Tektronix TriMode P7500 Series Manual de usuario

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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

supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of

Tektronix, Inc.All other trade names referenced are the service marks, trademarks or registered trademarks of their respective companies.

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

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