Repairing industrial electronics starts with a correct diagnosis. Any manufacturer's service center recommends not looking for the causes and immediately replacing the supposedly faulty unit with a new one. With this approach, the repair can become permanent and take much longer, as the cause may not be the unit. Only repair at the component level can get your equipment back up and running faster and extend its life. To this end, the diagnostic process first checks the suspected cause of the failure and the operability of the units, then prevents all weak links in the system and removes the damaged components point by point. In situations when it is impossible to completely start the unit itself and to see all the necessary signals inside the board in the repair process, the close production conditions are reproduced in the laboratory.

Test benches are set up in repair laboratories to test the performance of the units. The availability of test benches in the laboratory optimizes the process at all stages. This sophisticated technological equipment allows the unit to be tested in different modes of operation during the repair and the unit to be tested after the repair. To this end, a series of tests are applied to demonstrate the correct functioning of the technique. In the testing process, the malfunction of the device or its full compliance with the required parameters is determined.