kikomachado

Hi everyone, I´m new in this forum and i have a problem that i thing you can help. I have an AVC 781 that are blocked and when i search on internet for a reset i found an images and manual how to reset on board but in my hardware i don´t have the jumper to do this. Can anyone help with this? Thank you! Model: AVC781Z REV0.4A 2006/1/24