As the pcb suppliers, we suggest to clean up the dust on the PCB prototype and carry out annual maintenance regularly.

PCB in the electrolytic capacitor capacity for sampling. If the capacity of the electrolytic capacitor is less than 20% of the nominal capacity, the electrolytic capacitor should be replaced. Generally, the life of the electrolytic capacitor should be replaced in ten years, so as to ensure the working performance of the our high quality PCB.

For the high power device is coated with thermal grease, should check the thermal grease not dry. For the dry solid should be dried after removal of thermal grease, coated with thermal grease new. In order to prevent high power because the heat is not good and burn PCB devices in circuit board.