What should I do if the electronic scale suddenly cannot open the machine?
1. The relevant part of the power supply includes the plug power cord, switch, and insurance system. It cannot be analyzed. When the bar code scale cannot be turned on, the above part is mainly a small problem.
2. For example, 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 not open, then there is It may be 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 make sure that the electronic counting scale is not caused by the problem of 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. Please take off the electronic pricing scale battery and turn it on with AC power to find out if 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, above 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 on the AD board (that is, the fuse).
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. Is the switch defective?
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