IBM SurePOS 700 Series, Hardware Service Manual

Page: 64 / 132

Replacing the front USB module (Models 743, C43, E43, 783, E83, 784,
C84, and E84 only)
To remove the front USB module:
1. Disconnect the external option cable attached to the USB module.
2. Follow the steps in “Removing the pullout tray” on page 37 to slide the pullout
tray halfway out of the unit frame.
3. Disconnect the internal cable attached to the back of the USB module.
4. Remove the two screws holding the USB module to the pullout tray:
v
One screw is attached to the front of the pullout tray
v The other screw is attached inside the pullout tray, to the bottom.
5. Pull the USB module from the front of the unit.
To replace front USB module, reverse the previous steps.
Replacing the spline
Note: Spline handles are not present in all systems.
To remove the spline:
1. Follow the steps in “Removing the pullout tray” on page 37 to remove the
pullout tray completely from the unit frame.
2. Locate any installed feature cards and retaining screws (
A
in Figure 32).
Remove the screws and pull the feature card out of the system.
3. Note the cable routing, and then carefully disconnect all power and
communications cables from the riser card.
Note: The riser card main power connector has a latch on the bottom of it that
you must push to disconnect it.
4. Completely loosen the spring screw (
A
in Figure 33 on page 47) holding the
front of the spline down to the pullout tray.
A
Figure 32. Removing feature cards
46
SurePOS 700-723/743/783/784 Hardware Service Guide