Once the rig was assembled, it worked at first attempt!. Is the IC-756PROIII really 8001 better than the PROII Well attempt to shed some light on that issue here. Once PCB is back to the rig, it looks like this: Once all the carbon has been removed, checking the Service Manual (available online in a number of WEBs), I redid all the missing traces and added a couple components (a coil and a capacitor) which were damaged: The burned PCB is highly conductive, so it should be removed.
Once cleaned with alcohol damage seems a bit nicer: Here you have some pictures of the damaged area around ACC1 in the MAIN UNIT PCB. Unit came in original box, with manual, hand mic and cable.
The first picture shows the 2 mitsubishi motors on top and 3 of the. I got it with a known fault, consisting of powering up always on TX due to some damage in the ACC1 connector area. a mitsubishi MP28GA 9Y18 12VDC in the internal antenna tuner of an Icom 756pro. This page is devoted to the repair of my Icom IC-756 PRO (first model). EB5AGV's Workbench: Icom IC-756 PRO repair Returning a nice transceiver to life