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panel, disconnect the gray cable at the Controller Board connection by pulling the white plastic
tab installed on the connector. The cable removal is shown in Figure 1.
Caution:
The two connectors attached to the front panel are delicate connectors. These connectors
should only be removed if it is necessary to replace either the display assembly or the keyboard
assembly.
•
To reinstall the front panel, reverse the procedure.
Figure 1. Cable Removal
STEP 3: Controller Board Access
To access the controller circuit board, remove the four screws in the shield over the board. The shield
will lift up and off. The controller printed circuit board is now accessible for troubleshooting or testing or
replacing. Shield removal is shown in Figure 2.
Figure 2. Shield Removal
