Flexible FFC circuit board, also known as "soft board", is a printed circuit made of flexible insulating substrate. Flexible FFC wiring circuit provides excellent electrical performance, can meet the design needs of smaller and higher density installation, and also helps to reduce the assembly process and enhance reliability. After we have assembled the flexible FFC wiring board, we need to carefully check whether there is any error in the circuit wiring before we need to run it. How to check and judge? Let's share with you.
1. Power on to observe the circuit board. This point means that we need to adjust the value of the required power supply voltage and make sure that there is no short circuit at the power end of the PCB before connecting the corresponding power supply to the PCB circuit.
2. Before power on test run, it is necessary to carefully check whether there is any error in PCB circuit wiring. Check the PCB schematic diagram step by step according to a certain sequence.
3. In addition, it can also be judged by the index of the test instrument. After the static and dynamic debugging of flexible FFC circuit board is normal, it is necessary to test the circuit board and record the relevant test data, analyze the test data, and finally make the test conclusion.