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Brief Procedures
4–8
TDS 684A, TDS 744A, & TDS 784A Service Manual
Equipment
Required
One probe such as the P6245 or P6139A
Prerequisites None
1. Install the test hookup and preset the oscilloscope controls:
a. Hook up the signal source: Install the probe on CH 1. Connect the probe
tip to PROBE COMPENSATION SIGNAL on the front panel;
connect the probe ground (typically black) to PROBE COMPENSA-
TION GND. If using a P6245 probe, you may want to attach a Y-lead
connector and two SMD KlipChips as shown in Figure 4–3.
Signal Gnd
Figure 4–3: Universal Test Hookup for Functional Tests – TDS 684A Shown
b. 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.
Verify All Input Channels