In the production and use of the process, the pcb prototype because of processing errors, improper use and component aging and other factors will be abnormal or even burning phenomenon.

look at the state of components. Get a piece of trouble PCB, the first observation of PCB there is no obvious component damage. Such as electrolytic capacitor and resistor, burn out and burned to power device loss etc.

Printed circuit board has no distortion. Check whether the soldering off, obvious weld; circuit board copper skin have cocked, burnt black. To find fault can be better maintenance.

Hope our suggestions can be helpful. If you need high quality pcb, low cost pcb board etc. Welcome to contact us.