No Audio; Contacting Compro Technical Support - COMPRO COMPROFM Manual

reinstall the TV card driver. This usually solves the
problem. If the problem persists, try moving the PCI TV
Tuner card to another PCI slot.
After you can successfully use ComproFM, install the
other PCI devices one at a time. Restart your system and
test ComproPVR after installing each card.
Pay attention to the IRQ numbers of networking, sound,
and SCSI cards. They should not share an IRQ with the
VideoMate TV tuner card.

No Audio

Check that the sound is not muted or low volume in the
Windows Volume Control dialog. (Double-click on the
speaker icon in the system tray.)
Verify that the external audio patch cable is connected
between the Audio-Out of TV tuner card and Line IN of
your sound card if you select the audio source to "Line-In".
Or the inner audio patch cable is connected between the
inner Audio-Out of TV tuner card and AUX of your sound
card if you select the audio source to "AUX". You can
verify the connection refer to the Hardware Installation.

Contacting Compro Technical Support

Before you submit an email for support, you should check
our FAQs. Please see
When contacting Compro for technical support, please
use the Compro support request form and provide as
much of the requested information as possible. Please
write the details in order to determine the problem. And
also provide the product serial number (15 or 19 digits
Troubleshooting
Note
http://www.comprousa.com/support
24