It took me about 2-3 months to get my Sony SCD-777ES SACD player refunded from Sony. You have two options with Sony, if the item is a current item, they will replace it with a new one free of charge, option 2 is if the item is no longer in production, they will give you the replacement value or better yet, ask for another model that is current and then sell it on Agon for more then the replacement value of the old unit. That is what I did anyway.
You have to keep on the Sony service center at least every week and ask what your options and how long it will take. Keep up the faith, Sony will do the right thing even if it takes some effort on your part.
Happy Listening.