MX-M503N MX-PB11 15 – 2
C. Pull out the control PWB
• If cables are connected to the control PWB unit, remove all
cables.
1) Push the location indicated in the illustration to unlock, and
remove the cover from the right cabinet rear.
2) Remove the screw from the right cabinet rear.
3) Remove the right cabinet rear.
4) Remove the two screws from the control PWB unit.
• If the fax box unit is installed, carry out steps 5), 6), and 7)
additionally.
5) Pull out the control PWB unit and remove the snap band.
6) Remove the interface cable from the frame.
7) Remove the connector.
8) Pull out and remove the control PWB unit.
D. HDD installation
1) Put the cushion material used for packing the MX-PB11
beneath the MFP PWB frame.
NOTE: Be sure to perform this procedure in order to protect the
memory and the Flash ROM on the MFP PWB.
If this procedure is neglected, a stress may be applied to
the memory and the Flash ROM on the MFP PWB, causing
a trouble.
2) Install the HDD to the MFP PWB frame.
When installing the HDD to the MFP PWB frame, attach the
anti-vibration rubber to the HDD frame side and fix it with a
screw.
3) Connect the HDD cable to the HDD.
4) Replace the Flash ROM (Program 1/Program 2) installed to
the MFP PWB with the Flash ROM attached to the MX-PB11.
E. Reattach the control PWB and the right cabinet
rear
• If the fax box unit is installed, carry out steps 1), 2), and 3) addi-
tionally.
1) Connect the interface cable to the control PWB unit.
2) Push the interface cable into the recessed portion of the sheet
metal on the control PWB unit.
3) Attach the snap band to the sheet metal of the control PWB
unit.
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