Acer Aspire 7250 Service Guide
Page 48
NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when the Flash is used . Boot the system from the bootable diskette. Copy the Flash utilities to finish loading of system programs ...
NOTE: NOTE: Do not install memory related drivers (XMS, EMS, DPMI) when the Flash is used . Boot the system from the bootable diskette. Copy the Flash utilities to finish loading of system programs ...
Acer Aspire 7250 Service Guide
Page 130
...is still not resolved, refer to Disassembly Process. 3. Click and drag the Resolution slider to Disassembly Process. Roll back the video driver to Disassembly Process. If the Issue is still not resolved, refer to Online Support Information. 4-6 Troubleshooting Boot the computer. Refer...Manager to LCD Failure. 7. Adjust the brightness to Disassembly Process). 11. Refer to Online Support Information. Remove and reinstall the video driver. 6. If desktop display resolution is not normal, right-click on the screen), the LCD is not running on adjusting the settings...
...is still not resolved, refer to Disassembly Process. 3. Click and drag the Resolution slider to Disassembly Process. Roll back the video driver to Disassembly Process. If the Issue is still not resolved, refer to Online Support Information. 4-6 Troubleshooting Boot the computer. Refer...Manager to LCD Failure. 7. Adjust the brightness to Disassembly Process). 11. Refer to Online Support Information. Remove and reinstall the video driver. 6. If desktop display resolution is not normal, right-click on the screen), the LCD is not running on adjusting the settings...
Acer Aspire 7250 Service Guide
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Boot the computer. 2. Remove and reinstall the audio driver. 5. NG Swap I /O Board OK? Make sure that other audio applications are set mid range: Click the volume icon on the task bar Drag the slider ... is not muted. Click Mixer to 50. Internal Speaker Failure Sound Problems 0 Perform the following , one at a time. If updated recently, roll back the audio driver to MB Check I/O Board Connection NG Reassemble I/O Board FPC Check SPK module NG Swap Reassemble The SPK module Check I /O Board Swap MB Swap MB Figure...
Boot the computer. 2. Remove and reinstall the audio driver. 5. NG Swap I /O Board OK? Make sure that other audio applications are set mid range: Click the volume icon on the task bar Drag the slider ... is not muted. Click Mixer to 50. Internal Speaker Failure Sound Problems 0 Perform the following , one at a time. If updated recently, roll back the audio driver to MB Check I/O Board Connection NG Reassemble I/O Board FPC Check SPK module NG Swap Reassemble The SPK module Check I /O Board Swap MB Swap MB Figure...
Acer Aspire 7250 Service Guide
Page 141
HDMI and CRT Failure Troubleshooting 4-17 Do not replace a non-defective FRU: START CRT/HDMI connection check NG Check Drivers install OK or not in Device NG manager Swap MB Reinsert CRT/HDMI Connector Reinstall corrcet driver Figure 4-12. HDMI and CRT Failure 0 If the HDMI or CRT function fails, perform the following, one at a time.
HDMI and CRT Failure Troubleshooting 4-17 Do not replace a non-defective FRU: START CRT/HDMI connection check NG Check Drivers install OK or not in Device NG manager Swap MB Reinsert CRT/HDMI Connector Reinstall corrcet driver Figure 4-12. HDMI and CRT Failure 0 If the HDMI or CRT function fails, perform the following, one at a time.
Acer Aspire 7250 Service Guide
Page 146
... to 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 MiddleInitialization DXE_SMBUS_INIT DXE 50 SMBUS Driver Initialization DXE_SMART_TIMER_INIT DXE 51 8259 Initialization 4-22 Troubleshooting Table 4-4.
... to 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 MiddleInitialization DXE_SMBUS_INIT DXE 50 SMBUS Driver Initialization DXE_SMART_TIMER_INIT DXE 51 8259 Initialization 4-22 Troubleshooting Table 4-4.
Acer Aspire 7250 Service Guide
Page 148
...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... 1F 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...
...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... 1F 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...