I bought a 2nd hand H3000SE – used it for a few months then bought the 5 eprom “everything upgrade kit”. I carefully installed the new eproms and now the unit only shows the top line of blank LED lights. I’ve tried the “hold down function key reboot”… no luck. I’ve re-set the original eproms – no luck… Anyone have any experience with this?
Also check out that the power harness connection is good to the main board. This is a common problem disturbing an old piece of gear that worked fine before opening. Happened to me too as a matter of fact. That, and don’t put the the EPROMs in backwards 🙁