Chapter 13 255
Assembly Replacement Procedures
Midplane Assembly
Midplane 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 reference bracket. Refer to the Top Brace and
Reference Bracket removal procedure.
4. Remove the L.O. assembly. Refer to the L.O. Assembly removal procedure.
5. Remove the CPU assembly. Refer to the CPU Assembly removal procedure.
6. Remove the power supply assembly. Refer to the Power Supply Assembly
removal procedure.
7. Refer to Figure 13-20. Remove the power supply support bracket (1) by
removing the two screws (2).
Figure 13-20 Power Supply Bracket
8. Refer to Figure 13-21. Remove the six screws (2) attaching the midplane
assembly (1) to the midplane bracket. The midplane assembly can now be
pulled up from the chassis by leveraging up on the ejectors.
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