CASMED 740 MONITOR SERVICE MANUAL21-02-0174 REV. 02 05/08100Installation1) Remove the liner from the rear of the keyswitch.2) Feed the ribbon cable through the slot on the Front Panel and carefully position thekeyswitch into the recess on the Front Case. Apply even pressure across the face of thekeyswitch to secure it in place.NOTE:Use extreme caution when handling and positioning the membrane keyswitch. Do not bend,crease or pinch the keyswitch or the tail connector. Do not remove and reapply the keyswitch.3) Plug the ribbon cable connector into the J6 connector on the Main Control Board.4) Using a pair of household scissors cut back the shield tail flush to the front panel.5) Finish assembling the monitor by following the steps in the Installation section ofReplacing The Main Board.MODULE SERVICE PROCEDURESREPLACING THE RS232/NURSE CALL INTERFACE BOARDRemoval1) Remove the one (1) screw that secures the Module to the monitor’s rear case.2) Remove the three (3) screws that secure the RS232/Nurse Call Interface Board to theModule case.3) Remove the board and if necessary, disconnect the cable assembly from theTemperature Interface Board.Figure 21: Replacing the RS232/Nurse Call Interface Board