AT&T PC 6300 - Page 431

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MAINTENANCE
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Note 1: This error message will be displayed if a diskette
is not present in the MFD Unit. If diskette is present,
check the MFD Unit power and signal cables and.verify
that they are connected properly and then check to see if
the cables are in good condition. If cables are okay, replace
MFD Unit. If an error message is still received, the MFD
Controller is faulty; replace the Motherboard.
Note 2: This error message will be displayed if the ■
control cable is not connected properly. Check control
cable for proper connections. Refer to procedures for
replacing HDU for information on the connection of the
cables. If cables are okay, the problem resides in either
the HDU Controller, Bus Converter, or HDU, respectively.
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