02/20002-13DocuPrint N2025/N2825 RAP 3Status Indicator Repair Analysis ProceduresInitial IssueRAP 3 DC Power LoadingInitial ActionsPerform RAP 2 DC Power before starting this RAP.WARNINGAC input voltages can be lethal. Use extreme care while checking the voltages on theLVPS.Disconnect the power cord while checking the continuity of fuses and while removing orreinstalling the components.ProcedureSwitch the printer power off. Remove the Lower Rear Cover (REP 1.7). Disconnect the follow-ing from the LVPS:• P/J161 (Print Engine Controller PWB)• P/J163 (System Controller PWB)• P/J164 (Main Motor)• P/J165 (Main Fan)• P/J166 (LVPS Fan)• P/J168 (5VDC Power Supply)Switch the printer power on and measure the voltages listed in Table 1 on the LVPS.All voltages are correct.Y NReplace the LVPS (REP 8.6).Switch the printer power off. Reconnect P/J161 to the LVPS. Switch the printer power on andmeasure the voltages listed in Table 1. All the voltages are correctY NSwitch the printer power off. Remove the Left Side Cover and the Print Engine ControllerPWB Cover. Reconnect all the P/Js to the LVPS. Disconnect the following from the PrintEngine Controller PWB:• P/J11 (Laser)• P/J21 (Print Cartridge Sensor)• P/J14 (Toner Sensor)• P/J12 (Tray 1 Feed head components/Tray 1 Low Paper Sensor)• P/J22 (Registration Clutch)• P/J13 (Feeder 2/3)• P/J17 (Fuser Control PWB / Fuser)• P/J19 (Duplex Assembly/OCT)• P/J18 (HVPS/Registration Sensor)• P/J20 (Tray 1 Size Sensor/MBF Home Sensor)Switch the printer power on and measure the voltages listed in Table 1. All voltages arecorrect.Y NReplace the Print Engine Controller PWB (REP 8.5).Switch the printer power off. Reconnect one of the disconnected plugs. Switch the printerpower on. Measure the voltages listed in Table 1. All the voltages are correct.Y NReplace the component just connected to the Print Engine Controller PWB.Repeat the step with the next disconnected plug.Switch the printer power off. Reconnect one of the disconnected plugs. Switch the printerpower on. Measure the voltages listed in Table 1. All the voltages are correct.Y NReplace the component just connected to the LVPS.Repeat the step with the next disconnected plug.Table 1 LVPSRed Lead Black Lead VoltageP/J161 pin 10 Frame Ground +5.0VDCP/J161 pin 11 Frame Ground +3.3VDCP/J161 pin 3 Frame Ground +24.0VDCAA
