tom i am working the same type model you are now . using a paper chart wont help you a lot because the three boards would need to be tested by each one alone, the largest board called the mother board is most popular to go first ,then the long horizonal board is next the small vertical last if you were to send to zareba they could diagnose but cost as much in the end as new one there are two guys that do this typ of work me at cjconway@abbnebraska.com & tom smith fencers mail@fencechargerrepair.com tom is a good old boy and straight any ? email me john