CASMED 740 MONITOR SERVICE MANUAL21-02-0174 REV. 02 05/0898REPLACING THE MAIN CONTROL BOARDThe Main Control board is part of the Front Case Assembly.Removal1) Complete the steps in Prior to Disassembly and Monitor Disassembly.2) Complete the steps in Replacing the NIBP module to remove the NIBP module.3) Complete the steps in Replacing the SpO2 Module to remove the SpO2 module.4) Complete the steps in Replacing the Temperature Module to remove the Temperaturemodule.5) Remove the four (4) screws that secure the Main Control board to the Front Case.6) Fold the Main Control board out from the Front Case and remove the ribbon cable fromthe J6 Front Panel Keyswitch connector. Remove the board.7) Remove the Display Shield from over the LED displays on the Control Board.Figure 19: Replacing the Main Control BoardInstallation1) Place the Display Shield over the LED displays.2) Adhere the appropriate labels to the LED displays (ADULT, NEO, TEMP).3) Install the ribbon cable, from the front panel Keyswitch, into the J6 connector.4) Fold the Main Control Board assembly over onto the Front Case.NOTE:Ensure the Display Window is free of dust and scratches before assembly.NOTE:Be careful not to crimp the ribbon cable between the PC Board and the Front Case.
