4 Replacement Procedures
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. Connect Fan to the Fan connector, and then secure it with three screws.
3. Secure the system board to the CRT port with two 4.75x 9.6 NI hexagonal screws.
4. Secure the system board to the printer port with two 4.75x 9.6 NI hexagonal screws.

4.17 Direct Play Button Board

Removing the Direct Play Button Board
To remove the Direct Play Button board, first remove the Keyboard, then follow the steps below:
1. Remove two M2.5x 3 screws and FFC from top cover.
M2.5X3
FFC
Figure 4-32 Removing the Direct Play Button board
4-36 Tecra A3/S2 Series Maintenance Manual