ThumperPaul wrote on 06/10/24 at 11:33:12:Thanks Verslagen. Does the external appearance say anything about the TCI? On the backside of the TDI on the parts bike I bought, it has “pimples” (best way to describe the bumps).
I don't believe so, I think most have them or it's possible some mfg's fill the backside completely.
This is what's known as conformal coating. It's there to prevent any of the components from vibrating and eventually breaking off.