用于集贸市场的电子计价秤,由于受使用条件的限制,难免出现各种故障。在电子计价秤的各电路连接正常,电子元件无损坏情况下,电子计价秤的按键在开机状态下全部失灵。通过经验总结有以下两个方面原因:一是由于电子计价秤电瓶过饱和充电,造成通过按键电流过大,形成按键失灵。只要将充电电瓶适当放电即 Electronic pricing for the bazaars scale, due to restrictions on the use of conditions, it is inevitable that a variety of failures. In the electronic pricing scale of the circuit connection is normal, no damage to electronic components, electronic pricing scale button in the boot state all failed. Summarized by the experience of the following two reasons: First, due to the electronic pricing scale battery over-saturated charge, resulting in excessive current through the key, the formation of key failure. Just discharge the battery properly