Fujitsu SPARC ENTERPRISE M9000 Service Manual page 225

12. Touch each of the designated points on the guide blocks for 5 or more seconds
with your bare hand wearing the antistatic wrist strap.
Guide Block (IOU)
FIGURE 7-14
Touch 5 or more seconds.
13. Mount the replacement IOU by following the removal instructions in
reverse order. Align the IOU with the slot guides, insert it carefully, and secure
it firmly.
Push the eject/lock levers as far as they will go, and then push the knob screws
on the upper and lower eject/lock levers to lock them in position. When the knob
screws remain in position, the IOU is securely mounted.
Note – Mount the dummy (filler) unit in the same manner as IOU. Since the same
levers are used on the dummy (filler) unit, please operate the eject/lock levers in the
same manner.
Caution – Do not forcibly push the IOU when inserting it, even if it is not moving
smoothly. If the IOU is forcibly inserted despite the presence of any obstruction in a
slot or any problem with a connector pin, serious damage may result.
Note – In addition of an IOU, mount the CMU and IOU in the proper location.
Otherwise, the added IOU may not operate after power-on.
Chapter 7 I/O Unit (IOU) Replacement
Step 8 in
7-21