Troubleshooting 7 - 7 OKIFAX 5300/5600Service Manual, P/N 592783017.1.6 Auto Dial FailureStartTest other fax machinesunder the sameconditions. Do theydial automatically?Each location causesthe problem?Solved?NoYesNo1. Check the line cable.2. Check the exchange.Check the following items:* Off-hook bypass OFF (TF No. 20)* MF/DP (Dial parameter)* DP rate (Dial parameter)* DP make ratio (Dial parameter)* Dial type (Dial parameter)* Other dial parametersNote: TF=Technical functionYesNo (Others cannot dialautomatically either)Is the dial tone heardwhen handset is lifted?Check pulse dial/tone dial, dial rate, etc.Check closed network.Return to section 7.1.1Hang up externaltelephone setManual dial OK?DIALING on LCD?TELEPHONE BUSYon LCD?(Note 1)Replace NCU Board.Solved?Replace M17-x Board.Check the following items:* Programmed one-touch keys* Programmed two-digit auto dialcodeYes Solved?YesNoNoYesYesYes No (Only specificlocations)YesYesNoNoNote 1:NoIf you do not have any other fax machine(OKIFAX 5300/5600) for testing,follow this route. Then, if the problem isunsolved, return to the main route.
