Toshiba L510 PSLQ0C-01600C Users Manual Canada; English - Page 149
External monitor, Sound system, Problem, Procedure, FN + F5
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Troubleshooting External monitor Refer also to Chapter 8, Optional Devices, and to your monitor's documentation. Problem Procedure Monitor does not turn on Make sure that the external monitor's power switch is on. Confirm that the external monitor's power cable is plugged into a working power outlet. No display Try adjusting the contrast and brightness controls on the external monitor. Press hot keys FN + F5 to change the display priority and make sure it is not set for the internal display. Display error occurs Check that the cable connecting the external monitor to the computer is attached firmly. If problems persist, contact your dealer. Sound system Problem No sound is heard Procedure Adjust the volume control dial. Check the software volume settings. Make sure the headphone connection is secure. Check Windows Device Manager. Make sure the sound function is enabled and that settings for I/O address, Interrupt level and DMA are correct for your software and do not conflict with other hardware devices that you may have connected to the computer. If problems persist, contact your dealer. USB Refer also to your USB device's documentation. Problem Procedure USB device does not Check for a firm cable connection between the work USB ports on the computer and the USB device. Make sure the USB device drivers are properly installed. Refer to your Windows documentation for information on checking the drivers. User's Manual 9-11