Removal and Installation Procedures

￿￿Backplane Board

CAUTION

To avoid the permanent loss of waveform files, note the following: A lithium battery which maintains the nonvolatile memory during power-off time is located on the A5 Backplane board. The nonvola- tile memory that contains the waveforms and their setup parameter data is located on the A6 CPU board. Removing either board will cause the waveform files, sequence files, and autostep files in nonvolatile memory to be permanently lost. Before removing either the A6 CPU board or the A5 Backplane board, save the waveform files, sequence files, and autostep files in the instrument nonvolatile memory to a floppy disk. Then, after reinstalling the board(s), reload the files into nonvolatile memory.

1.Assemble equipment and locate modules to be removed:

a.You will need a screwdriver with a size T515 Torx tip and a 1/45inch nut driver to do this procedure.

b.Locate the modules to be removed in the locator diagram, Internal Modules, in Figure 654.

2.Orient instrument: Set the AWG2005 with the left side down on the work surface and the top facing you.

3.Remove A23 Analog board or A3 Analog board (Option 02): Do the procedure, A23 Analog board or A3 Analog board, on page 6529.

4.Remove all circuit boards: Do the procedure, Circuit Boards, on page 6545.

5.Remove A5 Backplane board:

a.Remove the five screws and a nut securing the shield cover (see Figure 6522).

b.Grasp the shield cover, and take it out.

c.Disconnect the ribbon interconnect cables at J8 on the A5 Back5 plane board (see Figure 6522).

d.Disconnect the flat cable at J6 on the A5 Backplane board.

e.Remove the remaining four screws securing the A5 Backplane board to the chassis.

f.Lift the A5 Backplane board sideways, and then take it out.

6.Reinstallation:

a.Install the A5 Backplane board: Do substeps 5a-5f in reverse order to install the board.

￿WG￿￿￿￿ Service Manual

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