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. If a version of a Bluetooth standard employed on the Bluetooth device with which you want to communicate is not the same version as the one employed on your computer, the communication speed becomes slower. Why can't I use the services supported by the connected Bluetooth device? Connection is only possible for services also supported by the computer with the Bluetooth function. For more details, search Windows Help and Support for Bluetooth information. Troubleshooting > Bluetooth Technology n143 N Can I use a device with Bluetooth technology on airplanes? With Bluetooth technology, your computer transmits a radio frequency of 2.4 GHz. Sensitive locations, such as hospitals and airplanes, may have restrictions on use of Bluetooth devices to avoid radio interference. Check with facility staff to see if use of the Bluetooth function on the computer is permitted. Why can't I use the Bluetooth function when I log onto my computer as a user with a standard user account? The Bluetooth function may not be available to a user with a standard user account on your computer. Log onto the computer as a user with administrative rights. Why can't I use the Bluetooth devices when I switch users? If you switch users without logging off your system, the Bluetooth devices will not work. Be sure to log off before switching users. To log off your system, click Start, the arrow next to the Shut down button, and Log off. Why can't I exchange business card data with a mobile phone? The business card exchange function is not supported. Troubleshooting > Bluetooth Technology n144 N What should I do if I do not hear sound from my headphones or audio/video controller? Check whether your headphones or audio/video controller supports the SCMS-T content protection. If not, you need to change the SCMS-T settings to connect the device using the Advanced Audio Distribution Profile (A2DP). To change the SCMS-T settings, follow these steps: . Some VAIO models detect support of the SCMS-T content protection on a destination device for automatic reconfiguration of the SCMS-T settings. On such models, SCMS-T Settings in step 3 is not displayed because there is no need to manually change the settings. 1 Click Start and Devices and Printers. 2 Right-click the icon for the device that you want to connect using the A2DP and select Control. 3 Click SCMS-T Settings. 4 Click No when the Connect to a device only if it supports SCMS-T content protection message appears. What should I do if the Bluetooth icon is not displayed on the taskbar? . Make sure that the switch next to Bluetooth is set to On in the VAIO Smart Network window. . To display the Bluetooth icon on the taskbar, follow these steps: 1 Click Start and Devices and Printers. 2 Right-click the Bluetooth device icon and click Bluetooth settings. 3 Click the Options tab and select the Show the Bluetooth icon in the notification area check box. Troubleshooting > Optical Discs n145 N Optical Discs What should I do if my external optical disc drive does not work properly? Make sure that your external optical disc drive is connected to an AC power source and the USB port on your computer. If it is not connected, the external optical disc drive may not work properly. Troubleshooting > Display n146 N Display Why did my screen go blank? . Your computer screen may go blank if the computer loses power or enters a power saving mode (Sleep or Hibernate). If the computer is in LCD (Video) Sleep mode, press any key to bring the computer back into Normal mode. See Using the Power Saving Modes (page 29) for more information. . Make sure your computer is securely plugged into a power source and turned on and the power indicator light is lit. . If your computer is running on battery power, make sure the battery pack is installed properly and is charged. See Using the Battery Pack (page 21) for more information. . If the display output is directed to the external display, press the Fn+F7 keys. See Combinations and Functions with the Fn Key (page 35) for more information. Troubleshooting > Display n147 N What should I do if I do not see proper images or videos? . Be sure to select True Color (32 bit) for the display colors before using video/image software or starting DVD playback. Selecting any other option may prevent such software from displaying images successfully. To change the display colors, follow these steps: 1 Right-click on the desktop and select Screen resolution. 2 Click Advanced settings. 3 Click the Monitor tab. 4 Select True Color (32 bit) under Colors. . Do not change the display resolution or colors while using video/image software or playing DVDs, as it may cause unsuccessful playback/display or unstable system operations. Additionally, it is recommended you disable your screen saver before starting DVD playback. If the screen saver is enabled, it may be activated during DVD playback and prevent the playback from running successfully. Some screen savers have been found to even change the d...
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