[Kenwood] TS 120s IF Blow-by

[Jimmy Hill]

Good evening,

I have a TS-120s as my primary rig. It seems as though it has gradually
developed some IF blow-by. It is not too bad yet, but it can be a bit
annoying sometimes.

Has anyone else experienced this problem? My instinct tells me to loosen
and retighten the board mounting screws. I may be wrong, but I have a
feeling this is due to some oxidation between the screws and the board.
Does this seem logical?

Thanks.
73,
Jimmy,  W9JDH