Acer B243W manual Main Board Diagram, Crystal

Page 15
Main Board Diagram

Main Board Diagram

Crystal

24MHZ/30PF/49US

(X402)

MCU

MTV416GMV

(U407)

EPR_SDA

LCD Interface

(CN703)

Scalar IC MST9200HA-LF-165

(Include ADC, OSD)

(U403)

Crystal 14.318MHz

(X401)

EPR_SCL

 

 

 

 

 

EEPROM

 

 

Key Board

M24C16

 

 

Control

(U408)

 

 

(CN405)

 

 

 

 

 

 

 

 

Digital

Video

Signal

DVI

Connector

(CN401)

EEPROM

M24C02

(U401)

Hsync V sync

RGB

D-Sub

 

FRAME

Connector

 

MEMORY

(CN402)

 

(U404)

 

 

 

DB15_SDA,

DB15_SCL

EEPROM

M24C02

(U402)

15

Image 15
Contents Acer B243W Service Guide Revision History Service Guide Version and RevisionVersion Release DateConventions CopyrightDisclaimer TrademarksWarning For FCC Certified Models PrefaceSpecial Notes On LCD Monitors PrecautionsTable Of Contents Introduction Monitor FeaturesChart of B243W ChapterStandard Test Conditions Electrical RequirementsLCD Monitor General Specification LCD Panel Specification General SpecificationsMechanical Information Electrical Characteristics Optical Specifications Support Timing VESA MODES HorizontalVertical Monitor Block Diagram Crystal Main Board DiagramSoftware Flow Chart Remark Symbol Main Board LayoutInstallation Screen Position Adjustment Height AdjustmentAttaching/Removing The Base Tilt SwivelMonitor Pivot Operating Instructions External ControlsFront panel controls eColor Management OSD How to Adjust a Setting Adjusting the picture Page Logo How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B FeatureUsing The Right Power Cord Disassembly Procedure Machine Disassembly3. Release the shield inverter and lamp connectors. Fig Page Page Troubleshooting This chapter provides troubleshooting information for the B243W1. No Power 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 Board5. Adapter/Inverter Board No power W/LED No Backlight Connector Information The following figure shows the connector locations on the monitorD-SUB connector DVI Connector Exploded Diagram Model B243W ChapterFRU Field Replaceable Unit List Picture Part ListAdapter Board Inverter Board Main Board USB Board LVDS Cable FOR SCALER POWER Schematic DiagramMain Board POWER INPUTCABLE NOT DVICONNECTMCUCABLE CONNECTIONREVC MST9200A-LF1M X 16bit =512K X 2Bank AUDIOSTDBY HI For HDCPAUDIOMUTE AUDIOCONN CONNECTLVDS INTERFACE CN703PSON Adapter boardON/OFF T5A 250VACImprove EMI THE PIN ADDED FERRITE BEAD THE SOLUTION FOR EMI400V In SVT Add itInverter board OVP Over Voltage ProtationQ810 C829 POWER Key CONNECTORPOWER POWERKeyUpstream PowerEEPROM/Config Power Regulator