Samsung RF23HT Series Service Manual

98TROUBLESHOOTING4-2-11. When the Panel PCB does not operate normally- There is a MICOM embedded in the Panel PCB. So, take care when doing repairs. And, except the SolderTouch, replace the PCB.Since all Touch is used for the Panel PCB Switch, be sure to turn off the unit and turn it on again afterdoing a repair. [It is to adjust the sensitivity of the Touch Panel.]① When the entire or a certain section of the Panel PCB does not light up② When the Panel PCB buttons do not work※ When it keeps troubling after check with the above procedures[Check after turning off the unit and turning it on again]StartIs the connetorinsertion of freezer upper-hingenomal?① Check the Dispenser and the Top Cover Hinge Connectors.Check the Wire Cut and the Wire Short.② Check the wire connection between the Fridge TopCabinet and the Main PCB Connector.Check the Wire Cut and the Wire Short.① Check the Dispenser and the Top Cover Hinge Connectors.Check the Wire Cut and the Wire Short.② Check the wire connection at the Fridge Top Cabinet.Check the Wire Cut and the Wire Short.③ Check Short/Open at the Panel Communication & the PowerSupply Circuit of the Main PCBYesNoMAIN PCBConnector (CN50) is insertednormally?YesThe PanelPCB Connecter is connectedproperly?YesWhenreplacing Panel-PCB,it lights up?NOButtons get stuckbeing pressed down?NOButtons get stuckbeing pressed down?NOButtons get stuckbeing pressed down?NORefer to the Circuit Diagram ofthis manual or the Wiring Diagramattached at the back of the unit.Insert Connector again Repair the contacttroubleNo Insert MAIN PCB Connector againNo Insert Connector again Repair the contacttroubleYes Replace Panel PCBYes Re-assemble PCB ASS'Y or clear the restrictionYes Re-assemble PCB ASS'Y or clear the restrictionYes Replace Panel PCB