Samsung 943NWX service manual Troubleshooting

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4. Troubleshooting

4. Troubleshooting

4-1. Troubleshooting

1.Set custom mode as follows before beginning a repair.

•Resolution: 1440 x 900

•V-frequency: 60 Hz

2.If the screen is blank, check whether the power cord is connected correctly.

3.The circuits to check:

•When the raster does not appear: The Function PCB, Main PCB, I/P PBA

•When 5V is generated but a blank screen is displayed: Main PCB

•When 5V is not generated: I/P PBA

4.“Press the MENU button and hold down the, “ (Enter, Source)” button for more than five (5) seconds to return the monitor to factory mode.

4-1

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Contents LCD-Monitor Contents CIS Simple Stand Disassembly Disassembly and AssemblyDescription Photo Description Photo Has Stand Disassembly Simple Stand Exploded View LS19MYNKFZ/XBM Exploded View & Part List1. LS19MYNKFZ/XBM Parts List 943NWX Service Bom SA Service AVAILABLE, SNA Service not Available LS19MYNKFZ/XBM Parts ListPCB IC-EEPROMS-24CS08AFJ-TB Exploded View & Part List Clamper CORE-WIREALL MODEL,NYLON COVER-STAND FRONTLS19MYW,HIPS HB,BK26,S Safety Precautions PrecautionsProduct Safety Notices Servicing the LCD MonitorGeneral Servicing Precautions Servicing PrecautionsStatic Electricity Precautions Installation Precautions Memo Feature & Specifications Product specificationsMagic Color Color Effect Magic Bright3 Magic Tune Premium Spec Comparison to the Old ModelsAccessories Sold separately AccessoriesMemo Circuit Descriptions Schematic DiagramSE717M-LF Schematic Diagrams Scaler PartSchematic Diagrams Power Flowchart Schematic Diagrams IP Board  Inverter Part Schematic Diagrams Main PBA Troubleshooting TroubleshootingWhen the Power Does Not Turn On Circuit diagrams when the power does not turn on When the screen is blank Analog When a blank screen is displayed Analog Waveforms when no screen is displayed Analog Error Examples and Actions Service Adjustment Conditions Adjustment Checking the Code Version Service Function Specifications When replacing the panel  Inputting the DDC Data  Inputting the MCU Data Page Memo Wiring Diagram Main Board Wiring DiagramSE717M-LF Wiring Diagram IP BoardCables Connector FunctionsMemo