Replacing An Optional Board; Replacing The System Panel; Removal Of The System Panel - Epson RC520 Manual

Maintenance 4. Control Unit
(10) Mount the board holder assembly in the Control Unit.
(11) Mount the Top Cover to the Control Unit.
(12) Connect the cables that have been disconnected before the board replacement to the

4.4 Replacing an Optional Board

When replacing an optional board(s), refer to the Maintenance 4.2 Replacing the MIB
and follow the same procedure. If there is any jumper set on the old board, it must be
set on the new board exactly the same as on the old board.

4.5 Replacing the System Panel

4.5.1 Removal of the System Panel

(1) Shut down Windows, and then turn OFF the power on both the Control Unit and
(2) Disconnect the Operation Unit, ATTEND (TEACH) Control Device, or OPTIONAL
(3) Remove the HDD. For the procedure, refer to the Maintenance 4.8 Replacing the
(4) Remove four Top Cover screws on the back of the Control Unit.
(5) Remove the Top Cover from the Control Unit.
(6) Remove the board holder assembly form the Control Unit.
(7) Disconnect the cable from the MIB while releasing the connector.
(8) Disconnect any cables that are connected to the CD-ROM drive, HDD, and FDD.
■ Do not shock, shake, or drop any parts during maintenance. When the parts
related with data (the CD-ROM drive, FDD, HDD, etc.) are shocked physically,
they may be damaged and may also cause data loss during data
loading/saving.
CAUTION
(9) Remove the two FDD mounting screws and remove the FDD.
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back of the Control Unit.
Drive Unit.
DEVICE Dummy Plug from the OPTIONAL DEVICE connector.
HDD (Hard Disk Drive).
(If you cannot disconnect the cable from the HDD at this step, disconnect the cable
from the HDD at Step (10) while the Drive Bay Unit is pulled up.)
FDD
RC520 Rev.7