2/2000DocuPrint N24, N32, N40, N3225, and N4025 4-93 Repair ProceduresREP 4.10.7 System Controller PWBParts List on PL 11.3Removal1 Switch off the printer power and disconnect theAC Power Cord.NOTE: Inform the customer before disconnecting and network cables from the printer.2 Disconnect any interface cables connected to the System Controller PWB.3 Loosen the two knurled screws that secure the System Controller PWB to the printer (Figure4.10.7a).4 Slide the System Controller PWB out of the printer.5 Place the System Controller PWB on a flat, non-conductive surface.6 Remove the two screws that secures the Network Interface PWB (if installed) to the panel(Figure 4.10.7a).7 Disconnect the Network Interface PWB (if installed) from J1 on the System Controller PWB.Figure 4.10.7a. System Controller.Replacement1 Place the System Controller PWB on a flat, non-conductive surface.2 Reinstall the Network Interface PWB (if necessary).3 Slide the System Controller PWB into the printer.4 Tighten the two thumbscrews that secure the System Controller PWB to the printer.5 Reconnect the interface cables to the connectors on the System Controller PWB.6 Verify proper operation.CAUTIONThese components are susceptibleto electrostatic discharge. Observeall ESD procedures to avoiddamage.