Internal Assemblies — Front Chassis 4: Repair
127
Replacement
1 Secure the 18-pin stacking connector to the Processor PCA.
a If the stacking connector is sitting on the Processor PCA, leave it in place, but make sure it is
firmly engaged in the socket.
b If the stacking connector is sitting on the SpO
2
PCA, remove it and insert the short plug into
the J1004 socket on the Processor PCA. Make sure that all pins are properly aligned and the
stacking connector is firmly engaged in the socket.
c If the stacking connector is disconnected, then insert the short plug into the J1004 socket on the
Processor PCA. Make sure that all pins are properly aligned and the stacking connector is firmly
engaged in the socket.
2 Place the SpO
2
PCA in position.
a Line up the screw holes on the SpO
2
PCA with the standoffs on the Processor PCA.
b Line up all 18 holes on the SpO
2
PCA with the 18-pin stacking connector on the Processor
PCA. Push gently to ensure that the pins on the stacking connector are fully engaged.
TIP: Observe the tips of all the 18 pins of the stacking connector show up above the PCA socket.
3 Connect the SpO
2
flex circuit to the SpO
2
PCA. Make sure it slides all of the way in.
4 Place the plastic shield over the SpO
2
PCA and install the two M3x8 (T10) screws.
CAUTION: The left screw is secured in a nylon standoff. Make sure to not cross-thread the standoff and
manually torque to no more than 3 inch-lb. (0.3 N m).
Tighten the other screw to 6 inch-lb (0.7 N m).
5 Bring the Rear Chassis into the upright position. See “Pivoting Rear Chassis Upward” on page 122.
6 Close the case. See “Closing the Case” on page 151.
To Complete the Replacement:
Run Performance Verification and Safety testing as described in the “Performance Verification”
chapter.
To Next Page
Loading...
