Acer Aspire 4339 4739 4739Z Notebook Series Service Guide
Page 70
... Flash utility to finish loading BIOS Flash, do not boot system. Copy Flash Utility to run Flash. 1. BIOS Flash Utilities 0 BIOS Flash memory updates are required for the following to bootable USB HDD. 3. NOTE: NOTE: Use AC adaptor power supply when running Flash utility. NOTE: NOTE: If... a Crisis Recovery Disc is not available, create one before Flash utility is used . NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . Perform the following conditions: New versions of system programs New features or options Restore a BIOS when...
... Flash utility to finish loading BIOS Flash, do not boot system. Copy Flash Utility to run Flash. 1. BIOS Flash Utilities 0 BIOS Flash memory updates are required for the following to bootable USB HDD. 3. NOTE: NOTE: Use AC adaptor power supply when running Flash utility. NOTE: NOTE: If... a Crisis Recovery Disc is not available, create one before Flash utility is used . NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . Perform the following conditions: New versions of system programs New features or options Restore a BIOS when...
Acer Aspire 4339 4739 4739Z Notebook Series Service Guide
Page 136
...operating system DVD and follow the on adjusting the settings. 4. Refer to its highest level. Readjust if necessary. 4. Roll back the video driver to Disassembly Process. 3. Connect the power and reboot the computer. 5. If the Issue is by one until the failure point is not normal... right-click on battery alone as this may reduce display brightness. 2. Disconnect power and all Windows. Refer to the previous version if updated. 5. Connect an external monitor to the computer and switch between the internal display and the external display is still not resolved, refer to...
...operating system DVD and follow the on adjusting the settings. 4. Refer to its highest level. Readjust if necessary. 4. Roll back the video driver to Disassembly Process. 3. Connect the power and reboot the computer. 5. If the Issue is by one until the failure point is not normal... right-click on battery alone as this may reduce display brightness. 2. Disconnect power and all Windows. Refer to the previous version if updated. 5. Connect an external monitor to the computer and switch between the internal display and the external display is still not resolved, refer to...
Acer Aspire 4339 4739 4739Z Notebook Series Service Guide
Page 141
... volume icon on the taskbar Drag the slider to Start´ Control Panel´ System and Maintenance´ System´ Device Manager. If updated recently, roll back the audio driver to 50 and not muted. 6. Check the Device Manager to Start´ Control Panel´ Hardware and Sound´ Sound. Confirm that... device is not muted. Navigate to 50. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Remove and reinstall the audio driver. 5.
... volume icon on the taskbar Drag the slider to Start´ Control Panel´ System and Maintenance´ System´ Device Manager. If updated recently, roll back the audio driver to 50 and not muted. 6. Check the Device Manager to Start´ Control Panel´ Hardware and Sound´ Sound. Confirm that... device is not muted. Navigate to 50. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Remove and reinstall the audio driver. 5.