Selecting Positive or Negative-Edge Event Triggers

CAUTION

Service

Adjustments

5.Place the lid (including the light pipes) onto the Driver module housing.

6.Screw the lid onto the housing. Tighten to about 7 in-lbs to insure that the SCU is environmentally sealed.

Adjustments

There are no adjustments that can be made in the mainframe, Digital I/O card, or the RF switch. Any other adjustments, or settings, that may be performed due to a part replacement or service, is shown below.

85330-60002 Card

By default, the positive-edge of the EVENT TRIG line starts the measurement on the 85330-60002 card. If this card is replaced, the EVENT TRIG line may be required to be changed to a negative-edge trigger. To change this, perform the following procedure.

This device contains devices that are sensitive to static discharge. When you remove the cover of this device, observe static safety precautions:

Place the unit on a grounded anti-static mat.

Wear a grounded wrist strap, or

Foot straps are only acceptable if you wear one on each foot, and if you are standing on a grounded floor mat.

See Figure 9-4.

9-22

85330A Multiple Channel Controller

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Agilent Technologies 85330A service manual Adjustments, Selecting Positive or Negative-Edge Event Triggers