ATMA SPHERE SCHEMATIC for a UV-1 M/M.......

I just paid Atma Sphere 2000.00 to repair a MP-1 .....I'm not asking for anything but a schematic.....It's not like I'm a bad customer.....My entire Atma Spheresystem is for sale.....It will be listed on Audiogon..........The best way to fix the problem is get rid of it.....Then I don't need a schematic or any service.......Problem solved.......Will

Very understandable. Not all manufacturers will go to the trouble and cost of producing user engineering schematics and maintenance manuals. In fact very few do. ATC have sent me specific circuit diagrams and board layouts (two separate pieces of info about the same circuit board) in the past. ATC don’t have a problem with this because they are an engineering driven outfit that expects and anticipates that professional users will need to sometimes make onsite repairs on damaged gear (misuse being a common occurrence in a professional facility that is leased by various producers and musicians regularly).

The cost of proper professional documentation (engineering diagrams) and revision tracking is not surprisingly very costly and it is often hard to justify in a boutique market. In a boutique market, personal notes and hand written schematics are more than sufficient for a small manufacturer to produce great quality gear. Unfortunately this is not suitable fir dissemination to repair technicians....

Is the goal to be able to add phono as a source? Rather than operate on the device yourself, see if Atmasphere can do it for you. Or maybe just add an external phono pre-amp?

Would either of those work for you?

In general, though some may be equipped to do so in some cases,  I think it’s not reasonable to expect a vendor to provide info needed to make mods to a device. There is no way for the vendor to assure good results cost effectively.

Why would the vendor care??  I am trying to put in the stock phono circuit, so the pre-amp will be like the factory model.....I don't want to do anything else.....I phono modification is simple, but I would like it like the factory model........I could send it in to Ralph and pay 500.00 or more to have it done, but the UV-1 isn't worth that much , so I was going to do it myself........(I have build , designed, and modified hundreds of these ).....I will get rid of every piece of Atma Sphere equipment I have as soon as I can find a buyer....

just so I understand you have the Atmas pre-amp without a phono section? How is that? That model is supposed to have the phono section based on teh docs online.   Is teh phono section you want to install from Atmasphere or somewhere else?