Acer 4020 manual No beep Error Messages FRU/Action in Sequence

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Error Message List

No beep Error Messages	FRU/Action in Sequence

No beep, power-on indicator turns off and LCD is	Power source (battery pack and power adapter). See “Power
blank.	System Check” on page 65.
	Ensure every connector is connected tightly and correctly.
	Reconnect the DIMM.
	LED board.
	System board.

No beep, power-on indicator turns on and LCD is	Power source (battery pack and power adapter). See “Power
blank.	System Check” on page 65.
	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 LCD is	Reconnect the LCD connectors
blank. But you can see POST on an external	LCD inverter ID
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 POST.	System board

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

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Chapter 4

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Contents Acer TravelMate 4020 Series Revision History Copyright DisclaimerConventions Screen MessagesPreface Page Features ChapterStorage Battery Mainboard Placement Top ViewRear View Description Block Diagram 5V / 3.3VOpen View Outlook ViewDescription Front Panel Icon DescriptionLeft View Right View Power jack Connects to an AC adapter External display port Bottom View Indicators Easy-launch buttons Touchpad Touchpad BasicsUsing the Keyboard Lock keys and embedded numeric keypadLock Key Description Desired action Num Lock on Num Lock offHot Keys Key DescriptionSpecial Keys Hot Key Function DescriptionEuro symbol US dollar signUsing System Utilities Acer eManagerLaunch Manager Hardware Specifications and Configurations Processor SpecificationSystem Board Major Chips L2 CacheSystem Memory Specification LAN Interface SpecificationModem/Bluetooth Interface Specification USB Port SpecificationPcmcia Port Specification Keyboard SpecificationBattery Specification Package configurationLCD 15.4 Wxga Specification Mechanical SpecificationsSpecifications Mechanical SpecificationAC Adapter Specification Input RequirementsOutput Ratings CV mode Output Ratings CC modeDynamic Output Characteristics Power Management Acpi ModeDimensions and Weight Details Logical ConfigurationEnvironmental Requirements Data Storage PhysicalToshiba Nominal Power Requirements Physical & Environmental Specs Dimensions/WeightAmbient Temperature Reliability Characteristics Error RatesPreventive Maintenance Bios Setup Utility System UtilitiesInformation Parameter DescriptionUuid Advanced Security Boot Exit MainF12 Boot Menu Security Boot Exit AdvancedSecurity Parameter Description OptionSet Supervisor/User Password DisabledCharacters 0-9,A-Z not case sensitive EnterSetup Notice Changes have been saved Continue Boot ExitInfo Main Advanced Security Boot ExitChapter Machine Disassembly and Replacement General Information Before You BeginChapter Disassembly Procedure Flowchart Screw List DescriptionRemoving the Battery Pack Removing the Memory and the Wireless LAN Card Removing the HDD ModuleRemoving the Thermal Module and CPU Removing the ODD Module Removing the LCD Module Disassembling the Main Unit Disassembling the Upper Case Assembly Disassembling the Lower Case Assembly Chapter Disassembling the LCD Module Chapter Disassembling the External Modules Disassembling the Optical Drive ModuleChapter Troubleshooting System Check Procedures External Diskette Drive CheckExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckPower System Check Memory checkTouchpad Check Power-on Self-Test Error Messages Error Code List Index of Error MessagesError Message List CPU ID No beep Error Messages FRU/Action in Sequence Phoenix Bios Beep Codes Code Beeps Post Routine DescriptionCode Beeps Post Routine Description Chapter Code Beeps Post Routine Description Index of Symptom-to-FRU Error Message LCD-Related SymptomsIndicator-Related Symptoms Power-Related SymptomsPCMCIA-Related Symptoms Memory-Related SymptomsSpeaker-Related Symptoms Power Management-Related SymptomsKeyboard/Touchpad-Related Symptoms Peripheral-Related SymptomsModem-Related Symptoms Intermittent Problems Undetermined Problems DimmChapter Jumper and Connector Locations Top ViewRear View VGA RAM RTC Jumper FRU Field Replaceable Unit List Exploded Diagram Illustration Part Name Description Acer P/N Touch PAD Board ZL1A Touch PAD Lower Case W ZL3A Base Assy W/O DVD/CDRW Combo ZI6 Combo SBW-242C DVD Dual Drive ZL6 DVD Rwdual ZL1A K/B EUGO-U/I LCD Cable 15 ZL1A 15 LCD Cabel LCD Module 15 ZL1 15 LCD SXGA+ LCD Module 15.4 ZL1A 15.4 LCD Wxga Samsung LTN154X3 Samsung Panel UMA W/PCMCIA Slot CPU Memory Memory DDR333 Name Plate ZL3A Name Plate S Screw M2.5*4L-BZN ET2S Screw 100 Chapter