TX150 S6 Service Supplement 37
Replacement routines Replacing the system board
Don’t damage the EMI springs which are essential to comply with appli-
cable EMC regulations and satisfy cooling requirements and fire
protection measures.
Ê Place the removed and the new system board on an antistatic surface.
Ê Remove the protective plastic cover from the processor socket of the new
system board and fit it onto the socket of the defective system board which
will be sent back to spares.
I Returned system boards without this cover probably have to be
scrapped.
Ê Check the settings on the new system board (for a description see the
Technical Manual of the system board).
Ê Insert the system board by holding it at a slight angle. Slide the connectors
into the connector panel.
Ê Lower the system board carefully into the chassis.
Ê Adjust the system board. If necessary adjust the position of the system
board with a gentle twisting motion.
I When the system board is in the right position, the centre rings engage
with the holes indicated. The centre rings are placed under the screw
positions 1 and 5.
Ê Fasten the system board with the 9 screws.
Ê Reconnect the cables to their original connectors (see also the cabling plans
in the Options Guide).
Ê Install the memory modules (for a description see the Options Guide).
Ê Install the processor and the heat sink (see the section “Replacing the
processor” on page 30).
Ê Install the system fan (for a description see the Options Guide).
Ê Install all controllers in their former slots (for a description see the Operating
Manual and Options Guide).
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