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16962A Logic Analyzer Service Guide
Select the plus sign to expand bus "My Bus 1".
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Align the blue bars vertically
Initially, the blue bars will be vertically aligned. After running Eye Finder,
the blue bars will not be vertically aligned because an independent sample
position will be determined for each channel.
1 If the blue bars in the Eye Finder display are not vertically aligned:
a In the "My Bus 1" row, grab the right-most blue bar with the mouse pointer
and move it all the way to the left. Release the mouse button. This will
vertically align all of the blue bars.
2 Using the mouse pointer, grab the blue bar for "My Bus 1 (4 channels)" and
move it to the recommended starting position of -3.6 ns. All of the blue bars
will follow.
Select the Eye Scan with Sample Position Setup Only run type.
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Select the Run button in the Thresholds and Sample
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Positions dialog.
Ensure that an eye appears for each bit near the
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recommended starting position. Depending on your test
setup, the eye position may vary. Any skew between
channel 1 and channel 2 of your pulse generator will
cause the eye position to shift to the left or right in the
Eye Finder display. A shift of up to 0.5 ns should be
considered normal. The important point is that your Eye
Finder display should look similar to the picture below
Testing Logic Analyzer Performance
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