3-86 Phaser 7400 Color Printer Options Service ManualTray [3][4][5][6] Feeder Board Clock Frequency ErrorThe clock frequency on the indicated Feeder Board is inaccurate.Applicable Status Codes:Code 933: Tray 3 Feeder Board CPU clock frequency is inaccurate.Code 934: Tray 4 Feeder Board CPU clock frequency is inaccurate.Code 935: Tray 5 Feeder Board CPU clock frequency is inaccurate.Code 936: Tray 6 Feeder Board CPU clock frequency is inaccurate.Initial Actions:■ Cycle the printer's power.■ If the problem persists follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Option Feeder Board■ Engine Control Board, PL1.1.4■ Print Engine Map 3 (see Book 1)■ Print Engine Motor Driver Board (6/6) (see Book 1)■ Options Map 5 Paper Tray Controller BoardTroubleshooting Procedure TableStep Actions and Questions Yes No1 Check the Option Tray connector fordamage.Is the connector damaged?Replace theconnector.Go to Step 2.2 Check all pins on the OPTIF Harness forcontinuity.Disconnect OPTIF from the Engine ControlBoard and Option connector.Is the harness conductive?Replace the OptionFeeder Board. If theerror persists,replace the EngineControl Board (seeBook 1).Replace theOPTIF Harness.
