Recent content by JohnManderbach

  1. JohnManderbach

    Automated Fixtures VL1100 maintenance issues

    Hey all, I have a bunch of VL1100's about 6 years old and they have repeated problems with the edge mechanism. The lens assembly seems to get sticky and the motor can't move it all the way in one direction. I thought maybe some simple graphite lube might help but the mechanisms seem to come...
  2. JohnManderbach

    How to tell if worklight circuit is dimmed

    I hate to break in on your conversation but this Genie should be replaced if it can't be fixed. Is it very old? We use 2 Genie brand single man lifts almost every day. We have them serviced and certified every year. It's always the same technician and he has fixed or replaced the outrigger...
  3. JohnManderbach

    mounting a stage light under a platform

    Robyn, does this help? Here is a 50° Source 4 (575w) on a base under a 3' tall platform. I burned the unit at full for 15 minutes and found that it warmed the plywood surface somewhat but not nearly to a dangerous level. Note that this only has 1' of air between the lens and the plywood...
  4. JohnManderbach

    mounting a stage light under a platform

    Robyn, I'm not sure I understand the situation but I'll chime in anyway. Do you need to attach the units to the underside of the platform? Can you put them on floor plates? If you have to be right under the platform then I would avoid any incandescent light. Do you have any LED's that would...
  5. JohnManderbach

    Control/Dimming Temporary House Light control during renovation

    Thanks everyone for the input! You've given me some great ideas. Here's what's going to happen. At the close of the season the entire balcony (and the light booth) is being demolished right down to the steel trusses. I have 2 days to dismantle all the control equipment, pull back the wiring...
  6. JohnManderbach

    Control/Dimming Temporary House Light control during renovation

    Starting in May my lighting booths are undergoing a total renovation for a few months. In those booths are my lighting system network rack and the Unison System control. All of it needs to be disconnected and removed to make way for the demo phase. I am prepared to do this and since I don't...
  7. JohnManderbach

    Obsession II light board

    Jim, I programmed an Obsession 1500 for years. It was serial number 066 and was retired in 2008. It had a great run. The Obsession 2 added moving light functions but operated the same. It was rendered obsolete by better moving light consoles but ran many Broadway shows in it's day. It's...
  8. JohnManderbach

    Control/Dimming ETC D20 Dimmer Failure

    I came across this thread recently while looking for new information. I have 16 year old Sensor Dimmers and in spite of Mr. Terry's posts the SSR cubes fail, several a season. This does not pose a real problem because our dimmers are heavily used and yearly maintenance is in the budget. I...