Replacing The Pcb Cpu - CAB XD4M/300 Service Manual

3 Replacing Assembly Units
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3.8

Replacing the PCB CPU

Danger!
Risk of death via electric shock!
 Before opening the housing cover, disconnect the device from the mains supply and wait at lease one
minute until the power supply unit has discharged.
1
Fig.15 Changing the PCB CPU
Fig.16 Interfaces on the PCB CPU
4 Control panel
5 Peripheral port
6 Sensors
7 Printhead signals
8 Printhead power supply
9 Power supply unit
10 Stepper motor
3
2
3
4
5
6
7
8
9
10
Removing the PCB CPU
1. If possible, save the printer configuration to a Compact-
Flash card  Configuration Manual.
2. Unplug the printer from the electrical outlet.
3. Detach all interface cables from the back of the printer.
4. Remove all memory cards from the slots.
5. Screw off the rear cover.  3.2 on page 7
6. Unplug all side plug connections from the PCB CPU (2).
7. Remove the four fixing screws (1) from the PCB CPU (2).
8. Remove the PCB CPU (2).
Installing the PCB CPU
1. Place PCB CPU (2) onto the retainers (3).
2. Secure the PCB with four screws (1).
3. Insert all plug connections on the PCB CPU (2).
4. Pull the label sensor toward the cover side as far as
possible and install the rear cover of the printer.
5. Restore all interface connections on the back of the
printer.
6. Connect the power cable at the rear of the printer.
7. Update the firmware if necessary.
8. Adjust the label sensor  Configuration Manual.
9. Load the printer configuration from the memory card if
possible. Otherwise, set the printer configuration via the
control panel  Configuration Manual.
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