Agilent Technologies 46A, 45A, 54835A manual To remove and replace the acquisition board assembly

Chapter 6: Replacing Assemblies

To remove and replace the acquisition board assembly

To remove and replace the acquisition board assembly

Use this procedure to remove and replace the acquisition assembly. When necessary, refer to other removal procedures.

1Disconnect the power cable and remove the cover.

2 Remove the Quick-Probe subpanel assembly.

3 Remove the hex nuts that secure the BNC connectors to the front panel.

Use a 9/16” nut-driver to remove the hex nuts. See figure 6–9.

4Disconnect the Aux Out SMB cable W18 from J10 and the black Comp wire W19 from J4 on the Acquisition assembly.

These cables are located behind the Aux Trigger Input BNC connector. See figure 6–10.

5Disconnect the following cables from the inside edge of the Acquisition assembly:

•Power supply control cable W2

•Probe control cable W12

•Auxiliary power supply cable W4

•+5 V power supply cable W3

•PC power cable W5

•Line sync cable W6

•Acquisition cable W11

•Fan cable W21

These cables are attached to J2, J3, J5, and J11 through J16.

6Remove the 9 Torx T10 screws that secure the acquisition board to the chassis, then slide the board back from the front panel until the BNC connectors clear the panel. Lift the board away from the chassis.

7To re-install the acquisition board assembly, reverse the above procedure. Be sure to observe correct polarity for all cables.

Figure 6-16

Removing the Acquisition Assembly

6–14