4 Replacement Procedures 4.14 System Board
4. Disconnect the speaker cable.
Figure 4-32
Removing the speaker cable
5. Lift out the system board.
Installing the System Board
To install the system board, follow the steps below and refer to the figures in the preceding
section.
1. Seat the system board in the chassis.
2. Secure two hexagonal screws to the back of the system board.
3. Secure four M2.5x3 screws to the system board.
4. Seat the Express PC Board and Express Bracket and secure their screws.
4-30
[CONFIDENTIAL]
Detroit 20 /Detroit 20E Series Maintenance Manual
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