Year, I understand, that no such problem can be seen visually, but I saw a video with FT897, where they had a similar problem with saving settings and the EEPROM had bad connections to the flatbed and one resistor was missing. And I also wanted to check the degree of pollution inside, since the table under the superstructure with TRX is also used for tinkering, and here and there some of the wire from the braiding of the coax flies off to who knows where 🙂 .
I won't change it, because I don't have a micro soldering iron or software for that.
I know there is also a service menu, except for the classical one.
I've been in it before, but of course I didn't change anything there.
I didn't want to throw away the factory settings.
Leo
OM2ALB