Dave wrote:

I have a IC-706-mkIIg that I have owned for about three years that has
always worked perfectly.

It recently has started to power itself off for no apparent reason
after being on for a minute or two. ...

I just wondered if anyone had any ideas about this before I send it
into ICOM for service.


What are you using for a power supply? Might be worth having a look with a
volt meter when the rigs shuts down...