I have a couple of issues that I hope someone else out there that bought an R7 All in One controller can help me solve. Since we have no documentation or web site to refer back to this forum is my main hope.
(1) I have an unconnected wire in the control box and I cannot figure out where it should go. It connects to a 2-pin connector on the MKS DLC board at a point that online sites label as TTL. The two wires are yellow and blue and it is the blue one that is loose. I probably disconnectied this wire while working the issue that leads to my second problem.
(2) This is a big one. The execution of the start-up process deteriorated over a span of 2-3 weeks to the point that the machine is now useless. Every attempt to start the system fails and what appears on the monitor is rarely the same from one attempt to the next. Occasionally (about 5% of the time) I get as far as a running bCNC but no apparent presence of the operating system. Without the OS there is no way to input a job, no way to search files, no way to exit gracefully. . . .
My guess was that it was the Rpi itself that had failed. I consulted with my unpaid guru (youngest son makes his living in the computer biz and has extensive experience with Raspberry Pi) and he agreed, so he sent me another Rpi of the exact same version and I installed it: absolutely no change. Now I’m thinking it is the micro-SD card that is corrupted so am working on downloading the requisite software and files to build a new one.
My question is: has anyone else using the All in One controller experienced a similar problem, and if so, can you give me any useful hints?