I too have a similar problem with one of these that i purchased used on ebay a while back, i have wasted hours and hours trying to get it to work, i put a meter on the analogue output and it seems to work fine, but no dmx output, the only way i have ever gotten anything out of it was once when i had 3 fixtures plugged into it, with the other 2 fixtures switched to auto mode, and one on dmx001, i managed to get a response from that 1 fixture, it seemed to do everything, except there was a lot of interference, colors flashing up etc. but that is the only way it ever worked, i have swapped pins, metered leads, tried absolutely everything i can think of, and now im at the point of looking for another controller. Its driving me nuts.