Acer 7520 manual Lcd, Post

Page 119

Error Message List

No beep Error Messages	FRU/Action in Sequence

No beep, power-on indicator turns off and	Power source (battery pack and power adapter). See “Power
LCD is blank.	System Check” on page 105..
	Ensure every connector is connected tightly and correctly.
	Reconnect the DIMM.
	LED board.
	System board.

No beep, power-on indicator turns on and	Power source (battery pack and power adapter). See “Power
LCD is blank.	System Check” on page 105..
	Reconnect the LCD connector
	Hard disk drive
	LCD inverter ID
	LCD cable
	LCD Inverter
	LCD
	System board

No beep, power-on indicator turns on and	Reconnect the LCD connectors.
LCD is blank. But you can see POST on an	LCD inverter ID
external CRT.	LCD cable
	LCD cable
	LCD inverter
	LCD
	System board

No beep, power-on indicator turns on and a	Ensure every connector is connected tightly and correctly.
blinking cursor shown on LCD during	System board
POST.

No beep during POST but system runs	Speaker
correctly.	System board

Chapter 4

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Image 119

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 Chapter FeaturesBelow is a brief summary of the computer’s many feature 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 ViewBottom Panel IndicatorsComputer has several easy-to-read status indicators Chapter 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 Technology Power. Press any key to returnHot Keys Special Key Euro symbolAcer eNet Management Acer Empowering TechnologyEmpowering Technology password 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 CenterNTI Shadow Using the System UtilitiesAcer Bio-Protection for selected models Acer GridVista dual-display compatible Select Tasks & Scans Launch ManagerNorton Internet Security Page CPU Fan True Value Table Hardware Specifications and ConfigurationsProcessor 0MB System MemoryMemory Combinations Hard Disk Drive Interface Bluetooth InterfaceWireless Module 802.11b/g 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 Remove HDD Password Remove HDD/BIOS UtilityThis section provide you with removing HDD/BIOS method 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 InformationScrew List External Module Disassembly ProcessExternal Modules Disassembly Flowchart Removing the Battery Pack Press the eject button to pop out the button Chapter Removing the SD dummy cardRemoving the PC and ExpressCard dummy cards 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 Remove the left and right hinge from the back cover Removing the Left and Right HingeRemoving the Antennas 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 SequenceCPU ID Dimm Bios ROMCmos Dimm Post LCDCode Beeps Post Routine Description Phoenix Bios Beep CodesSetup 114 Chapter Code Beeps 116 Chapter Power-Related Symptoms Symptom / Error Action in Sequence Index of Symptom-to-FRU Error MessageLCD-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 LocationsCPU USB ConnectorBottom View 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 Appendix a 140 Appendix aTravelMate 7520/7520G/7220/7220G Series 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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