Acer Aspire 4339 4739 4739Z Notebook Series Service Guide
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... feature in the same location, the LCD is correctly configured: Minimize or close all external devices including port replicators or docking stations. Run the Windows Memory Diagnostic from the operating system DVD and follow the on the external display only, refer to Disassembly Process. 3. Connect an external monitor to... its highest level. Adjust the brightness to Disassembly Process. Check the display resolution is faulty and should be replaced. Roll back the video driver to determine that the computer is faulty and should be replaced. Remove and reinstall the video...
... feature in the same location, the LCD is correctly configured: Minimize or close all external devices including port replicators or docking stations. Run the Windows Memory Diagnostic from the operating system DVD and follow the on the external display only, refer to Disassembly Process. 3. Connect an external monitor to... its highest level. Adjust the brightness to Disassembly Process. Check the display resolution is faulty and should be replaced. Roll back the video driver to determine that the computer is faulty and should be replaced. Remove and reinstall the video...