Yes, it is possible for the Wii console to develop some type of sound card problem, but one thing I would check first is that the red and white audio outputs are hooked up correctly to your TV and also that the cables are undamaged, as it is always possible for them to break, or be chewed by a family pet or something.:)

And if you do not find any visible damage, if possible try another set of A/V cables and that will confirm whether or not it is a cable or console problem.

And if it turns out to be the console, then give a call to Nintendo's 1-800-255-3700 (6 am ~ 7 pm Pacific, everyday) Customer Service number, or use their webform  to contact them, and they can set up the repair process for you.:)

SACHFAM  wrote:

 

I appreciate the quick reply. The sound stopped working mid-game so the cables were plugged in correctly. I double-checked anyway and they were fine. I also bought a new cable (the component cable) and still no sound (but picture is fine). No visible damage and no pets to chew on the cable. Just wondering if sound card problems are common on the Wii and what type of repair price I may be looking at (worst case and best case). Cheers.

Sorry that the new cables didn't correct this, but no, a sound card problem doesn't seem to be that common, as it is rarely asked about here.

And as to the repair price, if your console is under a year old, then it would be still covered by the one year long manufacturing warranty and the repair would be free of charge, but if the warranty has now expired, then it usually runs around $75.

But once you contact Nintendo, one of the service representatives will be able to give you the exact price and you can decide if you want them to go ahead and set up the repair or not.:)