Keyboard KeypadMouse Connector Shield

connector shield connector shield

keyboard/keypad/ mouse connector

keyboard/keypad/ mouse connector

3 mm

Figure A-6. Keyboard/Keypad/Mouse Connector Shield Removal

Two tabs on the keyboard/keypad/mouse connector shield engage two associated slots on the I/O panel near the keyboard/keypad/mouse connector. Retaining screw D4 attaches the bottom of the shield to the bottom of the I/O panel. To remove the shield, remove retaining screw D4, rotate the bottom of the shield toward the back of the system board assembly, and lift the shield off the I/O panel.

connector JSTDIO

Figure A-7. I/O Interface Cable Removal

To remove the cable, follow these steps:

1. Disconnect one end of the I/O interface cable from connector JSTDIO on the system board.

Connector JSTDIO is located on the underside of the system board.

2. Disconnect the other end of the I/O interface cable from connector JFLEX on the I/O board.

I/O Board

Figure A-8. I/O Board Removal

To remove and replace the I/O board, follow these steps:

1. Remove the I/O interface cable from connector JSTDIO. See the previous subsection in this appendix.

2. Remove the keyboard/keypad/mouse connector shield.

See "Keyboard/Keypad/Mouse Connector Shield" found earlier in this appendix.

3. Remove the four hexagonal standoff screws ST1 through ST4 that secure the serial and parallel port connectors to the I/O panel.

Use a 3/16 nut holder to remove the standoff screws.

4. Remove the side I/O bracket clip.

See "System Board Assembly" in Chapter 4.

5. Lift the I/O board away from the I/O panel.

When replacing the I/O board, make sure that the side I/O bracket clip is positioned so that it rests directly on the I/O board, rather than between the I/O board and I/O bracket (see Figure A-8).

D5 (3 mm)

8 mm

3 mm

4 mm

8 mm

Figure A-9. I/O Panel Removal

To remove and replace the I/O panel, follow these steps:

1. Remove the I/O board.

See the previous subsection in this appendix.

2. Remove the standoff nuts ST1 through ST8

Use a 3/16 nut driver to remove standoff nuts ST1 through ST6 and a 7/32 nut driver for ST7 and ST8.

3. Remove screw D5.

4. Remove the I/O bracket from the system board.

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