Replacing the Mainboard | Acer 5742ZG, 5742G guide

Replacing the Mainboard

1.Connect the Bluetooth cable connector to the mainboard connector.

2.Adhere the adhesive tape covering the Bluetooth cable to the mainboard connector.

3.Place a protective cover on the LCD panel and the mainboard on the protective surface.

Chapter 3

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Acer 5742ZG, 5742G manual Replacing the Mainboard

Contents

Aspire 5742/5742G/5742Z/5742ZG Series Service Guide Revision History III Copyright Conventions Preface Page Table of Contents Viii Aspire 5742Z/5742ZG Aspire 5742/5742G Table of Contents Chapter Features Webcam GraphicsStorage Optical Media Drive Wlan Wireless and networkingPower adapter and battery Privacy control Input and output Dimensions and weightWarranty Input and control Software UMA System Block Diagram Discrete nVidia Discrete ATI Top View Your Acer Notebook tourIcon Description Rear view Battery bay Houses the computers battery pack Left View Right View Base view Icon Function Description IndicatorsHDD Function Left Button Right Button Main TouchPad Touch Pad Basics Lock Keys and embedded numeric keypad Using the KeyboardLock key Description Key Description Windows Keys Hotkey Icon Function Description Hot Keys CPU Hardware Specifications and Configurations 512MB,1GB,2GB,4GB DDR3 RAM System Memory Specification 0MB BiosLAN Interface Specification Memory Combinations Slot Total Memory Hard Disk Drive Interface Specification Keyboard Specification Audio Interface Specification Bluetooth Interface SpecificationLED Specification 3G Module not available with this model Specification LCD Inverter not available with this model SpecificationLCD Display Supported Resolution Bits Intel Camera Specification Wireless Module 802.11b/g/n Specification Audio Codec and Amplifier SpecificationBattery Specification Vram ATI Vram Nvidia AC Adapter nVidia Specification System Board Major Chips SpecificationPorts Specification AC Adapter UMA Specification System Power Management Legacy Specification Mode AC Adapter ATI SpecificationCard Reader UMA & Discrete Specification System LED Indicator Specification Chapter Navigating the Bios Utility Bios Setup Utility Uuid Aspire 5742/5742G/5742Z/5742ZG BiosInformation Parameter Description Main DisabledParameter Description Format/Option Clear or Set Disabled orSecurity Parameter Description Option Removing a Password Setting a Password Continue Changing a Password IDE1 HL-DT-STDVDRAM GT32N Boot Exit Exit Saving Changes Exit Bios Flash Utilities Stdvdram GT32N DOS Flash Utility WinFlash Utility UnlockHD Remove HDD/BIOS Password UtilitiesRemove HDD Password Password Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Input Using DMIToolsOutput Chapter Disassembly Requirements Machine Disassembly and Replacement Pre-disassembly Instructions Screw 3.0D Disassembly ProcessMain Screw List Quantity Part Number Screw 2.5D External Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Step Quantity Removing the Battery Pack Removing the SD Dummy Card Step Size Quantity Screw Type ODD Module M2.5*8 Removing the ODD Module Step Size Quantity Screw Type ODD Bracket M2*3 Step Size Quantity Screw Type Logic lower door M2.5*8 Removing the Logic Lower Door Step Size Quantity Screw Type 3G Cover M2.5*8 Removing the 3G Cover Discrete Only Removing the RTC Battery UMA Only Remove the RTC battery from the lower cover as shown Removing the Dimm Module Step Size Quantity Screw Type Wlan Module M2*3 Removing the Wlan Module Detach the Wlan module from the Wlan socket Chapter Removing the HDD module Module Step Size Quantity Screw Type HDD Carrier M3*3 Removing the Keyboard Page CPU Thermal Main Unit Disassembly ProcessMain Unit Disassembly Flowchart Screw Assy Step Size Quantity Screw Type Removing the Upper Cover Chapter Page Step Size Quantity Screw Type Upper Cover M2.5*5 Page Removing the Speaker