According to ICOMĪmerica S/N after 3550 (if URL fails which I think it does or ICOM has (re-)installing a few anti Electro Static Discharge components. Roomers are that ICOM says that it is no longer a problem after FM or digital, just made it easier to see. It all seems to relate to one single component: IC151, µPC1678G, P/Nĩ1213606, and overheating. I already knew of the Dead TX issue of the IC-746PRO and it seemed It was RF feedback but why now? I had not rearranged my shack or cabling. Transmitted 100% carrier type signals, e.g. Started to drop in power, rapid drops though, and only visible when I Dead TX (IC151 RF Unit)Īfter having been the owner of an IC-746PRO for a good six months (August Please note that I no longer own an ICOM IC-746PRO and I have not investigated any other problems than the three problems described below. I have experienced all three generic faults: IC151 dead, ALC Jumping and LCD power supply failure. If you are the owner of either the ICOM IC-746PRO or the IC-7400 you may already have experienced the issues. The purpose of this web page is to try to investigate some of the issues around ICOM IC-746PRO reported by many radio amateurs through out the world and unfortunately not properly taken care of by ICOM.
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