If your IC-706MKIIG will not power up (without even hearing a relay click), check the state of the "HV" line. I have seen a few rigs where the rubber pad under the PLL Unit caused corrosion of the "HV" trace. Apparently, some kind of chemical reaction is taking place with the self-adhesive film between the rubber pad and the circuit board. Maybe it only happens in humid or damp environments. I'm not sure. But I've seen this happen to a few 706's.
NOTE: If you don't have the skills or equipment to work with static-sensitive surface-mount components, please leave it to a qualified technician.
Mike Nadeau - N1EQ
www.n1eq.com
Last updated: December 19, 2007
