Da-capo issue (John W?)

Hi everyone. I don't have a DaCapo, but I do have a Cordinal with the 22 Bit filter. Does anyone on here know someone that can reliably troubleshoot / repair / recap these devices? I have invested in a couple of repairs that haven't worked out.
 
Oooo. Brand new HDCD filters courtesy of apex hi-fi. He also has a prototype USB input card working and is just finishing off before selling them as well. The usb cards utilise usb async and the da-capo click lock system to give it best data it can. He has also created a full replacement DAC section to allow repair where it’s failed under potted section etc.

https://apexhifi.co.uk/product/pink-triangle-dacapo-hdcd-filter-module/