4 Repair activities, controller IRC5
4.11. Replacement of motherboard in computer unit DSQC623
2313HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Removal
The procedure below details how to remove the motherboard and related components.
Action Note/Illustration
1.
DANGER!
Before any work inside the cabinet, please
observe the safety information in section
DANGER - Make sure that the main power
has been switched off! on page 28.
2.
esd
WARNING!
The unit is sensitive to ESD, before
handling the unit please observe the safety
information in section WARNING - The unit
is sensitive to ESD! on page 29
3. Remove the Computer Module. Detailed in section Replacement of
computer unit DSQC623 on page 222.
4. Remove the two attachment screws, and
open the Computer Module by pulling the
cover in the arrow direction.
XX0400000873
• A: attachment screw (2 pcs)
5. Remove the hard disk, flash disk drive bay. Detailed in section Replacement of hard
disk or IDE Flash module and cable in
computer unit DSQC623 on page 268.
6. Remove any PCI cards fitted to the moth-
erboard.
Detailed in section Replacement of PCI
cards in the computer unit DSQC623 on
page 245.
Continued
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