02/20002-12 DocuPrint N2125RAP 2Initial IssueStatus Indicator Repair Analysis ProceduresRAP 2 DC PowerThis procedure is used to troubleshoot the Low Voltage Power Supply.ProcedurePerform RAP 1 before starting this RAP. If RAP 1 results are correct, switch the printer poweroff and disconnect the printer power. Remove the Left Interface Cover (REP 1.1), Left Cover(REP 1.2), and the Left Plate Assembly (REP 1.11). Connect printer power. Switch the printerpower on. Measure the voltage on the LVPS between P/J285 pins 1 and 2. The voltagematches the line voltage.Y NRepair/replace the AC Wire Assembly (PL 10.1).Measure the voltage between both sides of the Fuse F1 and frame ground. Both readingsmatch the line voltage.Y NSwitch the printer power off. Replace fuse F1 (125V - 10A / 250V - 3A). Switch the printerpower on. Measure the voltage between both sides of the Fuse F1 and frame ground.Both readings match the line voltage.Y NReplace the LVPS (REP 9.5).Problem Solved.Measure the voltage between LVPS P/J281 pin 1 and frame ground. The voltage is +24VDC.Y NOn the LVPS, measure the voltage between P/J284 pin 2 and frame ground. The voltageis +24VDCY NSwitch the printer power off. Disconnect printer power. Disconnect P/J 281. Connectprinter power. Switch the printer power on. Measure the voltage between LVPS P/J281 pin 1 and frame ground. The voltage is +24VDC.Y NReplace the LVPS (REP 9.5).Go to RAP 3.Measure the voltage between P/J 284 pin 1 and frame ground. The voltage is +24VDC.Y NCheck the Front Cover. The Front Cover is closed and actuating the interlockswitch.Y NRepair or replace the defective cover/interlock switch as necessary.Check the continuity through the interlock switch. Replace if necessary.Replace the LVPS (REP 9.5).Check the voltages listed in Table 1.All voltages in Table 1 are correct.Y NGo to RAP 3.Return to Initial Actions or to the procedure that sent you here.Table 1 Low Voltage ReadingsRed Lead Black Lead VoltageP/J281 pin 7 Frame Ground +5.0VDCP/J281 pin 10 Frame Ground +3.3VDCP/J281 pin 1 Frame Ground +24.0VDCAA
