Start Up i5601E Display When powered-up, the i5601E Digital Display will initially display an introductory screen showing the software revision level. It will then display one of the following four screens: These screens show all of the key engine data and can be accessed by pushing a single button, also called a “softkey.” The right-most softkey allows the contrast and brightness to be set (see illustration below). Electronic Control System: Operation Manual for BY Series Engines with Unlimited Controls Page © Yanmar 2008