avab dmx

  1. K

    Two Unrelated AVAB DDII Dimmer Questions

    Hi folks.I manage a couple of educational theatres that have AVAB DDII racks- 17 years ago we upgraded these from AVAB240 to DMX 512.At one of these theatres, the 595-SN75157P chip goes out in 1 of 3 rack cards at least every 2-3 months. Any thoughts on the cause, or a protection against...