Acer 49.49C02.001 manual Memory Check, Power System Check

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The following auxiliary input devices are supported by this computer:

6Numeric keypad External keyboard

If any of these devices do not work, reconnect the cable connector and repeat the failing operation.

Memory Check

Memory errors might stop system operations, show error messages on the screen, or hang the system.

1.Boot from the diagnostics diskette and start the PQA program (please refer to “Running PQA Diagnostics Program” on page 34.

2.Go to the diagnostic memory in the test items.

3.Press F2 in the test items.

4.Follow the instructions in the message window.

NOTE: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error.

Power System Check

To verify the symptom of the problem, power on the computer using each of the following power sources:

1.Remove the battery pack.

2.Connect the power adapter and check that power is supplied.

3.Disconnect the power adapter and install the charged battery pack; then check that power is supplied by the battery pack.

If you suspect a power problem, see the appropriate power supply check in the following list:

6“Check the Power Adapter” on page 59 “Check the Battery Pack” on page 60

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.

6If the problem is not corrected, see “Undetermined Problems” on page 68.

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 60.

Chapter 4

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Contents TravelMate Service GuideDisclaimer CopyrightConventions Preface Table of Contents Chapter Jumper and Connector Locations Chapter TroubleshootingSW4 Settings Appendix C Online Support Information 101 Index 103Features System SpecificationsVideo performance CPU System Block DiagramTop View Board LayoutBottom View Icon Port Connects to PanelLeft Panel Rear Panel DockMate V mini docking station Bottom PanelRight Panel Icon Function Description IndicatorsHot Key Icon Function Description Hot KeysHardware Specifications and Configurations Memory Combinations Floppy Disk Drive Interface DVD-ROM Interface Video Interface Video Resolutions ModeVideo Memory Parallel PortUSB Port Serial PortIrDA Port Pcmcia PortDC-AC LCD Inverter BatteryAC Adapter Environmental Requirements Power ManagementMechanical Specification Address Map Memory Address MapMemory Address Size Function Address FunctionDMA Channel Assignment IRQ Assignment MapInterrupt Channel Function DMA Channel FunctionNavigating the Bios Utility Bios Setup UtilityParameter Description Format System InformationUuid Basic System SettingsParameter Description Options Startup ConfigurationSetting the Boot Drive Sequence Onboard Device ConfigurationSystem Security System SecuritySetting a Password Removing a Password Load Default SettingsExecuting Flash Program Flash UtilityPanel ID Utility System Utility DisketteThermal and Fan Utility Main Board Data UtilityDisk System Diagnostic DisketteRunning PQA Diagnostics Program Diag Result Diag Chapter Machine Disassembly and Replacement Before You Begin General InformationIs a S S E M B L Y FLO W C H a R T O F TM Disassembly Procedure FlowchartScrew List Removing the Battery Pack Removing the External Dimm Module Removing the External Modem Combo Card Removing the CD-ROM/DVD-ROM Module Removing the Hard Disk Drive Module Removing the Floppy Disk Drive Module Removing the Keyboard Disassembling the Main UnitRemoving the TouchPad Module Removing the LCD ModuleRemoving the CPU Separating the Lower Case from the Upper Case Removing the RTCRemoving the DC-DC Charger Board Removing the FanRemoving the System Board Removing the Modem Power CableRemoving the Audio Jack Cover Removing the Pcmcia SocketRemoving the LCD Bezel Removing the Speaker Assembly ModuleDisassembling the LCD Module Removing the LCD Bracket Removing the Inverter BoardRemoving the Microphone Removing the LED BoardRemoving the Left and Right Hinges Symptoms Verified Go To TroubleshootingExternal Diskette Drive Check System Check ProceduresExternal CD-ROM Drive Check Keyboard or Auxiliary Input Device CheckMemory Check Power System CheckTouchpad Check Check the Battery PackPower-On Self-Test Post Error Message Error Messages FRU/Action in Sequence Index of Error MessagesError Message List LCD No beep Error Messages FRU/Action in SequenceLCD-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 ProblemsError Message Action in Sequence Index of AFlash Bios Error MessageError Code Message Action in Sequence Index of PQA Diagnostic Error Code, MessagePCB 99202-SB Top ViewSetting SW4 SettingsBottom View Chapter FRU Field Replaceable Unit List Chapter Memory Picture Partname Description ProcessorLCD Picture Partname DescriptionSpeaker to LED Speaker Assembly Assy Speaker MIC Cable Microphone WM-60A LCD Assembly Assy LCD Module LCD Bracket R Brkt -R CPT SUS MODULE15 Hitachi HDD FDD Mechanical Parts Middle Cover CVR Middle KU2-1518 Picture Partname Description Touchpad Cable Picture Partname Description KeyboardMiscellaneous PowerOthers ScrewsModel Model Number DefinitionsExt ModuleAppendix a Test Compatible Components Windows 95 Environment Test SpecificationsWindows 98 Environment Test Windows 2000 Environment Test Windows NT Environment Test 100 Online Support Information 102 Index Online Support Information Page 106

49.49C02.001 specifications

The Acer 49.49C02.001 is a remarkable addition to Acer's lineup of high-performance displays, tailored for gamers and professionals alike. This monitor is characterized by its expansive 49-inch curved screen, which creates an immersive viewing experience that draws the user in. The display features a super ultra-wide 32:9 aspect ratio, providing ample screen real estate for multitasking or fully immersing oneself in gaming.

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