Call Sony for the nearest authorized servicer. They will have the
training and service manuals on hand for a model this new. Then check
references on those names they give you.

Unless you know of a good independent, non-manufacture affiliated,
repair shop (by references or past experience), it is usually best to
take a newer item to an authorized servicer.

Without a complete internal diagnosis, there is no way to know if it is
worth fixing.

FYI most of the big box stores will take stuff in for repair, but they
truck the items off, pay $8.00 for most of the 'techs' they have
employed. They are in the business to sell you something new, rather
than fix it.