Tektronix TriMode P7500 Series User manual

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P7500 TriMode™ Probe Deskew
Procedures
Overview
Deskew aligns signals to compensate for differing signal
delays from cables of different lengths. The oscilloscope
deskew feature applies deskew correction after it
completes each acquisition. The deskew values do not
affect logic triggering. Deskew has no affect on XY and
XYZ display formats. In order to perform deskew with
the P7500 Series probes, the Tektronix Deskew Fixture
(Part Number 067-1586-00) shown in Figure 1 is
required.
Step-by-Step Procedures
1. Connect the deskew fixture to a USB power source as shown in
Figure 2 with the other end of the USB cable plugged into the
oscilloscope.
2. Connect the probes to the oscilloscope.
Figure 1: Tektronix P7500 Deskew Fixture
Figure 2: Powering the Deskew Fixture

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P7500 TriMode™ Probe Deskew Procedures
3. Locate the solder box on the Deskew Fixture. Ensure that
the solder pins are in the middle of the solder box as shown
in the box in Figure 3
4. Solder the first of two P75TLRST solder tips to the solder
pins.
5. Push the pins through the solder box and rotate the P75TLRST
so that it is on the opposite side of the solder box as shown in
Figure 5. Secure the cable of the P75TLRST in the slot in the
clamp.
Figure 3: Location of the Solder Pins
Figure 4: P75TLRST Soldered to the Solder Pins
Figure 5: P75TLRST Secured in the Clamp

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P7500 TriMode™ Probe Deskew Procedures
6. Solder the second P75TLRST solder tip to the solder pins.
Make sure the second solder tip is inverted because the
polarities will need to match for proper deskew. The red band
on the solder tips should be located on the same side as
shown in Figure 6.
7. With the P75TLRST wire leads soldered on to the solder pins,
remove the solder pins from the solder box and install them in
the holes at the top of the Deskew Fixture shown in Figure 7.
The solder pin with the red band is inserted into the hole with
the “+” and the other solder pin is inserted into the hole with the
“-“.
Figure 7: Holes for the Solder Pins
Figure 6: Two P75TLRSTs Soldered to the Solder Pins

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03/09 JS/WWW 51W-24046-0
P7500 TriMode™ Probe Deskew Procedures
8. Close the clamp by pushing down on the lever to secure the Tip-
Clip assembly as shown in Figure 8. NOTE: To avoid
unnecessary wear on the clamp elastomer, leave the clamp in
the open position when not using the fixture.
9. The P75TLRST solder tips are positioned in the Deskew Fixture as
shown in Figure 9. Ensure the polarities of the wire leads are
attached to the correct connector. The red bands on the wires
should be located on the same side.
10. Reference your oscilloscope manual for detailed deskew adjustment
procedures.
Figure 8: Securing the Clamp on the Deskew Fixture
Figure 9: Two P75TLRSTs secured in the Deskew Fixture