I'm now accepting repair work, message me via this FB page: profile.php?... Great write-up on common issues with the icom IC-7400, IC-746 & IC-746PRO: www.rudius.net/oz2m/ic746pro/...
I bricked one of my Yaesu FTM-400XDs... Maybe I'll send it your way... Also, I'm not RU-vid smart, but I instantly looked up that digital microscope so there might be "affiliate link" potential. Good stuff dude.