Remove the USB Board from the lower case | Acer 7520 specification

21.Remove the one screw (C) securing the USB board to the lower case.

Step	Size (Quantity)	Color	Torque
1	M2 x L4 (1)	Silver	1.6 kgf-cm

22.Remove the USB Board from the lower case.

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Chapter 3

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Acer 7520 manual Remove the USB Board from the lower case

Contents

Please refer to http//csd.acer.com.tw Revision History Copyright III Procedures Gives precautionary measures toProblems Following conventions are used in this manual Preface Page Table of Contents Table of Contents TravelMate 7520/7520G/7220/7220G Series Top ViewBottom View Microsoft Windows Vista Environment Test Table of Contents Features Below is a brief summary of the computer’s many featureChapter Models Optical drive options Acer Video Conference featuring Temperature Humidity non-condensing DiagramSystem Block AMD Your Acer Notebook tour Front View Closed Front View Left View DVI-D Right View Rear Panel Indicators Computer has several easy-to-read status indicators ChapterBottom Panel HDD Indicates when the hard disk drive isEasy-Launch Buttons Active Touchpad Basics Chapter Fn + F11 Using the KeyboardLock Keys and embedded numeric keypad F12 Windows Keys Power. Press any key to return Hot KeysTechnology Euro symbol Special Key Acer Empowering Technology Empowering Technology passwordAcer eNet Management Page Acer ePower Management Using power plans To edit a power plan Acer ePresentation Management Acer eDataSecurity Management Passwords Acer eLock Management Acer eRecovery Management Restore and recovery Acer eSettings Management Windows Mobility Center Lets you set an asset tag for your system Using the System Utilities Acer Bio-Protection for selected modelsNTI Shadow Acer GridVista dual-display compatible Launch Manager Norton Internet SecuritySelect Tasks & Scans Page Hardware Specifications and Configurations ProcessorCPU Fan True Value Table System Memory Memory Combinations0MB Bluetooth Interface Wireless Module 802.11b/gHard Disk Drive Interface 2MB SataCombo Drive module Pata DVD+RW Super-Multi Drive moduleUS & US+ RW DVD Audio Interface Pcmcia Port Video InterfaceVideo Memory System Board Major Chips LAN BatteryVGA Modem LCD 17 inch LCD Inverter System Power Management AC Adaptor Bios Setup Utility System Utilities Navigating the Bios Utility Information Parameter Description Main C u r i t y O t I t Parameter Description Format/Option Advanced C E x i t Security C u r i t y O t I t Setting a Password Clear or Set Removing a Password Chapter Boot E o r t o Exit Table below describes the parameters in this screen Bios Flash Utility Remove HDD/BIOS Utility This section provide you with removing HDD/BIOS methodRemove HDD Password Remove Bios Password Key in biospw 14452 Choose one upper-case string Chapter Chapter Machine Disassembly and Replacement Disassembly Requirements General Information Pre-disassembly InstructionsDisassembly Process Main Screw List External Module Disassembly Process External Modules Disassembly FlowchartScrew List Removing the Battery Pack Removing the SD dummy card Removing the PC and ExpressCard dummy cardsPress the eject button to pop out the button Chapter See Removing the Battery Pack on Removing the Lower Cover Removing the Secondary HDD Cover Removing the Secondary HDD Bracket and Connector Loosen the two screws B from the secondary HDD coverPage Removing the Dimm Removing the Wlan Board Modules Removing the Hard Disk Drive Module Detach the Wlan board from the Wlan socket Removing the Optical Drive Module Remove the hard disk drive from the bracket M2.5 x L6 Black Kgf-cm M2 x L3 Black Kgf-cm Chapter Main Unit Disassembly Process Removing the Modem Board Removing the Heatsink Fan Module Removing the CPU and VGA Heatsink Module Remove the heatsink fan module from the main board Removing the CPU Slide out and remove the heatsink module Removing the VGA board for Discrete model only Removing the Middle Cover and the Power Board Carefully remove the VGA board from the main board Removing the Keyboard Chapter Removing the LCD Module M2.5 x L8 Black Kgf-cm Chapter Separating the Upper Case from the Lower Case Carefully remove the LCD module from the base unit Chapter Removing the Launch Board Remove the twenty screws a on the bottom and top panel Removing theTouch Pad Board Module Page Remove the fingerprint board from the upper case Removing the Main Board Carefully pry loose and remove the touch pad board M2 x L4 Silver Kgf-cm Chapter Removing the ODD Board Module Carefully remove the main board from the bottom panel Removing the Speaker Modules Removing the USB Board Remove the left and right speakers from the upper case Remove the USB Board from the lower case LCD Module Disassembly Process Removing the LCD Bezel Removing the LCD module with the Brackets Removing the Inverter Board and FPC Cable Detach the LCD with the brackets from the back cover Removing the LCD Brackets Removing the Left and Right Hinge Removing the AntennasRemove the left and right hinge from the back cover Removing the Internal Microphone and Web Camera 102 Chapter Troubleshooting Symptoms Verified Go To External CD-ROM Drive Check System Check ProceduresExternal Diskette Drive Check Keyboard or Auxiliary Input Device Check Power System Check Memory check Check the Power Adapter Touchpad Check Chapter 107 Power-On Self-Test Post Error Message Error Message List Error Messages FRU/Action in Sequence Index of Error MessagesError Code List Error Codes Error Messages Bios ROM Dimm Bios ROM Cmos DimmCPU ID LCD Post Phoenix Bios Beep Codes Code Beeps Post Routine Description Setup 114 Chapter Code Beeps 116 Chapter Index of Symptom-to-FRU Error Message LCD-Related Symptoms Symptom / Error Action in SequencePower-Related Symptoms Symptom / Error Action in Sequence Speaker-Related Symptoms Symptom / Error Action in Sequence PCMCIA-Related Symptoms Symptom / Error Action in SequenceMemory-Related Symptoms Symptom / Error Action in Sequence PcmciaPage Modem-Related Symptoms Symptom / Error Action in Sequence Intermittent Problems Undetermined Problems Dimm Jumper and Connector Locations Top View USB Connector Bottom ViewCPU Password Bypassing and Bios Recovery PIN pad Location Xxxxxxx XxxxxxxPage 128 Chapter FRU Field Replaceable Unit List TravelMate 7520/7520G/7220/7220G Exploded Diagram TravelMate 7520/7520G/7220/7220G FRU List Battery Pack LI+ 6CELL 2.0MAH Finger Print Board Cable Power Cord 10A 125V US Upper Case W/ Cover Switch PGA CPU Merom T5600 1.83GHZ Intel HDD 80GB 5400RPM Sata Black Korean BIG Ergo Darfon Keyboard 1415KB-EV2 93KS Glare Name Plate TM5310 Appendix a TravelMate 7520/7520G/7220/7220G SeriesAppendix a 140 Appendix a Appendix a 142 143 Appendix a 144 145 Appendix a 146 147 Appendix a 148 149 Appendix a 150 151 Appendix a 152 153 Appendix a 154 155 Appendix a 156 157 Appendix a 158 159 Appendix a 160 161 Appendix a 162 Test Compatible Components Appendix B Microsoft Windows Vista Environment Test CRT Port Test Appendix B 165 IR Test Memory Card Test SD/MS/MMC/SM/CF/Microdrive/XD Online Support Information Appendix C 168 Appendix C Index Index 169 Screw List 60, 61, 73 Index