ABB IRC5 Product Manual page 132

4 Repair activities, controller IRC5
4.7. Replacement of motherboard in computer unit DSQC639
Continued
10. Gently lift the motherboard out.
Refitting
The procedure below details how to refit the motherboard in the computer unit.
130
Action
8. Remove the PCI boards.
9. Remove the nine motherboard attachment
screws
Loosen the motherboard from the snap-lock
Action
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
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 27
3. Gently lift the motherboard out of the ESD
safe bag and fit it into position in the computer
unit.
Note/Illustration
Detailed in section
boards in the computer unit DSQC639
on page 137.
B
xx0800000205
• A: attachment screw (9 pcs)
• B: snap-lock
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.
Note/Illustration
26.
Always grip the board around the edges
to avoid damage to the board or its
components!
3HAC027707-001 Revision: D
Replacement of PCI
Continues on next page