Acer Aspire E1-531 and E1-571 Notebook Service Guide
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... boot the system. • Flash utility has auto execution function. See Creating a USB Flash Crisis Disk on page 2-25. • Do not install memory related drivers (XMS, EMS, DPMI) when BIOS Flash is used • Use an AC adaptor power supply when running BIOS Flash utility. BIOS Flash may be performed...
... boot the system. • Flash utility has auto execution function. See Creating a USB Flash Crisis Disk on page 2-25. • Do not install memory related drivers (XMS, EMS, DPMI) when BIOS Flash is used • Use an AC adaptor power supply when running BIOS Flash utility. BIOS Flash may be performed...
Acer Aspire E1-531 and E1-571 Notebook Service Guide
Page 179
.... Run the Windows Memory Diagnostic from the operating system DVD and follow the on adjusting the settings. Troubleshooting 4-5 Roll back the video driver to its highest level. Boot the computer. • If permanent vertical/horizontal lines or dark spots appear in the same location, the... dim at the highest brightness setting, the LCD is still not resolved, refer to Maintenance Flowchart on page 8-2. Remove and reinstall the video driver. 6. If the issue is faulty and should be replaced. • If extensive pixel damage is present (different colored spots in the application...
.... Run the Windows Memory Diagnostic from the operating system DVD and follow the on adjusting the settings. Troubleshooting 4-5 Roll back the video driver to its highest level. Boot the computer. • If permanent vertical/horizontal lines or dark spots appear in the same location, the... dim at the highest brightness setting, the LCD is still not resolved, refer to Maintenance Flowchart on page 8-2. Remove and reinstall the video driver. 6. If the issue is faulty and should be replaced. • If extensive pixel damage is present (different colored spots in the application...
Acer Aspire E1-531 and E1-571 Notebook Service Guide
Page 183
... Problems 0 Perform the following : Start OK Check M/B SPK cable NG OK Re-assemble the SPK cable to 50. If updated recently, roll back the audio driver to Start > Control Panel > System and Maintenance > System > Device Manager. Make sure that : • The device is properly installed • There are no device conflicts... Logic lower OK Swap M/B NG Swap Logic lower Figure 4:6. Internal Speaker Failure If the internal speakers fail, perform the following : 1. Remove and reinstall the audio driver. 5.
... Problems 0 Perform the following : Start OK Check M/B SPK cable NG OK Re-assemble the SPK cable to 50. If updated recently, roll back the audio driver to Start > Control Panel > System and Maintenance > System > Device Manager. Make sure that : • The device is properly installed • There are no device conflicts... Logic lower OK Swap M/B NG Swap Logic lower Figure 4:6. Internal Speaker Failure If the internal speakers fail, perform the following : 1. Remove and reinstall the audio driver. 5.