Chapter 6: Replacing Assemblies

To remove and replace an acquisition hybrid

The Hybrid Connector

As shown in the illustration, two screws through the hybrid connector hold the bottom plate to the underside of the PC board. If you remove the connector, the bottom plate can fall away from the board.

Sometimes the plate will stick to the bottom of the board by itself because of adhesives that fasten an insulator to the plate. If the connector is very gently removed and replaced, you might be able to replace the connector without removing the acquisition board. The key is to apply very little pressure while removing the connector screws. Too much pressure will push the plate away from the bottom of the board. If the plate falls from the board, you will have to remove the acquisition board to re-install the connector. If the plate does not fall from the board, you will have saved some time and work.

To replace a connector:

1Remove the acquisition board from the instrument.

2 Follow the procedure for removing the hybrid.

Figure 6-30

Removing the Hybrid Connector

3Remove the two screws to remove the connector.

4Re-assemble by following all procedures, taking note of the following:

• Use a T6 torque driver set to 0.34 Nm (3 in-lbs) to tighten the hybrid connector screws.

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Agilent Technologies 45A, 46A, 54835A manual Removing the Hybrid Connector