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Performance Tests
TDS 684A, TDS 744A, & TDS 784A Service Manual
4–75
PAL Signal
Source
Digitizing Oscilloscope
75 W Cable
75 W
Terminator
Output
Figure 4–34: Line Count Accuracy Test Hookup
H Press the main-menu Trigger Position.
H Press the side-menu to Set to 50%.
H Press the main-menu to Horiz Pos.
H Press the side-menu to Set to 50%.
H Use the HORIZONTAL POSITION knob to move the falling edge
of the sync pulse to two divisions to the left of center screen. See
Figure 4–35.