3-84 Xerox Internal Use Only Phaser 6500/WorkCentre 6505 Service ManualError Messages and CodesIOT Fan Motor FailureApplicable Error Code• 042-3137 Check the power to the EEPROMBoard.Disconnect J42 from the MCU Board.Is the voltage across P42-3 <=> groundon the MCU Board, about +3.3 VDC?Replace theEEPROM Board(SFP,page 8-139;MFP,page 8-161).Go to step 8.8 Replace the MCU Board. (SFP,page 8-138; MFP, page 8-160)Does the error still occur when thepower is turned Off and On?Go to“ElectricalNoise” onpage 4-79.Complete.a. Electrical noise could be a possible cause. Go to “Electrical Noise” onpage 4-79 to make sure.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ Fan (SFP PL8.1.1; MFP PL8.2.8)■ LVPS (SFP PL8.2.1; MFP PL8.2.12)■ MCU Board (SFP PL8.2.13; MFPPL8.3.6)■ LVPS Main Harness Assy (PL9.1.3)■ “Map 3 - SFP IP Board, LVPS, and Drive”on page 10-8■ “Map 4 - SFP MCU Board” onpage 10-9■ “SFP LVPS” on page 10-26■ “Map 8 - MFP LVPS, IP Board, andDrive” on page 10-17■ “Map 9 - MFP MCU Board and HVPS”on page 10-18■ “MFP LVPS” on page 10-39■Troubleshooting ProcedureStep Actions and Questions Yes No1 Does the error still occur when thepower is turned Off and On?Go to step 2. Complete.2 Check the Fan for rotation.In the Printer Diagnostic tests, useEngine Diag > Motor Test > FanHIGH.During this check, close the FrontCover.Does the Fan function normally?Replace theMCU Board.(SFP,page 8-138;MFP,page 8-160)Go to step 3.Troubleshooting Procedure (continued)Step Actions and Questions Yes Nohttp://www.manuals4you.com
