What if the electronic scale cannot be charged properly?

The electronic scale can't be charged, don't know what's going on? Today Xiaobian and everyone share the reasons why the electronic scale can not be charged and the repair method:

First, determine the battery life and length, to see if it has been aging can not be used.

2. Check if there is voltage on the AC power supply, check if there is any problem with the power socket, or if the power cord is damaged.

Third, the electronic scale will have a low-voltage alarm light when there is no electricity. If there are multiple alarms, it is likely to be caused by serious power shortage. I have to change my battery.

Fourth, the fuse burned out, first use the digital 10,000 to check, use the 2K file of the table to test the two feet of the power cord, the multimeter shows 500 or about 1.100 to indicate that the transformer is normal, if there is no resistance, the fuse may burn.

5. Exclusion, the transformer is broken, and the transformer is tested again. If the transformer fuse is normal, the transformer AC output is measured, 9V is normal, and the rectifier voltage regulator circuit on the circuit is faulty.

Tips: In the case of not using the electronic scale for a long time, the battery must be charged once every 3 months.