How to maintenance of led desk lamp filled in no electricity
It seems is the switching power supply, circuit board above and have a look. You understand the welding and the multimeter test? If you don't send repair shop
Wire or charging head problem, check the line.I hope you can help.
Possible battery charging circuit is broken, seeing you is what buck circuit, if it is a transformer or resistance and capacitance step-down circuit is relatively simple, maintenance is a electronic components, slightly understand electronic knowledge can repair myself. If it is switch power supply is trouble to repair, to professional maintenance technology to repair.
