That's also a Yamaha, I actually checked both models, typo'd and typo-less just in case. Both are Yamaha, Sony's usually start with STR (for the new ones, don't recall the old model number scheme off the top of my head).

Checkout Yamaha forums (if they have them) or double check the model if you're 100% sure it's a Sony one.

Hope this helps!

- JD