AT&T PC 6300 - Replacing Display Controller

MAINTENANCE
Replacing Display Controller
1. Turn the System Module and all external devices OFF.
3. Loosen the four screws that secure the upper and lower
covers.
4. Slide the upper cover forward approximately 0.5 inch and
lift it from the System Module.
5. Remove all expansion boards from the Bus Converter.
6. Unplug the +15 V dc power cable from rear of the Display
Controller.
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2. Unplug the ac power cable from the rear panel.
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