There are many factors in the situation that the bar code scale and the cash register can not be opened. Here, I will share a few typical common situations and share with you. I hope that I can give some good inspiration to the users who use the bar code scale and the cash register. The same problem is better if you can refer to your own solution.
Bar code scales and cash register scales in electronic scales are relatively sophisticated instruments. From a large category, a bar code scale is mainly composed of the following key parts: power board, main board, printer, display, in general, it is more likely to fail. The place is the power supply and the main board, because these two areas are more prone to heat when working, and at the same time attract a lot of cockroaches to come to camp, which is easy to damage over time, followed by the printer's print head, because of the vulnerable parts, bar code scales and cash register scales are frequently used. High and short life.
The topic, if you can not open the bar code scale, cash register scale will be caused by what? Start with the power board:
1. Consider whether the fuse of the electronic scale is blown. The general fuse is at the bottom of the electronic bar code scale. It is tied with the power cord. You can use a screwdriver to unscrew it. If the fuse is broken, change it. A fuse with the same number can be solved.
2. Observe whether the power cord is peeling or broken and there are no traces of mouse biting. If you need to change one, look at the place where the plug is plugged in. If there is electricity, sometimes it will not be used. .
3. After excluding the above two items, it is estimated that it is an internal problem of the bar code electronic scale. It may be that the switch is broken (possibility is relatively small). Turn on the machine switch and see if there is any small sound coming out. If there is any sign of change in the scale when the power is turned on, it means that the power supply may be no problem. Then it is good to consider whether it is a problem with the motherboard or the monitor. It is.
4. If there is a normal audible alarm when the power is turned on, it means that the motherboard has no problem after starting the self-test. At this time, the possibility of damage to the display is relatively large. Press the paper feed button on the bar code scale or the cash register if there is work, then the motherboard is Good (the bar code scale and the cash register scale have a paper feed button for testing and checking the bar code paper). If it does not respond, the motherboard is also considered.
Excluding the damage of the power supply and the electric wire, if the display or the main board or the power supply board is damaged, only the professional bar code scale maintenance personnel should come to the maintenance. It is recommended that the customer not disassemble by himself, which is dangerous.
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