Dell 4500S, 7M291 manual No sound from headphones, If the screen is blank

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No sound from headphones

CHECK THE HEADPHONE CABLE CONNECTION — Ensure that the headphone cable is securely inserted into the headphone connector (see page 60).

DISABLE DIGITAL MODE — Your headphones do not work if the CD drive is operating in digital mode. To disable digital mode:

1 Click Control Panel, and then double-click Sounds and Audio Devices.

2 Click the Hardware tab.

3 Double-click the name of your CD drive. 4 Click the Properties tab.

5 Uncheck the Enable digital CD audio for this CD-ROM device box.

ADJUST THE WINDOWS VOLUME CONTROL — 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.

HINT: See the monitor documentation for troubleshooting procedures.

If the screen is blank

CHECK THE MONITOR POWER LIGHT — 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.

CHECK THE MONITOR CABLE CONNECTION — Check the connector for bent or broken pins. (It is normal for monitor cable connectors to have missing pins.) Ensure that the video cable is connected as shown on the Start Here setup diagram for your computer.

TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

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Solving Problems