COMM lost way to many times

[Al Skierkiewicz]

Bruce,
I know that this doesn't help you at this point but there doesn't seem to be any strain relief on the power plug for the radio. The barrel connector depends on the "spring force" of the outside contact to hold everything in place. I highly recommend using an adhesive backed wire tie point on the top of the radio. Loop the power wire up to the tie point and then secure with a a small wire tie. This small step keeps the connector from bouncing around and prevents pullout. Tape over the connector to the radio body also works. The antennas for this radio are on the sides of the radio, inside the vents. It doesn't help to have the stainless pneumatic tanks on that side of the radio but shouldn't be a big problem.
There is also the possibility that severe vibration has caused the power plug to pull out of the circuit board. This is easily repaired if the circuit board has not been damaged. The connector is a part of the circuit board that a good hit on the connector could cause a crack in the board. This has the same effect as broken wires. It may work most of the time, but vibration will make it lose the power.
Tinning wires is not recommended for Weidmuller terminals. They depend on the deformation of the strands to give maximum surface area for current to flow. With tinned wire, only the extreme outside surface of the wire touches the contact producing a connection equivalent to a #36 or smaller wire.