[ICOM] 756 Pro III Problem

[Frank N. Haas]

On two occasions roughly one year apart, my 756ProII would shut down 
completely and restart when I attempted to key the transmitter on CW or any 
other mode.

I traced the problem to the black and red high current power leads that 
screw onto a circuit board on the top side of the radio. The fix was 
simple: Unscrew the bolt holding the red and the bolt holding the black 
wires. Then screw them both back in.

A close visual inspection of the terminals for both wires showed no obvious 
signs of corrosion. The solder that secures the hardware to the circuit 
board shows no signs of cracking or any other physical problem.

Yet, unscrewing these leads and screwing them back in place solves the 
problem usually for at least a year. I suspect the ProIII is laid out the 
same way. Perhaps the most recently described problem is caused by similar 
circumstances.

73,

Frank N. Haas KB4T
Florida