LCD Failure, Internal Keyboard Failure | Acer 5742G, 5742ZG specs

LCD Failure

If the LCD fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRU:

Internal Keyboard Failure

If the built-in Keyboard fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRU:

Chapter 4

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Acer 5742G, 5742ZG manual LCD Failure, Internal Keyboard Failure

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 Storage GraphicsOptical Media Drive Webcam Power adapter and battery Wireless and networkingPrivacy control Wlan Warranty Dimensions and weightInput and control Input and output Software UMA System Block Diagram Discrete nVidia Discrete ATI Icon Description Your Acer Notebook tourTop View Rear view Battery bay Houses the computers battery pack Left View Right View Base view HDD IndicatorsIcon Function Description Function Left Button Right Button Main TouchPad Touch Pad Basics Lock key Description Using the KeyboardLock Keys and embedded numeric keypad Key Description Windows Keys Hotkey Icon Function Description Hot Keys CPU Hardware Specifications and Configurations 512MB,1GB,2GB,4GB DDR3 RAM System Memory Specification LAN Interface Specification BiosMemory Combinations Slot Total Memory 0MB Hard Disk Drive Interface Specification Keyboard Specification LED Specification Bluetooth Interface SpecificationAudio Interface Specification LCD Display Supported Resolution Bits Intel LCD Inverter not available with this model SpecificationCamera Specification 3G Module not available with this model Specification Battery Specification Audio Codec and Amplifier SpecificationWireless Module 802.11b/g/n Specification Vram ATI Vram Nvidia Ports Specification System Board Major Chips SpecificationAC Adapter UMA Specification AC Adapter nVidia Specification Card Reader UMA & Discrete Specification AC Adapter ATI SpecificationSystem Power Management Legacy Specification Mode System LED Indicator Specification Chapter Navigating the Bios Utility Bios Setup Utility Information Aspire 5742/5742G/5742Z/5742ZG BiosParameter Description Uuid Parameter Description Format/Option DisabledMain Security Disabled orParameter Description Option Clear or Set 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 Remove HDD Password Remove HDD/BIOS Password UtilitiesPassword UnlockHD Cleaning Bios Passwords Removing Bios Passwords Using Boot Sequence Selector Output Using DMIToolsInput Chapter Disassembly Requirements Machine Disassembly and Replacement Pre-disassembly Instructions Main Screw List Quantity Part Number Disassembly ProcessScrew 2.5D Screw 3.0D Screw List Step Quantity External Module Disassembly ProcessExternal Modules Disassembly Flowchart 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 Main Unit Disassembly Flowchart Main Unit Disassembly ProcessScrew Assy CPU Thermal 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 UMA Removing the Bluetooth BoardDiscrete 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 VGA/RAM PAD Replacing the Thermal ModuleMastro B6 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 Microphone Record Failure Microphone ProblemsSelect Set up microphone USB Failure Right side Select Startup Repair HDD Not Operating CorrectlySelect Repair your computer 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 Dimm Intermittent ProblemsUndetermined Problems Post Codes Post Code Range Phase Peiswitchstack PEI Peimemoryinstall PEIPeienterrecoverymode PEI Peirecoverymediafound PEI Bdsinstallhotkey BDS Dxesmarttimerinit