AT&T PC 6300 - Replacing Motherboard

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MAINTENANCE
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Replacing Motherboard
1. Turn the System Module and all external devices OFF.
2. Unplug the ac power cable from the rear panel.
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n 3. Disconnect all cables (Display, Keyboard, Printer, etc.) from
the rear panel of the System Module.
' 4. Loosen the two screws that secure the lower cover.
5. Invert the System Module and slide the lower cover forward
approximately 0.5 inch and lift it from the System Module.
6. Unplug the +12 and -12 power cable from the Motherboard
(Figure 5-53).
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