Electronic enterprises [india] supplies the model 504 benchtop/tabletop automated optical inspection [adi] system. It is manufactured by testronics, usa. This system provides high-level accuracy on inspection. It is also cheaper than other systems. This adi system has been modified as per the customer`s inspection requirements by balancing inspection speed with component defect coverage. The resolution can be changed by a simple adjustment according to change of technology. The 500 series aoi systems can store all inspection measurement data, regardless of pass or fail in a microsoft access database, therefore easily accessible through many different software packages such as excel, word, etc. A very large image of the failing component is displayed by the system. The operator can toggle the display between the good image and the failing image. With the help of optional visual basic scripting language the aoi generates the ability to create a fully interactive aoi system.