Samsung CLX-8640 series - Page 248

4.Troubleshooting
•CheckthesignalandpowerwiththeDVM.(Referto5.SystemDiagram.)
•Ifthecheckedresultisnormal,replacethemotor(JC31-00123B).
•Ifthecheckedresultisabnormal,checkthefollowing.
-If24Vpowerisnotgenerated,replacetheSMPSboard(JC44–00150B(220V)/JC44–00149B(110V)).
-Ifthecontrolsignalisabnormal,replacethemainboard(JC92–02516A).
b)Ifthemotorisoperational,
•CheckthePinNum8.Ifthevalueisabnormal,replacethemainboard.Ifthevalueisnormal,replace
theharness.
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