1. No test points are reserved for sockets and key signals; <br>2. The test points are not designed properly; <br>3. The distance between the test points is too small
1. The socket and key signal are not reserved for test points;<br>2. The test point is not designed correctly;<br>3. The test point distance is too small
1. No test points are reserved for sockets and key signals;<br>2. The design of test point is wrong;<br>3. The distance between test points is too small<br>