On vertical layout models (XL2420Z, XL2720Z, etc), button 1 is on the top. On horizontal layout buttons (DyAc models, etc), button 1 is on the left. Since there isn't any clear information on how to enter the service/factory menus, in one clear spot, here it is.Ģ) XL2411Z only: hold button #3 and button #5 with the power off, for 5 seconds, then press power while still holding them down. *Now with pictures of AMA low in action*!
