where to attach VHF/UFH to coax adapter?

[zeno]

Use the pair on bottom right that says VHF between them.
If you still get nothing the tuner is probably out. I cant remember
what tuner this uses but the ones in bigger sets had a lot
of cold joint problems. You can also try running the CH 3 adjustment
through its range.

73 Zeno
LFOD !