[R-390] Removing RF Deck -R390

[Robert Nickels]

I've read over the years about doing this but never had the need until 
now,   so would appreciate pointers to any info about removing the RF 
deck from the R-390 (not "A").

The mechanicals are in good shape, but I've isolated a static-like noise 
to the 3rd mixer so it's got to come out.

If it is the same procedure as for the R-390A,  then I can refer to 
information in the "Pearls" and elsewhere in addition to the manual.

Thanks and 73,
Bob W9RAN