Not as yet, being doing near 12 hours shifts at work so sleeping most of the time when at home, or catching up on laundry and other household chores.
The BFO issue seems to have settled down for some unknown reason, sitting in same position now and not deviating.
Might have a go at it today before getting ready for work...
Had a go at it and finally got in, heaps of screws to remove, including one hidden under a silver "checked" sticker, and one deep inside the D battery compartment.
Will return with findings...
Circuit board is very cluttered and everything jammed up close together, didn't bother taking it out as afraid might not be able to get the screws holding it back in properly. Track circuit very small and couldn't get my meter ends to reliably sit as ends too big for this circuitry. Soldering in general is reasonably neat, unlike some Chinese boards I have seen with solder splashes everywhere this one is pretty good and clean.
Plug ins quite secure, disconnected and reconnected to make sure, gave the board a quick swipe with a tooth brush, very little dust or solder flicks. Gave the boards a little wiggle, all seemed secure in connection.
Put it all back together and up and running, reset as it went to default settings, FM band problem still there, huge noise up to 92MHz now. Don't have time or patience to totally dismantle and run the meter over it, another day maybe?
PS: Tried to post a pic I took of circuit board but attachment would not load onto this page (JPEG).