Aid 4D probe; identify the probe by using the ID code; switch the 4D generate signal through the electrical relay to make the 4D probe get the job done Usually. 4.2.2 Principal board The main board may be divided into two parts: front-finish of the leading board and back-stop https://martin07f18.blogolize.com/the-5-second-trick-for-dp50rb-login-68974621