NEC POWERMATE ES 5200 - SERVICE, Service Manual

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Disassembly and Reassembly 3-67
Front Control Board Removal
The following sections describe how to remove the front control board from
small desktop, desktop, and minitower systems.
Removing the Front Control Board — Small Desktop or Desktop
Remove the front control board from a small desktop or desktop system by
following these steps.
1.
Turn off the system and disconnect the system power cord.
2.
Ensure that all external cables are disconnected from the front and rear of
the system.
3.
Remove the system unit cover (see “Removing the Small Desktop or
Desktop Cover”).
4. Remove the front panel (see “Removing the Front Panel — Small Desktop”
or “Removing the Front Panel — Desktop”).
5. Label and disconnect the front feature connector from the riser board. See
one of the appropriate figures for the location of the connector.
„
“Riser Board Auxiliary Cable Connectors — Small Desktop”
„
“Riser Board Auxiliary Cable Connectors — Desktop”
For small desktop system it may be helpful to remove the hard drive for
easier access to the front feature connector on the riser board (see
“Removing a 3 1/2-Inch Hard Drive — Small Desktop”).
6.
Remove the screws securing the front control board to the front of the
chassis (see the following figures).
„
For the small desktop system remove the six screws.
„
For the desktop system, remove the three screws and slip the control
board out from under the clips along its top edge.