Acer Aspire E1-421 Notebook Service Guide
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...'s battery status. 1. Only one card can operate at any given time. Closed Front View Table 1-2. Note: Push to remove/install the card. Indicates the hard driver or card reader's activity of read/write operations Indicates the computer's wireless (3G/Wi-Fi) connectivity device status. 1-12 Hardware Specifications and Configurations Indicates the...
...'s battery status. 1. Only one card can operate at any given time. Closed Front View Table 1-2. Note: Push to remove/install the card. Indicates the hard driver or card reader's activity of read/write operations Indicates the computer's wireless (3G/Wi-Fi) connectivity device status. 1-12 Hardware Specifications and Configurations Indicates the...
Acer Aspire E1-421 Notebook Service Guide
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... and Amplifier Item Audio Controller Features Amplifier Specification Conexant 20584 24-bit, 2 pairs of independent DACs and 3 pairs of independent ADCs ProCoustic headphone driver delivers 50 mW into 32 ohm load with no pop, eliminating the need for an external amplifier and DC-blocking capacitors Integrated 5 V to 3.3 V low...
... and Amplifier Item Audio Controller Features Amplifier Specification Conexant 20584 24-bit, 2 pairs of independent DACs and 3 pairs of independent ADCs ProCoustic headphone driver delivers 50 mW into 32 ohm load with no pop, eliminating the need for an external amplifier and DC-blocking capacitors Integrated 5 V to 3.3 V low...
Acer Aspire E1-421 Notebook Service Guide
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...;New features or options Restore a BIOS when it becomes corrupted. Boot system from bootable USB HDD. NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . NOTE: NOTE: Flash utility has auto execution function. 2-14 System Utilities If battery pack does not contain power...
...;New features or options Restore a BIOS when it becomes corrupted. Boot system from bootable USB HDD. NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . NOTE: NOTE: Flash utility has auto execution function. 2-14 System Utilities If battery pack does not contain power...
Acer Aspire E1-421 Notebook Service Guide
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...the desired resolution. Click Apply and check the display. Refer to External Module Disassembly Process. Remove and reinstall the video driver. 6. Refer to the User Manual for instructions on the desktop and select Personalize Display Settings. Click and drag the ... running on -screen prompts. 9. If the Issue is still not resolved, refer to the previous version if updated. 5. Roll back the video driver to Online Support Information. Abnormal Video 0 If the video appears abnormal, perform the following: 1. NOTE: NOTE: Make sure that : ...
...the desired resolution. Click Apply and check the display. Refer to External Module Disassembly Process. Remove and reinstall the video driver. 6. Refer to the User Manual for instructions on the desktop and select Personalize Display Settings. Click and drag the ... running on -screen prompts. 9. If the Issue is still not resolved, refer to the previous version if updated. 5. Roll back the video driver to Online Support Information. Abnormal Video 0 If the video appears abnormal, perform the following: 1. NOTE: NOTE: Make sure that : ...
Acer Aspire E1-421 Notebook Service Guide
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Remove and reinstall the audio driver. 5. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Confirm that the volume is listed under Other Devices 3. Check the Device ... Device Manager. Navigate to 50. Internal Speaker Failure Sound Problems 0 Perform the following : Figure 4-6. Boot the computer. 2. If updated recently, roll back the audio driver to the previous version. 4.
Remove and reinstall the audio driver. 5. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Confirm that the volume is listed under Other Devices 3. Check the Device ... Device Manager. Navigate to 50. Internal Speaker Failure Sound Problems 0 Perform the following : Figure 4-6. Boot the computer. 2. If updated recently, roll back the audio driver to the previous version. 4.
Acer Aspire E1-421 Notebook Service Guide
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...2F BDS 30 BDS 31 BDS 32 BDS_LEGACY_BOOT_EVENT BDS 33 Description USB host controller initialization USB BUS driver initialization USB device driver initialization Console device initial fail Display logo or system information IDE controller initialization SATA controller initialization SIO controller... initialization ISA BUS driver initialization Floppy device initialization Serial device initialization IDE device initialization AHCI device initialization Dispatch option ROMs Get...
...2F BDS 30 BDS 31 BDS 32 BDS_LEGACY_BOOT_EVENT BDS 33 Description USB host controller initialization USB BUS driver initialization USB device driver initialization Console device initial fail Display logo or system information IDE controller initialization SATA controller initialization SIO controller... initialization ISA BUS driver initialization Floppy device initialization Serial device initialization IDE device initialization AHCI device initialization Dispatch option ROMs Get...