MODULE Replacement CMU
1100.4903.82 3.20 E-4
Removing the FRONT MODULE CONTROLLER from the FRONT MODULE
½ Unscrew the two countersunk screws on the cover of the Option FLOPPY DISK DRIVE CMU–U61 or
PCMCIA INTERFACE and carefully pull out the option from the FRONT MODULE towards the front.
½ Place the FRONT MODULE onto a clean surface with the aluminum panel pointing downwards.
½ Unscrew the four screws on the mounting plate at the top, bottom and left and carefully swing away
the mounting plate towards the rear.
½ Pull off the connecting cables to the LCD, DC/AC illumination converter, keyboard membrane and
spinwheel.
Note: When pulling off the connecting cables be careful with the cable connecting to the
keyboard. It is a film cable which can only be disconnected after sliding up the lock of the
film cable plug. Besides, be careful with the ribbon cable connecting to the spinwheel. First
loosen the locking brackets of the plug.
½ MODEL 04: Pull off the ribbon cable from the hard disk to the FRONT MODULE CONTROLLER and
unscrew the four screws of the bracket through the rear of the aluminum panel and remove the hard
disk.
½ MODEL 12: Pull off the ribbon cable from the hard disk to the FRONT MODULE CONTROLLER.
½ Disconnect the fan cable from the printed circuit board of the FRONT MODULE CONTROLLER.
½ Unscrew the eleven combi screws of the FRONT MODULE CONTROLLER board and take out the
FRONT MODULE CONTROLLER.
Installing the new FRONT MODULE CONTROLLER
½ Carefully insert the new FRONT MODULE CONTROLLER, fasten using the eleven combi screws
and reconnect the cable to the fan.
½ MODEL 04: Carefully insert the hard disk, fasten using the four screws through the rear of the
aluminum panel and reconnect the ribbon cable to the FRONT MODULE CONTROLLER.
½ MODEL 12: Carefully reconnect the ribbon cable to the FRONT MODULE CONTROLLER.
½ Replace the memory modules from the old into the new FRONT MODULE CONTROLLER (see
replacing the memory modules).
½ Carefully insert the cable connectors to the controller board, taking care not to reverse the polarities,
and replace the mounting plate in the reverse order.
Installing the option again and completing the instruments
½ Replace the old Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA INTERFACE in the FRONT
MODULE in the reverse order.
½ To install the FRONT MODULE1 in the CMU again proceed in the reverse order.
Note: Make sure to route the cables of the Option FLOPPY DISK DRIVE CMU–U61 or PCMCIA
INTERFACE properly, not to catch them and insert them on the MOTHERBOARD1 before
sliding the FRONT MODULE completely into the CMU.
½ Complete the instrument without causing damage to the cables.
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