Has anyone else encountered this? The headphone minijack at the rear of the camera has worked loose and I can no longer monitor sound with headphones. Looks like I need to find a service centre in the UK for a repair.

I had that problem last year. I had a local service technician replace the socket.

I mentioned elsewhere re the Z7 I just bought , and found this issue .

I downloaded the service manual , stripped the camera down , and fixed it myself .

Took me a couple of hours and was an easy enough job ,