AT&T PC 6300 - Page 143

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INSTALLATIONS
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5. Replace the lower System Module cover and tighten the two
cover screws.
6. Place the System Module back to its upright position.
7. Determine the type (DTC or WD) Controller and locate the
jumpers on the HDU Controller Board (Figure 3-32).
Note: On later versions of the DTC Controller,
some jumpers have been eliminated.
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