mossmanr
Member
Many years ago I stumbled across an old HMA-7500 that was gathering dust in the back of a 'retro' shop but didn't give it much thought. Eventually the shop moved to another part of the city and the owner has given it to me. I tested it out and I got absolutely nothing out of it. Power comes on, lights work but no relay click at all. Since then it's been sitting in the shed for the last 2 years and last night I've decided that I'm going to breathe some life back into it.
DBT tells me there are no shorts, however the protection relay hasn't clicked so there must be an issue in there further on.
So, while I'm removing and testing out the components and taking stock of what I have to order, I got to wondering if anyone has repaired one of these tanks before? I have repaired a few amps now, but haven't touched anything with FET's in it (there's an old Sony sitting here as well) so is there anything I should be wary of? Most posts here deal with the MkII and not the MK1
Rob
DBT tells me there are no shorts, however the protection relay hasn't clicked so there must be an issue in there further on.
So, while I'm removing and testing out the components and taking stock of what I have to order, I got to wondering if anyone has repaired one of these tanks before? I have repaired a few amps now, but haven't touched anything with FET's in it (there's an old Sony sitting here as well) so is there anything I should be wary of? Most posts here deal with the MkII and not the MK1
Rob