Acer 5920G Series manual Check the Power Adapter

Page 76

Check the Power Adapter

Check the Power Adapter

Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. See the following figure:

Pin 1: +19 to +20.5V

Pin 2: 0V, Ground

1.If the voltage is not correct, replace the power adapter.

2.If the voltage is within the range, do the following: Replace the System board.

If the problem is not corrected, see “Undetermined Problems” on page 84.

If the voltage is not correct, go to the next step.

NOTE: An audible noise from the power adapter does not always indicate a defect.

3.If the power-on indicator does not light up, check the power cord of the power adapter for correct continuity and installation.

4.If the operational charge does not work, see “Check the Battery Pack” on page 71.

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Chapter 4

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Contents Aspire 5920G Series Service Guide PRINTED IN TAIWANRevision History Copyright DisclaimerConventions SCREEN MESSAGESPreface Page System Specifications FeaturesChapter Operating systemAudio Storage subsystemInput devices CommunicationLine-in jack RF-in port optionalTemperature EnvironmentHumidity non-condensing System Block Diagram Board Layout Top View1820 29 25 26 27Bottom View Subwoofer ConnectorYour Acer Notebook tour Front ViewClosed Front View Button to launch your internet browser andTo play, pause, record, rewind, fast forward infrared printer and IR-aware computerLeft View Accepts audio line-in devices e.g., audioAccepts input from external microphones Connects to a display device e.g., externalRear view Right ViewConnects to an AC adapter Base view IndicatorsThe computer has several easy-to-read status indicators Indicates when the hard disc or optical drive is active Easy-Launch ButtonsIndicates the status of wireless LAN communication Touchpad Basics Lock Keys and embedded numeric keypad Using the KeyboardWindows Keys Windows key Hot KeysThis key has the same effect as clicking the right The Euro symbol Special KeyThe US dollar sign Empowering Technology password Acer Empowering TechnologyAcer eNet Management Chapter Acer ePower Management DC Mode Battery modeTo create new power plan AC Mode Adapter modeAcer ePresentation Management Battery statusAcer eDataSecurity Management Chapter Acer eLock Management Acer eRecovery Management Acer eSettings Management Getting to know your Acer OrbiCamUsing the Acer OrbiCam as webcam Changing the Acer OrbiCam resolutionLaunching the Acer OrbiCam Using the System Utilities Acer GridVista dual-display compatibleLaunch Manager Hardware Specifications and Configurations BIOSProcessor CPU Fan True Value TableSystem Memory Memory CombinationsBluetooth Interface Wireless Module 802.11a/b/g/nLAN Interface Modem InterfaceDVD-Dual Interface Audio InterfaceUSB Port PCMCIA PortSystem Board Major Chips KeyboardBattery LCD 15.4” inchSystem Power Management Power ManagementSpecification LCD InverterSystem Utilities BIOS Setup Utility BootSecurity ExitNavigating the BIOS Utility Information Main System TimeShows system base memory size Shows extended memory sizeChapter Security Set Supervisor PasswordSet User Password Set Hard Disk PasswordSetting a Password Clear or SetRemoving a Password Changing a PasswordChapter Boot BootBoot priority order Excluded from boot orderExit Exit Discarding Changes Load Setup DefaultsExit Exit Saving ChangesBIOS Flash Utility Machine Disassembly and Replacement General Information Before You BeginDisassembly Procedure Flowchart Assembly WirelessLCD Module LCD Bezel1. Unlock the battery lock move the battery lock to the right Removing the Battery Pack2. Slide the battery release latch then remove the battery Removing the HDD Module Removing the Memory and Wireless LAN CardRemoving the ODD Module Removing the VGA Board and Thermal Module 17. Remove one screw from inside the battery compartment Removing the Keyboard and LCD Module 10. Remove the four screws securing the hinges 9. Pull out the wireless LAN antennas from the cable holders as shown11. Detach the LCD module from the main unit Separate the Main Unit Into the Upper and the Lower Case Assembly Disassembling the Lower Case AssemblyDisassembling the Main Unit Removing the Power BoardRemoving the Subwoofer Removing the MDC Card Module10. Disconnect the subwoofer cable from the main board 11. Remove the four screws fastening the subwooferRemoving the CPU Removing the USB BoardRemoving the Main Board Disassembling the Upper Case Assembly Removing the Touchpad BoardRemoving the DC Cable and Jack Removing the Email BoardRemoving the Launch Key Board Removing the Speaker31. Remove the four screws fastening the launch key board 32. Disconnect the launch key board cable as shownDisassembling the LCD Module Disassembling the HDD Module Disassembling the External ModulesDisassembling the ODD Module Chapter Symptoms Verified TroubleshootingGo To System Check Procedures External Diskette Drive CheckExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckPower System Check Memory checkCheck the Power Adapter Check the Battery Pack Touchpad CheckPower-On Self-Test POST Error Message Error Code List Index of Error MessagesError Message List Error Messages No beep, power-on indicator turns off and LCD is Phoenix BIOS Beep Codes CodeBeeps POST Routine Description2-1-2-3 Beeps CodePOST Routine Description Chapter 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 1820 Jumper and Connector Locations29 25 26 27 Bottom View FRU Field Replaceable Unit List Aspire Chapla Exploded Diagram CategoryPart Name and Description Acer Part NoPart Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description CategoryAcer Part No Part Name and Description SCREW M1.6*4.0-I NINYLOK