Acer Aspire 4250 Notebook Service Manual
Page 70
NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . NOTE: NOTE: Use AC adaptor power supply when running Flash utility. If battery pack does not contain power ...
NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when Flash is used . NOTE: NOTE: Use AC adaptor power supply when running Flash utility. If battery pack does not contain power ...
Acer Aspire 4250 Notebook Service Manual
Page 134
...click on battery alone as this may reduce display brightness. 2. If desktop display resolution is properly installed. Roll back the video driver to the User Manual for instructions on the external display only, refer to the computer and switch between the internal display and... appear in the application. Adjust the brightness to Maintenance Flowchart). 11. Click Apply and check the display. Remove and reinstall the video driver. 6. Remove the drives (refer to its highest level. Refer to Maintenance Flowchart. Check the display resolution is faulty and should be ...
...click on battery alone as this may reduce display brightness. 2. If desktop display resolution is properly installed. Roll back the video driver to the User Manual for instructions on the external display only, refer to the computer and switch between the internal display and... appear in the application. Adjust the brightness to Maintenance Flowchart). 11. Click Apply and check the display. Remove and reinstall the video driver. 6. Remove the drives (refer to its highest level. Refer to Maintenance Flowchart. Check the display resolution is faulty and should be ...
Acer Aspire 4250 Notebook Service Manual
Page 139
... device conflicts No hardware is not muted. Confirm that the volume is listed under Other Devices 3. If updated recently, roll back the audio driver to 50 and not muted. 6. Boot the computer. 2. Navigate to Start´ Control Panel´ Hardware and Sound´ Sound. ...Navigate to Start´ Control Panel´ System and Maintenance´ System´ Device Manager. Remove and reinstall the audio driver. 5. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Make sure that all volume controls are set...
... device conflicts No hardware is not muted. Confirm that the volume is listed under Other Devices 3. If updated recently, roll back the audio driver to 50 and not muted. 6. Boot the computer. 2. Navigate to Start´ Control Panel´ Hardware and Sound´ Sound. ...Navigate to Start´ Control Panel´ System and Maintenance´ System´ Device Manager. Remove and reinstall the audio driver. 5. Internal Speaker Failure 0 If internal Speakers fail, perform the following , one at a time. 1. Make sure that all volume controls are set...
Acer Aspire 4250 Notebook Service Manual
Page 147
... initial Variable Service DXE_MTC_INIT DXE 4D MTC Initial DXE_CPU_INIT DXE 4E CPU Middle Initialization DXE_MP_CPU_INIT DXE 4F Multi-processor Middle Initialization DXE_SMBUS_INIT DXE 50 SMBUS Driver Initialization DXE_SMART_TIMER_INIT DXE 51 8259 Initialization DXE_PCRTC_INIT DXE 52 RTC Initialization Troubleshooting 4-19 Platform dependence. DXE Phase POST Code Table Functionality Name (Include\ PostCode.h) Phase...
... initial Variable Service DXE_MTC_INIT DXE 4D MTC Initial DXE_CPU_INIT DXE 4E CPU Middle Initialization DXE_MP_CPU_INIT DXE 4F Multi-processor Middle Initialization DXE_SMBUS_INIT DXE 50 SMBUS Driver Initialization DXE_SMART_TIMER_INIT DXE 51 8259 Initialization DXE_PCRTC_INIT DXE 52 RTC Initialization Troubleshooting 4-19 Platform dependence. DXE Phase POST Code Table Functionality Name (Include\ PostCode.h) Phase...
Acer Aspire 4250 Notebook Service Manual
Page 149
...BDS_CONNECT_USB_HC BDS 19 USB host controller initialization BDS_CONNECT_USB_BUS BDS 1A USB BUS driver initialization BDS_CONNECT_USB_DEVICE BDS 1B USB device driver initialization BDS_NO_CONSOLE_ACTION BDS 1C Console device initial fail BDS_DISPLAY_LOGO_SYSTEM_INFO BDS 1D Display... SATA controller initialization BDS_START_ISA_ACPI_CONTROLLER BDS 20 SIO controller initialization BDS_START_ISA_BUS BDS 21 ISA BUS driver initialization BDS_START_ISA_FDD BDS 22 Floppy device initialization BDS_START_ISA_SEIRAL BDS 23 Serial device initialization BDS_START_IDE_BUS...
...BDS_CONNECT_USB_HC BDS 19 USB host controller initialization BDS_CONNECT_USB_BUS BDS 1A USB BUS driver initialization BDS_CONNECT_USB_DEVICE BDS 1B USB device driver initialization BDS_NO_CONSOLE_ACTION BDS 1C Console device initial fail BDS_DISPLAY_LOGO_SYSTEM_INFO BDS 1D Display... SATA controller initialization BDS_START_ISA_ACPI_CONTROLLER BDS 20 SIO controller initialization BDS_START_ISA_BUS BDS 21 ISA BUS driver initialization BDS_START_ISA_FDD BDS 22 Floppy device initialization BDS_START_ISA_SEIRAL BDS 23 Serial device initialization BDS_START_IDE_BUS...