My first time on @pinsiders. I have Mary Shelly's Frankenstein pinball table and the Dot Matrix Display has gone off ! I managed to get a manual and the main connection to the DMD seems to be JN7 which has four connections 2 came from the Power Supply Board and 2 came from Bridge Rectifier 3 where there was no power at all. On checking it was found that the fuse had gone supplying the BR3 The JN7 was unplugged and loose connection found from Transformer to BR3 giving 14.7V AC and 18V DC out to JN7. Mains was switched off and JN7 was plugged in again, mains back on and Fuse to BR3 blew again. Just thought I would also mention that as I wanted to know what could cause the 8A fuse to blow I decided to disconnect the ribbon cable from the DMD to the DCB and the connector to the DCB from PSB so the only cable going to the DMD was JN7 Can anyone confirm that 18V DC is the correct voltage to go to JN7 and what may have caused the fuse to go. Any help would be much appreciated !