Dell Dimension 8250 Dell Dimension 8250 Owner's Manual - Page 56

www.dell.com | support.dell.com R U N T H E S P E A K E R D I A G N O S T I C S - Some speaker systems have selfdiagnostics. See the speaker documentation for diagnostics instructions. RE I N S T A L L T H E A U D I O ( S O U N D ) D R I V E R - See page 66. C H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S - See page 70. No sound from headphones C H E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N - Ensure that the headphone cable is securely inserted into the headphone connector (see page 76). A D J U S T T H E W I N D O W S V O L U M E C O N T R O L - Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted. D I S A B L E D I GI T A L M OD E - Your headphones do not work if the CD drive is operating in digital mode. To disable digital mode: 1 Click the Start button, click Control Panel, and then click Sounds, Speech, and Audio Devices. 2 Click Sounds and Audio Devices. 3 Click the Hardware tab. 4 Double-click the name of your CD drive. 5 Click the Properties tab. 6 Uncheck the Enable digital CD audio for this CD-ROM device box. HINT: See the monitor documentation for troubleshooting procedures. Video and Monitor Problems If the screen is blank C H E C K T H E M O N I T O R P O W E R L I G H T - If the power light is off, firmly press the button to ensure that the monitor is turned on. If the power light is lit or blinking, the monitor has power. If the power light is blinking, press a key on the keyboard or move the mouse. 56 So l vi n g Pro b l em s