Acer 7520 manual

Page 127

Power Management-Related Symptoms

Symptom / Error	Action in Sequence

The system doesn't resume from	See “Save to Disk (S4)” on page 39.
hibernation mode.	Hard disk connection board
	Hard disk drive
	System board

The system doesn't resume from standby	See “Save to Disk (S4)” on page 39.
mode after opening the LCD.	LCD cover switch
	System board

Battery fuel gauge in Windows doesn’t go	Remove battery pack and let it cool for 2 hours.
higher than 90%.	Refresh battery (continue use battery until power off, then
	charge battery).
	Battery pack
	System board

System hangs intermittently.	Reconnect hard disk/CD-ROM drives.
	Hard disk connection board
	System board

Peripheral-Related Symptoms

Symptom / Error	Action in Sequence

System configuration does not match the	Enter BIOS Setup Utility to execute “Load Default Settings”,
installed devices.	then reboot system.
	Reconnect hard disk/CD-ROM/diskette drives.

External display does not work correctly.	Press Fn+F5, LCD/CRT/Both display switching
	System board

USB does not work correctly	System board

Print problems.	Ensure the “Parallel Port” in the “Onboard Devices
	Configuration” of BIOS Setup Utility is set to Enabled.
	Onboard Devices Configuration
	Run printer self-test.
	Printer driver
	Printer cable
	Printer
	System Board

Serial or parallel port device problems.	Ensure the “Serial Port” in the Devices Configuration” of
	BIOS Setup Utility is set to Enabled.
	Device driver
	Device cable
	Device
	System board

Keyboard/Touchpad-Related Symptoms

Symptom / Error	Action in Sequence

Keyboard (one or more keys) does not	Reconnect the keyboard cable.
work.	Keyboard
	System board

