Samsung WF448AAP/XAA - Table of Contents

CONTENTS
1. Safety instructions ......................................................................1
1-1. Safety instructions for service engineers ..................................................1
2. FeaturesandSpecications ...............................................................5
2-1. Features ...........................................................................5
2-2. Specications .......................................................................7
2-3. Comparingspecicationswithexistingmodels .............................................8
2-4. Optionsspecications .................................................................9
3. Disassembly and Reassembly ............................................................11
3-1. Toolsfordisassemblyandreassembly ..................................................11
3-2. Standarddisassemblydrawings ........................................................12
4. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-1. Errormodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-2. Correctiveactionsforeacherrorcode ...................................................27
5. PCB diagram ..........................................................................33
5-1. Main PCB .........................................................................33
5-2. ConnectorandRelayPortPartDetailedManual(MainPCB) .................................34
5-3. SubPCB(WF520ABP/XAA,WF520ABW/XAA) ...........................................35
5-4. ConnectorPortPartDetailedManual-SubPCB(WF520ABP/XAA,WF520ABW/XAA) .............36
5-5. SubPCB(WF511ABR/XAA) ...........................................................37
5-6. ConnectorPortPartDetailedManual-SubPCB(WF511ABR/XAA) ............................38
6. Wiring diagram .........................................................................39
6-1. Wiringdiagram(WF520ABP/XAA,WF520ABW/XAA) ......................................39
6-2. Wiringdiagram(WF511ABR/XAA) ..................................................... 40
7. Schematic diagram .................................................................... 41
7-1. Maincontrol ....................................................................... 41
7-2. Subcontrol(LCD)-WF520ABP/XAA,WF520ABW/XAA ................................... 42
7-3. Subcontrol(LED)-WF511ABR/XAA ................................................... 43
7-4. Subcontrol(Graphic) ............................................................... 44