Sony is in the business of selling, not fixing
and always has been.

That's not altogether correct. Sony used to have a customer service center
outside Washington. I took an item or two there for repair.

In one case (a dictating machine) Sony botched the diagnosis and told me the
machine couldn't be fixed. I buttonholed the manager, explained why the
diagnosis did not fit the symptoms, and they fixed it -- at no charge. (Yes,
that's rather surprising for any company.)