ABB IRC5 Product Manual page 207

3HAC021313-001 Revision: P
4.9. Replacement of motherboard in computer unit DSQC639
Action
2.
esd
WARNING!
The unit is sensitive to ESD. Before handling
the unit please read the safety information in
the section WARNING - The unit is sensitive
to ESD! on page 31
3. Remove the computer unit.
4. Remove the five attachment screws, and
remove the cover plate.
WARNING!
Be careful with the fan cable when opening
and removing the cover plate. The fan cable
must not be stretched.
5. Disconnect the fan cable from the mother-
board.
6. Remove the Compact flash disk.
7. Remove the PCI boards.
8. Remove the ten motherboard attachment
screws
9. Gently lift the motherboard out.
4 Repair activities, controller IRC5
Note/Illustration
Detailed in section
computer unit DSQC639 on page 200
xx0600002913
• A: attachment screw (5 pcs)
• B: fan cable
Detailed in section
Compact Flash memoryin computer unit
DSQC639 on page
Detailed in section
boardsin the computer unit DSQC639
on page 211.
xx0600002914
• A: attachment screw (10 pcs)
Always grip the board around the edges
to avoid damage to the board or its
components!
Immediately put the board in an ESD
safe bag or similar.
Continues on next page
Continued
Replacement of
Replacement of
223.
Replacement of PCI
205