02/20002-32 DocuPrint N2025/N2825RAP 30Initial IssueStatus Indicator Repair Analysis ProceduresRAP 30 Laser AssemblyProcedureEnter Diagnostics and select Component Test. Scroll to ROS Motor and press Enter. You canhear the ROS Motor spin up.Y NSwitch the printer power off. Remove the Left Side Cover (REP 1.1) and remove the PrintEngine Controller PWB Cover (REP 8.5). Switch the printer power on. Measure the volt-age between P/J11 pin 11 on the Print Engine Controller PWB and frame ground. Thevoltage is 24.0 VDC.Y NMeasure the voltage between P/J16 pin 9 on the Print Engine Controller PWB andframe ground. The voltage is 24.0 VDC.Y NReplace the LVPS (REP 8.6).Replace the Print Engine Controller PWB (REP 8.5).Enter Diagnostics and select Component Test. Scroll to ROS Motor. Measure the voltagebetween P/J11 pin 13 and frame ground. Press the Enter key. The voltage drops from5.8 VDC to 0.6 VDC.Y NReplace the Print Engine Controller PWB (REP 8.5).Replace the Laser Assembly (REP 7.1).Switch the printer power off. Remove the Left Side Cover (REP 1.1) and the Print Engine Con-troller PWB Cover (REP 8.5). Switch the printer power on. Check the voltage between P11 pin8 and frame ground. There is +5.0VDC between P11 pin 8 and frame ground.Y NMeasure the voltage between P/J21 pin 4 and frame ground. There is +5.0VDCbetween P/J21 pin 4 and frame ground.Y NMeasure the voltage between P/J21 pin 3 and frame ground. There is +5.0VDCbetween P/J21 pin 3 and frame ground.Y NSwitch the printer power off. Remove the Lower Rear Cover (REP 1.7). Discon-nect P/J16 from the Print Engine Controller PWB. Measure the resistancebetween pin 5 of the disconnected plug and P/J161 pin 10 on the LVPS. Thereis continuity between P16 pin 5 and P/J161 pin 10.Y NReplace the Print Engine Controller Harness (PL 9.2).Replace the LVPS (REP 8.6).Replace the Print Engine Controller PWB (REP 8.5).Measure the voltage between P/J21 pin 3 and frame ground. There is +5.0VDCbetween P/J21 pin 3 and frame ground.Y NOpen the Top Cover and remove the Print Cartridge. Inspect the tab on the left upperportion of the Electronic Printing Cartridge that actuates the Print Cartridge SensorAssembly. The tab on the Print Cartridge is intact.Y NReplace the Print Cartridge (PL 8.1).Press and release the Print Cartridge Sensor Assembly Actuator. The Print Car-tridge Sensor Assembly Actuator lever moves smoothly.Y NReplace the Print Cartridge Sensor Assembly (REP 7.4).Enter diagnostics and select Component Test. Scroll to Sensor Input test and pressEnter. Manually actuate the Print Cartridge Sensor Assembly Actuator. The numberon the LCD increments each time you press and release the actuator.Y NReplace the Print Cartridge Sensor Assembly together with the harness (REP7.4).Replace the Print Engine Controller PWB (REP 8.5).Replace the Print Engine Controller PWB (REP 8.5).Run a test print. On the Print Engine Controller PWB, measure the voltage between P/J11 pin5 and frame ground and between P/J11 pin 6 and frame ground. The voltage on both pinschange from 0.0VDC to +1.1VDC then back to 0.0VDC.Y NReplace the Print Engine Controller PWB (REP 8.5).Replace the Laser Assembly (REP 7.1). The problem still appears.Y NProblem solved.Go to RAP 44.AABB
