电梯电子板维修经验 去年帮朋友维修了很多张电子板，其中包括门机板、编码板、 I/O 板、主控板、外召通讯板及显示板，略有一点小得，写出来与大家分享下。 -Last year, electronic board repair experience in the elevator to help a friend repair a lot of e-board, including the door panels, encoding board, I/O board, control bo