I had the same issue with my IC-7300. The LA-1K would frequently kick out due to overdrive unless I ran the drive super low. Tried 3 different 7300s, same problem with all.? I understand the 7610 does it too.? Poor ALC design on Icom's part.? ?I finally gave up, sold the 7300 and bought a FT-710.? No more problem.
73
Bob? WB8CAC
Bob WB8CAC