4 Repair activities, controller IRC5
4.13. Replacement of DDR SDRAM memory on motherboard in computer unit DSQC639
2433HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Refitting
The procedure below details how to refit the DDR SDRAM memory on the motherboard in
the computer unit DSQC639.
5. Gently lift the DDR SDRAM memory straight
up.
xx0600003033
• A: DDR SDRAM memory
NOTE! Always grip the memory around
the edges to avoid damage to the
memory or its components!
NOTE! Immedialety put the memory in
an ESD safe bag or similar!
Action Note/Illustration
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
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