CAB MACH 4.3S/200B Service Manual

Also see for MACH 4.3S/200B: Operator's manual

172 Changing Assembly Parts2.11 Changing the Circuit BoardDanger!Danger of electrocution. Before opening the pinter cover disconnect the device from the power source and wait at least oneminute until the device has discharged the remaining residual energy.2123249562871 Circuit board CPU2 4 ScrewsConnections3 CON8 - stepper motor4 CON9 - power supply5 CON10 - printhead6 CON11 - sensors7 CON12 - control panel8 Ground wire9 CON13 - VentilatorFig. 11 Changing the CPU circuit board1. If possible save the printer configuration onto an external memory medium  Printer configuration.2. Disconnect the printer from the power supply.3. Disconnect all interface cables from the back of the printer.4. Remove all removable storage mediums.5. Remove the printer cover ( 2.3 on page 8).6. Disconnect all push on connectors (3-7, 9) from the CPU circuit board.7. Remove the four screws (2) of the circuit board.8. Insert the new CPU circuit board (1) with the previous four screws (2) whilst connecting the ground wire (8).9. Reconnect all the push on connectors (3-7, 9) to the circuit board.10. Reassemble the cover ( 2.3 on page 8).11. Reconnect all interface cables from the back of the printer.12. Reestablish the power connection.13. If required, guide the device through an update.14. Synchronize the light barrier  Configuration Manual.15. If possible, load the settings from the removable storage device via the control panel  Configuration Manual.