Aspire Digital H341, H342 manual System Troubleshooting, Hardware Diagnostic Procedure

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Chapter 4

System Troubleshooting

This chapter provides instructions on how to troubleshoot system hardware problems.

Hardware Diagnostic Procedure

The system’s diagnostic function monitors system activity and performs

IMPORTANT:The diagnostic tests described in this chapter are only intended to test 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 recreate the failure by running the diagnostic tests or repeating the same operation. Refer to the “System Diagnosis” on page 43 for more information.

3.Refer to the table below to determine which corrective action to perform.

System Check Procedures

System Diagnosis

Checkpoints

Undertermined Problems

Chapter 4

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Contents Aspire EasyStore H341/H342 Service Guide Revision History Copyright Disclaimer Conventions Service Guide Coverage Table of Contents FRU Field Replaceable Unit List Chapter FeaturesFront Panel System TourIcon Component Rear Panel Internal Components LED indicator Color LED status Description System LED IndicatorsLED indicator Color LED status Description Rear panel Chapter System Utilities AMI Bios Setup UtilityEntering the Bios Setup Utility Navigating Through the Setup Utility Setup Utility Menus Main Advanced Boot Chipset Exit Chapter Disassembly Requirements System DisassemblyPre-disassembly Procedure Main Unit Disassembly Main Unit DisassemblyRemoving the Hard Disk Page Chapter Removing the System Cover Removing the Front Bezel Pull the bezel away from the chassis Chapter Removing the Front I/O Board Remove the four screws C that secure the front I/O board Removing the Backplane Board Chapter Lift the backplane board off the bracket Removing the Power Supply Remove the four screws a that secure the power supply Page Removing the Fan Removing the Memory Module Chapter Removing the Mainboard Removing the HDD Access LED cables Hardware Diagnostic Procedure System TroubleshootingPower system check System Check ProceduresSystem external inspection System internal inspectionSystem Diagnosis Hardware diagnostic programUSB disk Identifying the components Debug cardPost Code Checkpoints Viewing Bios checkpointsPost code checkpoints list Checkpoint DescriptionBootblock recovery code checkpoints Post code checkpoints Device Initialization Manager code checkpoints High Byte XY Operating condition HDD LED error codes Description System Status Error CodesTo create a Bios Recovery disk Bios RecoveryClearing Cmos  Dimm Undetermined ProblemsChapter System Block Diagram System Block Diagram and Board LayoutMainboard Board LayoutSystem Jumpers Name Location SettingsChapter FRU Field Replaceable Unit List Exploded Diagram QTY Part NameQTY FRU ListFront I/O Board Bracket Assy Brkt AS Front I/O HT-361 Memory Unifosa UNB-DIMM Dimm 1G Appendix a SpecificationSystem Memory Network Interface Specification