528 N9030B PXA Signal Analyzer Service Guide
Assembly Replacement Procedures
Motherboard Assembly
Motherboard Assembly
Removal
1. Remove the instrument outer case. Refer to the Instrument Outer Case
removal procedure.
2. Remove the rear panel. Refer to the Rear Panel removal procedure.
3. Remove the top brace and power supply bracket. Refer to the Top Brace
and Power Supply Bracket removal procedure.
4. Remove the Front Frame Assembly. Refer to the Front Frame Assembly
removal procedure.
5. Remove the reference assembly. Refer to the Reference Assembly removal
procedure.
6. If Option B1X is present in the instrument, remove the two option boards.
7. Remove the CPU assembly. Refer to the CPU Assembly removal
procedure.
8. Remove the power supply assembly. Refer to the Power Supply Assembly
removal procedure.
9. Remove the AIF/DIF assembly. Refer to the AIF/DIF Assembly removal
procedure.
10.Remove the Front End Control assembly. Refer to the Front End Control
Assembly removal procedure.
11.Remove the LO Synthesizer assembly. Refer to the LO Synthesizer
Assembly removal procedure.
12.Remove the Midplane assembly. Refer to the Midplane Board Assembly
removal procedure.
13.Remove the RF bracket. Refer to Figure 16-7 on page 439.
14.Remove the fan assembly. Refer to the Fan Assembly removal procedure.
15.Refer to Figure 16-90 and Figure 16-91. Remove the midplane bracket (1)
by removing the eight screws (2) (0515-0372) (two on each side and four
on the bottom).
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