4 Repair activities, controller IRC5
4.15. Replacement of PCI boards in the computer unit DSQC639
2513HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Removal
The procedure below details how to remove the PCI cards from the computer unit.
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 unit. Detailed in section Replacement
of computer unit DSQC639 on
page 226.
4. Open the computer unit. Detailed in section Replacement
of motherboard in computer unit
DSQC639 on page 235.
5. Identify the card to be replaced. The barcode sticker contains
information on type designation.
6. Disconnect any cables to/from the card Make a note of which cables are
disconnected.
7. Remove the attachment screw on top of the card
bracket.
xx0600002916
• A: attachment screws
NOTE! Always grip the card
around the edges to avoid
damage to the card or its
components!
8. Gently lift the card straight up. NOTE! Immediately put the card
in an ESD safe bag or similar!
Continued
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