Sony PCG-R505GL - Manual (Page 175)

Troubleshooting DVDs and CDs
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❑ If you see video but cannot hear audio, follow these steps:
❑ Make sure your optical drive does not have the mute setting enabled.
❑ Check the volume setting in the audio mixer.
❑ If you are using external speakers, check the volume settings, and then
check the connections between your external speakers and the
computer.
❑ Click Start on the Windows® taskbar, and click Control Panel,
Performance and Maintenance, and System. Select the Hardware
tab, and click Device Manager. Make sure the correct driver software is
properly installed.
❑ Do not use adhesive labels to identify the CD. The label may come off while
the disc is in use in the optical drive and cause the drive to malfunction.
❑ If a region code warning appears when you try to use your optical drive, it
may be that the DVD you are trying to play is incompatible with the optical
drive. Verify the region code listed on the DVD package.
❑ Condensation may cause the computer to malfunction. If this occurs, do not
use it for at least one hour.
❑ Make sure the digital CD audio is enabled for your optical drive. Follow
these steps:
1 Click Start on the Windows® taskbar, and click Control Panel,
Performance and Maintenance, and System. The System Properties
window appears.
2 Select the Hardware tab, and then click Device Manager. The Device
Manager window appears.
3 Double-click the listed DVD/CD-ROM drive. The Properties window
appears.
4 Click the Properties tab, and click to select the Enable digital CD
audio for this CD-ROM device check box.
Why did the computer screen (LCD) go blank?
❑ Your computer screen may go blank if the computer has lost power or is in a
power saving mode (Standby or Hibernate).
❑ Make sure the computer is plugged into a power source and is on. The
power indicator on the computer will be on if the computer is on.