The electronic scale is one of the necessary cash register accessories for many supermarkets and fruit and vegetable shops. The operation is convenient and the efficiency is doubled. The cashier only needs to put the fruit purchased by the customer on the electronic scale and select the corresponding classification. The premise is that the unit price of each product is set before use, and the customer can directly calculate the fruit purchase. The price is up. After subtracting the cashier's weighing and taking the computer to calculate the price, the cashier electronic scale is favored by supermarkets and fruit and vegetable shops.
The electronic scale of the cash register can't be turned on. What should I do? Xiaobian talked about several reasons for this failure today.
(1) The relevant parts of the power supply include the plug power cord, switch, and insurance system, which cannot be analyzed. When the electronic scale of the cash register cannot be opened, the above part is mainly a small problem.
(2) If the power cord of the bar code scale is broken, the switch is broken, or the fuse is broken, as long as you know a little electrician, you can replace these bar code scale accessories by yourself. If the bar code scale is still unable to open the machine after inspection, then It is possible that the power strip of the bar code scale is burned. In this case, only a new bar code scale power board can be replaced.
(3) Please first determine the electronic counting scale, not the fuse, power switch, power cord and digital electronic scale voltage switch.
(4) Check the transformer of the high-precision electronic scale for AC110/220 input and AC18V output.
(5) Remove the battery from the electronic pricing scale and turn it on with AC power to find out whether the waterproof electronic scale is caused by insufficient battery voltage.
(To measure the battery voltage, it should be higher than 6V. Please charge when it is lower. If it is lower than 5.5V, please replace the battery when there is no power soon after charging.)
(6) Check the battery voltage first, which is higher than 6V. If it is lower than 5.7V, please charge it. If it is lower than 4.8V, and if there is no power after charging, please replace the battery.
Use the three-meter to go to the DCV gear 20V position, the red rod of the meter is placed at the battery end position, and the black rod is placed at the battery-end position. The battery voltage is displayed. Usually, it is judged whether the quality of the battery is saturated by the charge, and the speed of the discharge, that is, when the charging circuit is normal, the battery cannot be saturated (the electric charge cannot be charged). Or you need to replace the electronic scale battery when you have no electricity after less than a few minutes. (In general, after charging is saturated, it can be used for more than 100 hours, for example, without backlighting).
(7) If the fuse is open, please replace it if it is open.
Method: How to measure the fuse First turn the meter to the ? position, there is a FUSE1 position (that is, the fuse) on the AD board.
Put the red rod and black stick of the meter to the two ends. If the meter sounds, it means OK and does not need to be replaced. If the meter does not emit a sound, replace the fuse.
(8) Whether the switch is defective.
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