WorkCentre 3210/3220 Multifunction Printer Service Manual 4-13General TroubleshootingNo Status LED Error Indication for Front CoverThe Status LED does not indicate an error when the Front Cover is opened.Initial Actions■ Cycle printer power.■ If problem persists, refer to the following procedure.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ Main Controller Board, PL1.0.2■ Power Supply, PL1.0.4■ Front Cover, PL2.0.1■ UI PWB, PL6.4.13■ Map 5 - Main Controller Board■ Power and Fuser■ ADF and ScannerTroubleshooting Procedure TableStep Actions and Questions Yes No1 Check the Front Cover actuator for damage.Is the actuator damaged?Replace theFront Cover(page 8-58).Go to step 2.2 Check the wiring harness connectorsbetween the UI PWB and the MainController Board.Are the connectors securely connected?Replace theUI PBA(page 8-115).Reseat theconnectors.Go to step 2.3 Check the Power Supply signal.Is there +24 V across:CN3-16, CN3-13, CN3-11, CN3-9, and CN3-7 pinsIs there +5 V across:CN3-5, CN3-3, and CN3-1 pinsGo to step 3. Replace thePower Supply(page 8-104).4 Reseat the Control panel connections onthe Main Control Board.Does the error still occur?Go to step 4. Complete.5 Check the Main Controller Board signal.Is there +24 V across:CN10-1, CN10-4, CN10-6, CN10-8, andCN10-10 pinsIs there +5 V across:CN10-12, CN10-14, and CN10-16 pinsComplete. Replace theMainControllerBoard(page 8-100).
