Key Board, OSD is unstable or not working NG | Acer B243W manual

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Acer B243W manual Key Board, OSD is unstable or not working NG, Y NG Is Key Pad Board normally? Y Check Main Board

Contents

Acer B243W Service Guide Revision History Service Guide Version and RevisionVersion Release Date Conventions CopyrightDisclaimer Trademarks Warning For FCC Certified Models Preface Special Notes On LCD Monitors Precautions Table Of Contents Introduction Monitor FeaturesChart of B243W Chapter Standard Test Conditions Electrical Requirements LCD Monitor General Specification Mechanical Information LCD Panel SpecificationGeneral Specifications Electrical Characteristics Optical Specifications Vertical Support Timing VESA MODESHorizontal Monitor Block Diagram Crystal Main Board Diagram Software Flow Chart Remark Symbol Main Board Layout Installation Attaching/Removing The Base Screen Position AdjustmentHeight Adjustment Monitor Pivot TiltSwivel Front panel controls Operating InstructionsExternal Controls eColor Management OSD How to Adjust a Setting Adjusting the picture Page Using The Right Power Cord LogoHow To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature Disassembly Procedure Machine Disassembly 3. Release the shield inverter and lamp connectors. Fig Page Page 1. No Power TroubleshootingThis chapter provides troubleshooting information for the B243W 2. No Picture LED is orange 3. White screen OSD is unstable or not working NG 4. Key BoardIs Key Pad Board connecting normally? Y NG Is Button Switch normally? Connect Key Board Replace Button Switch Replace Key Board 5. Adapter/Inverter Board No power W/LED No Backlight D-SUB connector Connector InformationThe following figure shows the connector locations on the monitor DVI Connector FRU Field Replaceable Unit List Exploded Diagram Model B243WChapter Picture Part List Adapter Board Inverter Board Main Board USB Board LVDS Cable FOR SCALER POWER Schematic DiagramMain Board POWER INPUT CABLE NOT DVICONNECTMCUCABLE CONNECTION REVC MST9200A-LF 1M X 16bit =512K X 2Bank AUDIOSTDBY HI For HDCPAUDIOMUTE AUDIO CONN CONNECTLVDS INTERFACE CN703 PSON Adapter boardON/OFF T5A 250VAC Improve EMI THE PIN ADDED FERRITE BEAD THE SOLUTION FOR EMI400V In SVT Add it Q810 Inverter boardOVP Over Voltage Protation C829 POWER Key CONNECTORPOWER POWERKey Upstream PowerEEPROM/Config Power Regulator