当钱箱打不开, 可以根据以下条件排除原有
1. 先检查钱箱是否有开锁 , 如果锁上了,可以解锁。
2. 可以检查钱箱的电缆是否有损坏的情况
3.可以检查钱箱的电缆是否有松动,若有松动,可以将电缆拔出 , 再插回去。
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