Acer Aspire E1-421 Notebook Service Guide
Page 22
Note: Push to remove/install the card. Indicates the computer's power status. 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 ...
Note: Push to remove/install the card. Indicates the computer's power status. 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
Page 48
... 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
Page 72
... versions of system programs New features or options Restore a BIOS when it becomes corrupted. NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . Copy Flash Utility to run Flash. 1. NOTE: NOTE: Flash utility has auto execution function. 2-14 System Utilities...
... versions of system programs New features or options Restore a BIOS when it becomes corrupted. NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . Copy Flash Utility to run Flash. 1. NOTE: NOTE: Flash utility has auto execution function. 2-14 System Utilities...
Acer Aspire E1-421 Notebook Service Guide
Page 170
... Issue is listed under Other Devices 7. Adjust the brightness to Disassembly Process. 3. Refer to its highest level. Remove and reinstall the video driver. 6. There are no red Xs or yellow exclamation marks There are no device conflicts No hardware is still not...including port replicators or docking stations. NOTE: NOTE: Make sure that : The device is properly installed. Roll back the video driver to LCD Picture Failure. 7. Check the Device Manager to determine that the computer is not running on the external display only, refer to ...
... Issue is listed under Other Devices 7. Adjust the brightness to Disassembly Process. 3. Refer to its highest level. Remove and reinstall the video driver. 6. There are no red Xs or yellow exclamation marks There are no device conflicts No hardware is still not...including port replicators or docking stations. NOTE: NOTE: Make sure that : The device is properly installed. Roll back the video driver to LCD Picture Failure. 7. Check the Device Manager to determine that the computer is not running on the external display only, refer to ...
Acer Aspire E1-421 Notebook Service Guide
Page 174
... range: Click the volume icon on the taskbar Drag the slider to 50. Remove and reinstall the audio driver. 5. If updated recently, roll back the audio driver to Start Control Panel System and Maintenance System Device Manager. Boot the computer. 2. Internal Speaker Failure 0 If...
... range: Click the volume icon on the taskbar Drag the slider to 50. Remove and reinstall the audio driver. 5. If updated recently, roll back the audio driver to Start Control Panel System and Maintenance System Device Manager. Boot the computer. 2. Internal Speaker Failure 0 If...
Acer Aspire E1-421 Notebook Service Guide
Page 184
...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...