The queueing theory applied in the industry is very helpful when it is necessary to detect and eliminate production bottlenecks. There are processes that do not add value to the product, however, they are necessary, such is the case of quality inspection. In the electronics industry, this process is very important. The present study is focused on a company that assembles electronic products, whose final process is the quality inspection for car control centers, where the bottleneck of the assembly line takes place, raising the costs of the resources and workforce due to the long inspection process. The current state of the production line is analyzed, simulations are created, and a new model based on open Jackson networks is proposed, which allows the time and costs reduction in the assembly line. The comparison of the current process against the proposed new model is presented, the reduction of time and costs in the process is demonstrated, solving the initial problem.