DXEBdsbeforepciioinstall BDS Dxemtcinit DXE Bdsendofbootselection BDS Bdsenumerateallbootoption BDSBdsentersetup BDS Bdsenterbootmanager BDS Functionality Name Include\ PostCode.h Phase Description Smmacpienableend SMM Smmacpienablestart SMMSmmacpidisablestart SMM Smmacpidisableend SMM JUSB2 JTP1SW1/SW2 JMIC2 FFC Discrete nVidiaLED2 SW2/SW3 JSPK2 Discrete ATIJKB1 JP1 Bottom View Connect to Wlan USB connector U34 Description USB ConnectorUSB/B Board PEW71/91 ON/OFF LED Power BoardPEW71/91 Wlan LED PEW71/91 Media LED SW1 PEW51 Media LED SW1 PEW71/91 Media LEDPEW51 Wlan LED PEW51 Media LED LED12 PEW51 Wlan LED SW1 PEW71/91 ON/OFF LED LED10 PEW71/91 Wlan LEDPEW71/81/91 Media LED LED11 JREAD2 CR/B BoardJREAD1 JODD2 ODD connectorODD Board Clearing Password Check Clearing Password Check and Bios RecoverySteps for Clearing Bios Password Check Clear Cmos Jumper R671/R675 Clear Cmos Jumper Bios Recovery Boot Block Bios Recovery by Crisis DiskBios Recovery Hotkey Steps for Bios Recovery from USB Storage 198 Chapter FRU Field Replaceable Unit List Description Acer P/N Aspire Exploded DiagramsMain Assembly Discrete Uniload DOOR-UMA Lower CoverUniload DOOR-DIS 3G DOOR-DIS LCD Assembly LED Assembly Aspire FRU List BatteryCategory Description Adapter Cable CASE/COVER/BRACKET Assembly CPU/PROCESSOR Sata 8MB LF F/W0001SDM1 HDD/HARD Disk DrivePCB Sata 8MB LF F/W0001SDM1 22ZEST0, ML320S, 4K Drive Sata 8MB LF F/W Keyboard LCD BD Combo DriveDVD RW Drive LCD Bezel for W/CMOS LCD Cover IMR-BLACKAntenna WLAN-MAIN Antenna WLAN-AUX 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 Bracket R&L LED Cable for W/CMOSLED LCD Samsung 15.6W Wxga Glare LED LCD BOE 15.6W Wxga Glare HT156WXB 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 ANTENNA*2, W/O CCD, Silver LCD Cover IMR-SILVER LCD Bezel for W/O CmosLCD Cable for W/O Cmos 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 Miscellaneous HeatsinkSpeaker Category Screw ListAcer Description Screw 230 Chapter Model Country Acer Part No Description Appendix aAspire 5742/5742G W7HP64ASDE1 MC W7HP64ASBE1 MCW7HP64ASNL1 MC W7HP64ASLU3 MC W7HP64ASTW1 MC TWN GctwnW7HP64ASDK2 MC W7HP64ASPL1 MC W7HP64EMASME2 MC W7HP64ASIT1 MCW7HP64ASFR1 MC W7HP64ASCH1 MC W7HP64EMASZA2 MCW7HP64EMASTR1 MC W7HP64ASGB1 MC W7HP64KASKR1 MC China LX.R5D01.001 AS5742G-5462G32Mnrr W7HP64ASCZ2 MC Germany LX.R5302.028 AS5742G-5464G64Bnkk Chip Model Country Acer BOM NameCPU LCD VGA LX.R5D NLED15 N11PGLX.R5C AS5742G Turkey LX.R53 AS5742GN11P AS5742G Switzerland LX.R52 5463G50Mnkk 01.008 GE1GBCkk3V3 Vram Model Country AcerMemory HDD 1GB 1G-DDR3 SO2GBI SO2GBII SO2GBI SO1GBIISO2GBI SO2GBII SO2GBI SO4GBII LX.R5C 1G-DDR3 SO2GBI SO2GBII LX.R5D 1G-DDR3 SO2GBI1G-DDR3 SO2GBI SO1GBII LX.R5D 1G-DDR3 SO2GBI SO2GBII 1G-DDR3 SO4GBI SO4GBII 5464G50Mncc 005 LAN1 Wireless Bluetooth AdapterODD 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 Gctwn LX.R5R ARKXT512C Wxgag11PGE1GBC Wxgag Gctwn LX.R5P AS5742ZG Baltic LX.R58 AS5742ZGP AS5742ZG Spain LX.R5R 1G-DDR3 SO2GBI LX.R5P 1G-DDR3 SO2GBISO1GBI Gctwn LX.R5R 1G-DDR3 SO2GBI LX.R5R 1G-DDR3 SO2GBI SO1GBI SO2GBI SO1GBI AS5742ZG Cyprus LX.R58 512M SO2GBI SO4GBI LX.R5Q 1G-DDR3 SO2GBI LX.R5R NSM8XS LX.R5P NSM8XSLX.R5A NSM8XS Gctwn LX.R5R NSM8XS AS5742ZG Poland LX.R5Q NSM8XS 272 Chapter Microsoft Windows 7 Environment Test Appendix BVendor Type Description Adapter Audio Codec HDD Vendor Type DescriptionCamera LAN VGA Chip NB ChipsetSoftware Wireless LAN Vendor Type Description WiFi Antenna 278 Appendix C Online Support Information 280 Index 282