Frequency
Sine Wave
Generator
Output
Figure 5–6: Initial Test Hookup
c. Initialize the oscilloscope:
H Press save/recall SETUP.
H Press the main-menu button Recall Factory Setup.
H Press the side-menu button OK Confirm Factory Init.
d. Modify the initialized front-panel control settings:
H Set the vertical SCALE to 500 mV.
H Set the horizontal SCALE to 100 ns.
H Push SET LEVEL TO 50% as required to trigger the signal.
H Press SHIFT. Then press ACQUIRE MENU.
H Press the main-menu button Mode. Then press the side-menu button
Average 16.
H Press MEASURE.
H Press the main-menu button Hi-Low Setup. Then press the
side-menu button Min-Max.
H Press the main-menu button Select Measrmnt for Ch1.
H Repeatedly press the side-menu button –more– until Pk-Pk appears
in the side menu. Press the side-menu button Pk-Pk.
H Press CLEAR MENU.
2. Confirm that the Probe Compensator signal is within limits for bandwidth: