Acer 7740G manual

12.Disconnect the left speaker cable from SPKR_L1 on the main board.

13. Release the latch and disconnect the touchpad cable TPCN1 connector on the main board.

Chapter 3

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Acer 7740G manual

Contents

Aspire 7740 and 7740G Series Service Guide Revision History Copyright Problems Gives precautionary measures toProcedures Following conventions are used in this manual Preface Page Table of Contents FRU Field Replaceable Unit List 113 Below is a brief summary of the computer’s many features FeaturesChapter Aspect ratio 17.3 HD+ 1600 x Integrated Acer Crystal Eye webcam 1024*768 800*600103-/104-/107-key keyboard Touchpad pointing device Environment System Block Diagram Top View Your Acer Notebook tour Hotkeys Closed Front View Rear View Right View Computer has several easy-to-read status indicators IndicatorsIndicates when the hard disk drive is active Easy-Launch Buttons F12 Using the KeyboardLock Keys and numeric keypad Open a text editor or word processor Chapter Windows KeysSpecial Key only for certain models Windows Mobility Center Acer GridVista dual-display compatible Using the System Utilities Chapter Processor Hardware Specifications and ConfigurationsCPU Fan True Value Table System Memory Wireless Module 802.11b/g/n Bluetooth InterfaceMemory Combinations LAN Module Vendor & model name Hard Disk DriveOptical Disc Drive Blu-Ray Disc Drive US & US+ RW DVD Audio Interface DVD-RW Non Cprm & Cprm DVD+/-R Dual Blu-RayAudio Controller Realtek ALC669X Yes/2.1 2W speakers Video Memory BatterySystem Board Major Chips Keyboard Input 100-240V~ 1.5A, 50-60Hz Output 19V, 65W/90W, 2-pin System Power ManagementAC Adaptor Chapter System Utilities Bios Setup Utility Navigating the Bios Utility Parameter Description Information Parameter Description Format/Option Main Clear or Set Security Setting a Password Page Boot Exit Bios Flash Utility Remove HDD Password Remove HDD PasswordThis section teaches you how to remove HDD password Chapter Disassembly Requirements Machine Disassembly and Replacement Disassembly Process Pre-disassembly InstructionsGeneral Information Main Screw List External Modules Disassembly Flowchart External Module Disassembly Process Removing the Battery Pack Removing the Optical Drive Module Removing the Back Cover Pry loose and carefully lift and remove the back cover Removing the Hard Disk Drive Module Removing the Wireless LAN Card M2 x L4 Silver Kgf-cm 86.9A552.4R0 Removing the Dimm Module Remove the wireless LAN card Remove the Dimm modules Chapter Main Unit Disassembly Process Removing the Heatsink Module Chapter Removing the CPU Chapter Removing the Keyboard Removing the Middle Cover Chapter Removing the LCD Module Chapter Remove the four screws B from the left and right hinges Carefully remove the LCD module from the base unit Separating the Upper Case from the Lower CasePage Size Quantity Color Torque Gently lift and detach the upper case from the lower case Removing the Touchpad and Button Boards Chapter Page Size Quantity Color Torque Page Detach the touchpad board from the upper case Removing the Left Speaker Remove the left speaker from the upper board Removing the USB Board Module M2.5 x L4 Black Kgf-cm 86.00H59.734 Chapter Remove the USB board module from the lower case Chapter Removing the Modem Board Removing the Bluetooth Module Removing the Microphone Page Remove the microphone from the system Removing the Main BoardPage Remove the one screw G securing the main board in place Removing the Right Speaker Remove the right speaker from the lower case LCD Module Disassembly Process Removing the LCD Bezel Removing the LCD panel with the Brackets Detach the webcam cable from the webcam module Page Removing the LCD Brackets Removing the FPC Cable Removing the Web Camera Page Removing the Antennas Power-On Self-Test Post Error Symptoms Verified Go To External Diskette Drive Check System Check ProceduresExternal Optical Disk Drive Check Keyboard or Auxiliary Input Device Check Memory Check Power System Check Touchpad Check Power-On Self-Test Post Error Message Error Code List Error Codes Error Messages Index of Error Messages System board System RAM Failed at offset nnnn Error Message List Error Messages FRU/Action in SequenceSystem board Extended RAM Failed at offset nnnn System board DMA Test Failed Fixed Disk n None Invalid System Configuration Data Fail-Safe Timer NMI Failed Blinking cursor shown on LCD during System board Code Beeps Post Routine Description Phoenix Bios Beep Codes Setup Code Beeps Post Routine Description 100 Chapter Power-Related Symptoms Symptom / Error Action in Sequence Index of Symptom-to-FRU Error MessageLCD-Related Symptoms Symptom / Error Action in Sequence Memory-Related Symptoms Symptom / Error Action in Sequence PCMCIA-Related Symptoms Symptom / Error Action in SequenceSpeaker-Related Symptoms Symptom / Error Action in Sequence Symptom / Error Action in SequencePage Modem-Related Symptoms Symptom / Error Action in Sequence Intermittent ProblemsUndetermined Problems Chapter 105 Code ConnectorMain Board DC-in cable connector Heatsink fan cable connectorOptical disk drive connector HDD1 connector Gap name in Aspire 7740/7740G Series is G29 Clearing Password Check and Bios Recovery Bios Recovery by Crisis Disk Page 110 Chapter Page 112 Chapter FRU Field Replaceable Unit List Exploded Diagram Aceraspire 7740 UMACBKJV70CP no LX.PLY02.025/44 Aspire 7740/7740G Series FRU List Cables CASE/COVER/BRACKET Combo Module Heatsink Keyboard Standard Black Texture Russian Mainboard Speaker 124 Chapter Appendix a 125 Appendix a Appendix a 126 Aspire 7740/7740G Series NBDCB4XS Appendix a 127 128 Appendix a Appendix a 129 130 Appendix a Appendix a 131 132 Appendix a Appendix a 133 134 Appendix a Appendix a 135 136 Appendix a Appendix a 137 138 Appendix a Appendix a 139 140 Appendix a Appendix a 141 142 Appendix a 143 Appendix a Appendix a 144 145 Appendix a Appendix a 146 Appendix B Test Compatible Components Hardware Device Tests Access Point Appendix B 149 Device name Vendor Wireless Printer 150 Appendix C Online Support Information 152 Index LCD bezel removing 80 LCD Brackets removing