Module Lift the speaker module clear of the device Chapter Removing the Power Board Step Size Quantity Screw Type Power board M2*3 Removing the Touch Pad FFC Page Removing the Card Reader Module Discrete Only Step Size Quantity Screw Type Card Reader M2*3 Removing the USB Board USB Discrete Removing the Bluetooth BoardUMA Disconnect the Bluetooth cable from the connector as shown Removing the ODD Connector Board UMA Only Removing the Mainboard Step Size Quantity Screw Type Mainboard M2.5*5 Page Chapter Removing the Thermal Module Thermal Screw Assy CPU Removing the CPU See Removing the Mainboard on Removing the LCD ModulePage UMA Step Size Quantity Screw Type LCD Module M2.5*5 Removing the DC-In Assembly LCD Module Disassembly Flowchart LCD Module Disassembly Process Step Size Quantity Screw Type LCD Bezel M2.5*6 Removing the LCD Bezel Remove the bezel from the LCD module Chapter Removing the CCD Module Step Size Quantity Screw Type Inverter Module M2.5*5 Removing the Inverter Module LCD Only 102 Chapter Page Step Size Quantity Screw Type LCD Brackets M2.5*5 Removing the LCD/LED PanelPage Step Size Quantity Screw Type LCD Brackets M2*3 Removing the LCD Brackets LCD LED Removing the Lvds Cable Removing the Microphone Cable Lift the microphone set clear of the panel Chapter 109 Removing the Antennas Replacing the Antennas LCD Module Reassembly Procedure Replacing the Microphone Cable Page Replacing the Lvds Cable Replacing the LCD Brackets Replacing the LCD/LED Panel Replacing the Inverter Board 118 Chapter Replacing the CCD Module Replacing the LCD Bezel Replacing the DC-In Assembly Main Module Assembly Procedure Replacing the LCD Module Place the black antenna cable into the cable guides 124 Chapter Replacing the CPU 126 Chapter Mastro B6 Replacing the Thermal ModuleVGA/RAM PAD Callouts Thermal Module M2.5*5 VGA green Replacing the Mainboard 130 Chapter Step Size Quantity Screw Type Mainboard M2.5*5 Connect the Lvds cable to the mainboard Replacing the ODD Connector Board UMA Only Replacing the Bluetooth Board Step Size Quantity Screw Type USB Board M2*3 Replacing the USB Board 136 Chapter Replacing the Card Reader Board Discrete Only 138 Chapter Replacing the Touchpad FFC Replacing the Power Board Replacing the Speaker Module Replacing the Upper Cover Page 144 Chapter Step Size Quantity Screw Type Upper Cover M2.5*5 Replacing the RTC Battery UMA Only Replacing the HDD Module 148 Chapter Replacing the Wlan Module Connect the two 2 antenna cables to the module Replacing the Dimm Modules Replacing the 3G Cover Discrete Only Replacing the Lower Logic Door Replacing the ODD Module Chapter 155 Replacing the Keyboard Replacing the SD Dummy Card Replacing the Battery Symptoms Verified Go To Common Problems Computer Shutsdown Intermittently Power On Issue No Post or Video No Display Issue Abnormal Video Display Random Loss of Bios Settings Internal Keyboard Failure LCD Failure Internal Speaker Failure Touch Pad Failure Sound Problems Select Set up microphone Microphone ProblemsMicrophone Record Failure USB Failure Right side Select Repair your computer HDD Not Operating CorrectlySelect Startup Repair ODD Not Operating Correctly ODD Failure Discs Do Not Play Drive Not Detected Bluetooth Function Test Failure Wireless Function Failure Thermal Unit Failure 1 card Function Test Failure Cosmetic Failure External Mouse Failure Other Failures Undetermined Problems Intermittent ProblemsDimm Post Codes Post Code Range Phase Peirecoverymediafound PEI Peimemoryinstall PEIPeiswitchstack PEI Peienterrecoverymode PEI Dxemtcinit DXE Dxesmarttimerinit DXEBdsinstallhotkey BDS Bdsbeforepciioinstall BDS Bdsenterbootmanager BDS Bdsenumerateallbootoption BDSBdsendofbootselection BDS Bdsentersetup BDS Functionality Name Include\ PostCode.h Phase Description Smmacpidisableend SMM Smmacpienablestart SMMSmmacpienableend SMM Smmacpidisablestart SMM JMIC2 JTP1JUSB2 SW1/SW2 