Replace this......
My Engineer said that the unit was good but had been messed about with before.... more so than either known or declared.
Replace that......
Nothing drastic...
But previous so called 'Audio Engineers' replaced items 'to get it by'.
How annoying!
Upgrade this......
Let it all hang out!
After a full study by my Engineer he concluded that I had brought it in at almost precisely the right time for the work to be done. Further use may have ended up causing more damage. Heat being one of the main culprits.
A known problem on these units.
The unit is with my Audio Engineer. He doesn't seem phased by the enormity of the job. Good Man!

Upgrade that......

A full report with recommendations was put forward to which all were successfully carried out.

In the end, the work would take just over five months to complete.

It was a greulling wait! I knew my SX was in good hands and didn't want to push or rush things... but wow.... the SX was missed at home!