Thanks for the advice above, I have tried hard reset, hard reset without any input cables attached (apparently this is how to jolt the amp out of protection mode), and also with and without the SD card.
Trevor and Gavin from Guildford Audio popped in and were equally baffled, they have taken the D200 away for further investigation.
Once I have their results I will post here in the (unlikely) event that anyone else has the same problem.
Trevor and Gavin from Guildford Audio popped in and were equally baffled, they have taken the D200 away for further investigation.
Once I have their results I will post here in the (unlikely) event that anyone else has the same problem.