Chapter 4

119

Image 127

Contents Please refer to http//csd.acer.com.tw Revision History III CopyrightFollowing conventions are used in this manual Gives precautionary measures toProblems ProceduresPreface Page Table of Contents Table of Contents Microsoft Windows Vista Environment Test Top ViewBottom View TravelMate 7520/7520G/7220/7220G SeriesTable of Contents Below is a brief summary of the computer’s many feature FeaturesChapter Acer Video Conference featuring Models Optical drive options Humidity non-condensing TemperatureAMD DiagramSystem BlockFront View Your Acer Notebook tourClosed Front View DVI-D Left ViewRear Panel Right ViewComputer has several easy-to-read status indicators Chapter IndicatorsBottom Panel Active Indicates when the hard disk drive isEasy-Launch Buttons HDDTouchpad Basics Chapter F12 Using the KeyboardLock Keys and embedded numeric keypad Fn + F11Windows Keys Hot Keys Power. Press any key to returnTechnology Special Key Euro symbolEmpowering Technology password Acer Empowering TechnologyAcer eNet Management Page Using power plans Acer ePower ManagementAcer ePresentation Management To edit a power planAcer eDataSecurity Management Acer eLock Management Passwords Restore and recovery Acer eRecovery ManagementAcer eSettings Management Lets you set an asset tag for your system Windows Mobility CenterAcer Bio-Protection for selected models Using the System UtilitiesNTI Shadow Acer GridVista dual-display compatible Norton Internet Security Launch ManagerSelect Tasks & Scans Page Processor Hardware Specifications and ConfigurationsCPU Fan True Value Table Memory Combinations System Memory0MB Wireless Module 802.11b/g Bluetooth InterfaceHard Disk Drive Interface Pata SataCombo Drive module 2MBAudio Interface Super-Multi Drive moduleUS & US+ RW DVD DVD+RWSystem Board Major Chips Video InterfaceVideo Memory Pcmcia PortModem BatteryVGA LANLCD Inverter LCD 17 inchAC Adaptor System Power ManagementSystem Utilities Bios Setup UtilityNavigating the Bios Utility Parameter Description InformationC u r i t y O t I t MainParameter Description Format/Option C E x i t AdvancedC u r i t y O t I t SecurityClear or Set Setting a PasswordRemoving a Password Chapter E o r t o BootTable below describes the parameters in this screen ExitBios Flash Utility This section provide you with removing HDD/BIOS method Remove HDD/BIOS UtilityRemove HDD Password Remove Bios Password Key in biospw 14452 Choose one upper-case string Chapter Chapter Disassembly Requirements Machine Disassembly and ReplacementMain Screw List Pre-disassembly InstructionsDisassembly Process General InformationExternal Modules Disassembly Flowchart External Module Disassembly ProcessScrew List Removing the Battery Pack Removing the PC and ExpressCard dummy cards Removing the SD dummy cardPress the eject button to pop out the button Chapter Removing the Lower Cover See Removing the Battery Pack onRemoving the Secondary HDD Cover Loosen the two screws B from the secondary HDD cover Removing the Secondary HDD Bracket and ConnectorPage Removing the Wlan Board Modules Removing the DimmDetach the Wlan board from the Wlan socket Removing the Hard Disk Drive ModuleRemove the hard disk drive from the bracket Removing the Optical Drive ModuleM2.5 x L6 Black Kgf-cm M2 x L3 Black Kgf-cm Chapter Removing the Modem Board Main Unit Disassembly ProcessRemoving the Heatsink Fan Module Remove the heatsink fan module from the main board Removing the CPU and VGA Heatsink ModuleSlide out and remove the heatsink module Removing the CPURemoving the VGA board for Discrete model only Carefully remove the VGA board from the main board Removing the Middle Cover and the Power BoardRemoving the Keyboard Chapter Removing the LCD Module M2.5 x L8 Black Kgf-cm Chapter Carefully remove the LCD module from the base unit Separating the Upper Case from the Lower CaseChapter Remove the twenty screws a on the bottom and top panel Removing the Launch BoardRemoving theTouch Pad Board Module Page Remove the fingerprint board from the upper case Carefully pry loose and remove the touch pad board Removing the Main BoardM2 x L4 Silver Kgf-cm Chapter Carefully remove the main board from the bottom panel Removing the ODD Board ModuleRemoving the Speaker Modules Remove the left and right speakers from the upper case Removing the USB BoardRemove the USB Board from the lower case LCD Module Disassembly Process Removing the LCD Bezel Removing the LCD module with the Brackets Detach the LCD with the brackets from the back cover Removing the Inverter Board and FPC CableRemoving the LCD Brackets Removing the Antennas Removing the Left and Right HingeRemove the left and right hinge from the back cover Removing the Internal Microphone and Web Camera 102 Chapter Symptoms Verified Go To TroubleshootingKeyboard or Auxiliary Input Device Check System Check ProceduresExternal Diskette Drive Check External CD-ROM Drive CheckMemory check Power System CheckCheck the Power Adapter Chapter 107 Touchpad CheckPower-On Self-Test Post Error Message Bios ROM Index of Error MessagesError Code List Error Codes Error Messages Error Message List Error Messages FRU/Action in SequenceCmos Dimm Dimm Bios ROMCPU ID Post LCDCode Beeps Post Routine Description Phoenix Bios Beep CodesSetup 114 Chapter Code Beeps 116 Chapter LCD-Related Symptoms Symptom / Error Action in Sequence Index of Symptom-to-FRU Error MessagePower-Related Symptoms Symptom / Error Action in Sequence Pcmcia PCMCIA-Related Symptoms Symptom / Error Action in SequenceMemory-Related Symptoms Symptom / Error Action in Sequence Speaker-Related Symptoms Symptom / Error Action in SequencePage Modem-Related Symptoms Symptom / Error Action in Sequence Intermittent Problems Dimm Undetermined ProblemsTop View Jumper and Connector LocationsBottom View USB ConnectorCPU Password Bypassing and Bios Recovery Xxxxxxx Xxxxxxx PIN pad LocationPage 128 Chapter FRU Field Replaceable Unit List TravelMate 7520/7520G/7220/7220G FRU List TravelMate 7520/7520G/7220/7220G Exploded DiagramBattery 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 TravelMate 7520/7520G/7220/7220G Series Appendix aAppendix 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 Appendix B Test Compatible ComponentsCRT Port Test Microsoft Windows Vista Environment TestIR Test Appendix B 165Memory Card Test SD/MS/MMC/SM/CF/Microdrive/XD Appendix C Online Support Information168 Appendix C Index 169 IndexIndex Screw List 60, 61, 73

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