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318 Chapter7

Replacing Major Assemblies

A7 Analog Interface Assembly

This procedure applies to:

8590 E-Series and L-Series spectrum analyzers

8591C cable TV analyzers

8594Q QAM analyzers

CAUTION Use ESD precautions when performing this replacement procedure.

Removal

1. Remove the instrument cover assembly. Refer to the “Instrument

Cover.” removal procedure.

2. Remove the four screws (1), which secure the A7 Analog Interface

assembly to the right side of the instrument chassis. See Figure 7-9.

3. Note how the cables and wiring attached to the A7 assembly are

dressed. (This information will be used later during the replacement

procedure.)

4. Pull the A7 assembly partially out of its slot and disconnect W12,

W13, W34, W35, W36, and W51 from the A7 assembly (2).

5. If you have an A7A1 Tracking Generator Control assembly on your

8590L, 8591C, or 8591E, you will need to remove the SMA cables

attached to it as you are removing the A7 assembly.

6. Remove the A7 assembly and place it in a static-safe container.

Agilent Technologies 8590L User Manual

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