Common problems of LED dot matrix screen
If not the local situation, you should consider is the program for you, such as your programming on screen when scanning frames enough will result in large output microcontroller, solid have you the situation.
Hello, if you add the previous program, see what happens. If someone else has taken apart, if the hardware is out of order, there is no place short circuit or circuit breaker, should be in the local LED light is not bright, or cause fixed place bright, will be part of the problem.
The main sources of static electricity that affect the circuit are the human body, plastic products and related equipment and instruments, of which the static power supply from the environment has the following items:1) objects and materials2) floor, desks and chairs3) work clothes, packing containers4) paint or wax surfaces, organic and fiberglass materials.5) cement floors, paint or waxed floors, plastic floor tiles or floor leather.6) chemical fiber work clothes, non conductive working shoes, cleaning cotton work clothes.7) plastic, packing boxes, boxes, packages, plates, foam pads. Sudden failure and potential failure.
