Aspire Digital 7520G, 7220G manual Troubleshooting, Symptoms Verified Go To

Page 77

Chapter 4

Troubleshooting

Use the following procedure as a guide for computer problems.

NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses.

1.Obtain the failing symptoms in as much detail as possible.

2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.

3.Use the following table with the verified symptom to determine which page to go to.

Symptoms (Verified)

Go To

 

 

Power failure (The power indicator does not go

“Power System Check” on page 73

on or stay on).

 

 

 

POST does not complete. No beep or error

“Power-OnSelf-Test (POST) Error Message” on

codes are indicated.

page 76

 

“Undetermined Problems” on page 88

 

 

POST detects an error and displayed messages

“Error Message List” on page 77

on screen.

 

 

 

Other symptoms (i.e. LCD display problems or

“Power-OnSelf-Test (POST) Error Message” on

others).

page 76

 

 

Symptoms cannot be re-created (intermittent

Use the customer-reported symptoms and go to

problems).

“Power-OnSelf-Test (POST) Error Message” on

 

page 76

 

“Intermittent Problems” on page 87

 

“Undetermined Problems” on page 88

 

 

Chapter 4

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Contents Aspire 7520/7520G/7220/7220G Service GuideRevision History Date Chapter UpdatesDisclaimer CopyrightScreen Messages ConventionsPreface Page Chapter System SpecificationsFeatures Storage subsystem Environment System Block Diagram Top View Board LayoutPJP2 Bottom ViewPJP1 Icon Description Your Acer Notebook TourFront View Closed Front View DVI Left ViewRear view Right ViewBase view IndicatorsHDD Easy-Launch ButtonsIcon Function Description Touchpad Basics Launch Button Default applicationDesired Access Num Lock On Num Lock Off Using the KeyboardLock Keys and embedded numeric keypad Lock Key DescriptionHot Keys Windows KeysKey Icon Description Hot Key Icon Function DescriptionSpecial Key Euro symbolUS dollar sign Acer eNet Management Acer Empowering TechnologyEmpowering Technology password Page AC Mode Adapter mode Acer ePower ManagementAcer ePresentation Management Battery statusAcer eDataSecurity Management Chapter Acer eLock Management Acer eRecovery Management Acer eSettings Management Launching the Acer OrbiCam Acer GridVista dual-display compatible Using the System UtilitiesLaunch Manager Processor Hardware Specifications and ConfigurationsCPU Fan True Value Table Second Level CacheMemory Combinations System Memory2GB 0MBWireless Module 802.11a/b/g/n Bluetooth InterfaceLAN Interface Modem InterfaceATA/ATAPI-6 ATA-6 ATA/ATA-6 ATA-6 DVD-Dual InterfaceRPM USB Port Audio InterfacePcmcia Port System Board Major ChipsLCD 17 inch BatteryKeyboard AC Adapter System Power ManagementLCD Inverter System Power Management Chapter 00 GHz System Utilities Bios Setup UtilityNavigating the Bios Utility Parameter Description InformationRev MainParameter Description Format/Option Rev SecurityParameter Description Option Setting a PasswordClear or Set Changing a Password Removing a PasswordPage Acpi S3 AdvancedAcpi S1 Boot Exit Information Main Security Advanced BootBios Flash Utility Chapter Machine Disassembly and Replacement Before You Begin General InformationHDD Disassembly Procedure FlowchartDescription Part Number Screw ListScrew M2*3NL Screw M2*4Removing the Battery Pack Removing the Memory Removing the HDD ModuleRemoving the Wireless LAN Card/Modem Card and TV Tuner Card Removing the System Fan/Thermal Modules/VGA Board and CPU Removing the Keyboard and LCD Module Detach the LCD module from the main unit Disassembling the Main Unit Disassembling the Lower Case Assembly Page Chapter Disassembling the Upper Case Assembly Disassembling the LCD Module Page Disassembling the ODD Module Disassembling the External ModulesDisassembling the HDD Module Symptoms Verified Go To TroubleshootingExternal Diskette Drive Check System Check ProceduresExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckMemory check Power System CheckCheck the Power Adapter Touchpad Check Check the Battery PackPower-On Self-Test Post Error Message Error Code List Index of Error MessagesError Message List Error Codes Error MessagesCPU ID Cmos DimmCRT No beep Error Messages FRU/Action in SequenceLCD Code Beeps Post Routine Description Phoenix Bios Beep CodesChapter Code Beeps Post Routine Description Code Beeps LCD-Related Symptoms Index of Symptom-to-FRU Error MessageIndicator-Related Symptoms Power-Related SymptomsMemory-Related Symptoms PCMCIA-Related SymptomsSpeaker-Related Symptoms Power Management-Related SymptomsModem-Related Symptoms Peripheral-Related SymptomsKeyboard/Touchpad-Related Symptoms Intermittent Problems Dimm Undetermined ProblemsJumper and Connector Locations Bottom View FRU Field Replaceable Unit List Category Part Name and Description Acer Part No Aspire Poyang Exploded DiagramAudio Board Button Board W/CABLELED Board W/CABLE USB Board for TVPower Cord US 3 PIN PAL to Ntsc ConnectorPower Cord EU 3 PIN Power Cord AUS 3 PINCPU/PROCESSOR Intel CPU Merom Dual Core Thermal Door 17 DISE1 Ufcpga Intel CPU Merom Dual Core E1 UFCPGA478P Intel CPU Merom Dual CoreDS-8A1P 0FA DVD Super Multi Drive Hlds GSA DVD Super Multi Drive PhilipsDVD Super Multi Drive Sony AD ODD BEZEL-SUPER MultiHDD Bracket HDD DoorKeyboard Keyboard 17KB-FV2 105KS White US International Keyboard 17KB-FV2 105KS WhiteSWISS/G Keyboard 17KB-FV2 105KS White LCD WiresetThailand Keyboard 17KB-FV2 106KS White Turkish Keyboard 17KB-FV2 106KS WhiteMemory 512MB Ddrii LCD Cover Assy 17 Logo W/MIC WSamsung M470T6554EZ3-CE6 Memory 512MB Ddrii 667 Hynix Memory 1GB Ddrii 667 NanyaRemote Controller TS Accessory Remote Controller EURemote Controller SC Remote Controller EN