SW2/SW3 Discrete nVidiaFFC LED2 JP1 Discrete ATIJSPK2 JKB1 Bottom View Connect to Wlan USB connector U34 USB/B Board USB ConnectorDescription PEW71/91 Media LED SW1 Power BoardPEW71/91 ON/OFF LED PEW71/91 Wlan LED PEW51 Wlan LED PEW71/91 Media LEDPEW51 Media LED SW1 PEW71/81/91 Media LED LED11 PEW71/91 ON/OFF LED LED10 PEW71/91 Wlan LEDPEW51 Media LED LED12 PEW51 Wlan LED SW1 JREAD1 CR/B BoardJREAD2 ODD Board ODD connectorJODD2 Clear Cmos Jumper Clearing Password Check and Bios RecoveryClearing Password Check Steps for Clearing Bios Password Check R671/R675 Clear Cmos Jumper Steps for Bios Recovery from USB Storage Bios Recovery by Crisis DiskBios Recovery Boot Block Bios Recovery Hotkey 198 Chapter FRU Field Replaceable Unit List Main Assembly Aspire Exploded DiagramsDescription Acer P/N Discrete 3G DOOR-DIS Lower CoverUniload DOOR-UMA Uniload DOOR-DIS LCD Assembly LED Assembly Adapter BatteryAspire FRU List Category Description Cable CASE/COVER/BRACKET Assembly CPU/PROCESSOR 22ZEST0, ML320S, 4K Drive Sata 8MB LF F/W HDD/HARD Disk DriveSata 8MB LF F/W0001SDM1 PCB Sata 8MB LF F/W0001SDM1 Keyboard DVD RW Drive BD Combo DriveLCD Antenna WLAN-AUX LCD Cover IMR-BLACKLCD Bezel for W/CMOS Antenna WLAN-MAIN ANTENNA*2, CCD 1.3M, Brown LCD Cover IMR-BROWN ANTENNA*2, CCD 1.3M, RED LCD Cover IMR-RED ANTENNA*2, CCD 1.3M, Black LED Cover IMR-BLACK Assy LED Module 15.6W Wxga Glare W LED LCD BOE 15.6W Wxga Glare HT156WXB LED Cable for W/CMOSLED Bracket R&L LED LCD Samsung 15.6W Wxga Glare ANTENNA*2, CCD 1.3M, Brown LED Cover IMR-BROWN ANTENNA*2, CCD 1.3M, RED LED Cover IMR-RED ANTENNA*2, W/O CCD, Black LCD Cover IMR-BLACK LCD Cable for W/O Cmos LCD Bezel for W/O CmosANTENNA*2, W/O CCD, Silver LCD Cover IMR-SILVER ANTENNA*2, W/O CCD, Brown LCD Cover IMR-BROWN ANTENNA*2, W/O CCD, RED LCD Cover IMR-RED LED Cable for W/O Cmos ANTENNA*2, W/O CCD, Black LED Cover IMR-BLACK ANTENNA*2, W/O CCD, Silver LED Cover IMR-SILVER ANTENNA*2, W/O CCD, Brown LED Cover IMR-BROWN ANTENNA*2, W/O CCD, RED LED Cover IMR-RED Memory Mainboard Speaker HeatsinkMiscellaneous Screw Screw ListCategory Acer Description 230 Chapter Aspire 5742/5742G Appendix aModel Country Acer Part No Description W7HP64ASLU3 MC W7HP64ASBE1 MCW7HP64ASDE1 MC W7HP64ASNL1 MC W7HP64ASPL1 MC TWN GctwnW7HP64ASTW1 MC W7HP64ASDK2 MC W7HP64ASFR1 MC W7HP64ASIT1 MCW7HP64EMASME2 MC W7HP64ASGB1 MC W7HP64EMASZA2 MCW7HP64ASCH1 MC W7HP64EMASTR1 MC W7HP64KASKR1 MC China LX.R5D01.001 AS5742G-5462G32Mnrr W7HP64ASCZ2 MC Germany LX.R5302.028 AS5742G-5464G64Bnkk CPU LCD VGA Model Country Acer BOM NameChip LX.R5C NLED15 N11PGLX.R5D AS5742G Turkey LX.R53 AS5742GN11P AS5742G Switzerland LX.R52 5463G50Mnkk 01.008 GE1GBCkk3V3 HDD 1GB Model Country AcerVram Memory SO2GBI SO4GBII SO2GBI SO1GBII1G-DDR3 SO2GBI SO2GBII SO2GBI SO2GBII 1G-DDR3 SO2GBI SO1GBII LX.R5D 1G-DDR3 SO2GBILX.R5C 1G-DDR3 SO2GBI SO2GBII LX.R5D 1G-DDR3 SO2GBI SO2GBII 1G-DDR3 SO4GBI SO4GBII 5464G50Mncc 005 ODD Wireless Bluetooth AdapterLAN1 LX.R5D NSM8XS LX.R5C NSM8XS AS5742G Turkey LX.R53 3rd WiFi 90W 374G50Mnkk 02.015 2x2 BGN AS5742G LX.R52 NBDCB4X 3rd WiFi 65W 5464G64Mnkk 02.009 2x2 BGN AS5742G Italy LX.R53 Model Country Acer Description Aspire 5742Z/5742ZG W7HB64EMASME2 MC Middle LX.R58 AS5742ZG-P614G32Mnkk EM East 01.001 LX.R5Q 11PGE1GBC Wxgag ARKXT512C WxgagGctwn LX.R5R Gctwn LX.R5P AS5742ZG Baltic LX.R58 AS5742ZGP AS5742ZG Spain Gctwn LX.R5R 1G-DDR3 SO2GBI LX.R5P 1G-DDR3 SO2GBILX.R5R 1G-DDR3 SO2GBI SO1GBI LX.R5R 1G-DDR3 SO2GBI SO1GBI SO2GBI SO1GBI AS5742ZG Cyprus LX.R58 512M SO2GBI SO4GBI LX.R5Q 1G-DDR3 SO2GBI Gctwn LX.R5R NSM8XS LX.R5P NSM8XSLX.R5R NSM8XS LX.R5A NSM8XS AS5742ZG Poland LX.R5Q NSM8XS 272 Chapter Audio Codec Appendix BMicrosoft Windows 7 Environment Test Vendor Type Description Adapter Camera Vendor Type DescriptionHDD LAN Software NB ChipsetVGA Chip Wireless LAN Vendor Type Description WiFi Antenna 278 Appendix C Online Support Information 280 Index 282