02/20002-31DocuPrint N2125 RAP 29Status Indicator Repair Analysis ProceduresInitial IssueRAP 29 Main Motor AssemblyProcedureEnter Diagnostics and select the Component Test. Scroll to Main Motor Operation and pressEnter. The Main Motor rotates.Y NSwitch the printer power off. Remove the Left Interface Cover (1.1), Left Cover (1.2), andLeft Plate Assembly (1.11). Ensure the Rear Cover is closed. Switch the printer power on.Measure the voltages listed in Table 1 on the Main Motor Assembly.All voltages are correct.Y NThe voltages on pins 1, 2, and 3 are correct.Y NOn the Print Engine Controller PWB, check the voltage between P/J28 pins 1,2, and 3 and frame ground. All three readings are +24.0 VDC.Y NReplace the LVPS (REP 9.5).On the Print Engine Controller PWB, check the voltage between P/J30 pin 2and frame ground. The voltage is 24VDC.Y NCheck the wiring between the Print Engine Controller PWB and the RearInterlock. Repair or replace the wiring or replace the Rear Interlock Switch(REP 9.10).Replace the Print Engine Controller PWB (REP 9.3).The voltage on pin 7 is correct.Y NOn the Print Engine Controller PWB, check the voltage between P/J28 pin 7and frame ground. The voltage is +5.0 VDC.Y NReplace the LVPS (REP 9.5).Replace the Print Engine Controller PWB (REP 9.3).On the Print Engine Controller PWB, check the voltage between P/J28 pin 10 andframe ground. The voltage is 3.3 VDC.Y NReplace the LVPS (REP 9.5).Replace the Print Engine Controller PWB (REP 9.3).Enter Diagnostics and select the Component Test. Scroll to Main Motor Operation. On thePrint Engine Controller PWB, measure the voltage between P/J29 pin 7 and frameground. Press the Enter key. The voltage drops from 5.0 VDC to 0.0 VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Replace the Main Motor Assembly (REP 8.1).Problem solved, return to Initial Actions and continue.Table 1 Main Motor HarnessFrom To VoltageCN101 - Pin 1 Frame Ground +24.0 VDCCN101 - Pin 2 Frame Ground +24.0 VDCCN101 - Pin 3 Frame Ground +24.0 VDCCN101 - Pin 7 Frame Ground +5.0 VDCCN101 - Pin 8 Frame Ground +3.3 VDCAABBCCmanuals4you.commanuals4you.com
