I’m currently working on the above fixture as per a customer repair in a factory service center. First one I have worked on, but almost 30 years of experience+, easy fixture to work on. http://www.lycian.com/lycian_specsheet_1209_01.pdf
I note as opposed to Lycian’s website that instead of the single ended MSR 575HR lamp currently specified, it’s using a dual ended HMI 575DXS lamp. Is this an earlier version that supported the lamp from only one end of it? http://www.lycian.com/lycian_instructionmanual_1209.pdf
I like the ease of bench focus of the fixture, and even the 1/4" backing out of the lamp housing concept for bench focus due to the dark spot as per manual bench focus. Imagine centering a lamp with a dark spot to find it's center in the beam! That's cool! And if you do not have it.. you need to do work in dialing the lamp back. (I'm putting lock nuts on that adjustment... it is an exploding lamp if someone (below) should be that innept in doing bench focus.
Unfortunately this fixture described as “blowing lamps” had some easily diagnosed problems in terminal connection, or could be an old ballast issue. Could be the lack of nut on on the lens side of the lamp - a ring terminal just floating without attachment (or when I found it floating inside the fixture). Found the spare (or perhaps un-known missing) lamp... floating around in the fixture housing, also found one of two missing nuts (lamp installed & spare) to this second nut floating about in the ballast housing. Seemingly a systemic problem in connecting the lens side of the lamp in putting a knurled knob nut on the end of the dual ended lamp supported from one side.
Literally could not slide out the lamp housing tray until I counter adjusted the lamp against the reflector preventing it from removal. Most likely a crew using it that has read the manual on the fixture... Operator error given a lamp with one end electrically connected... the other end with the wire floating about, and no nut to attach it anywhere near it.
A question, given it’s a low wattage 575w lamp, is a dual ended lamp only supported from one end sufficient support for that HMI lamp? This given the lamp carriage assembly slides out 1/4 for bench focus -good idea, but if that front end cable if not enough in slack... it might be a stress on the lamp?
Other details, most fasteners were corroded and rusted if not missing. The only way to access the dual ended lamp was from the top cover. Given this a mix of (some missing) socket head cap screws and phillips screws (missing) between top cover and rear lamp tray for use in bench focus were gone or in use in the wrong place. Assuming anyone on-site read the manual on how to bench focus it - given the bad bench focus found. Bad situation.
Assuming the lack of bench focus - seriously bad, and missing the lamp's thumb screw knob on the bad lamp to attach ring terminal to the lamp... Possibly know why they are blowing lamps... Not easy to install from the top cover a lamp. One of my assistants also noted that the top cover safety switch had it’s wires cut. Yea, that was in the manual not to do. Email into Lycian in not seeing where they jumped that connection as to short this.
Won’t know until I replace basically all fasteners/re-tap holes, do gate assembly resurfacing, touch up paint, clean lenses & fixture, re-terminate ring terminals, re-surface lamp base, etc. Most screws and nuts on the fixture replaced with stainless steel ones.
Getting the chopper/iris assembly was interesting.... after figuring out that if you un-seat the condenser lens, you can get to this assembly hex screws. Once the gobo slot is out, you still cannot get the chopper/iris assembly out of the fixture short of removing it’s side walls. What a bad design on this part - though I do love it’s chopper assembly mechanics though. They were in better condition than they look - good time for a service call to bring them back to almost new. I had to cut some slots into the bottom of the carriage so as to get the gate assembly out. They were in a non-structural place that should have been there.
TBA the rest of the service call and if a bad ballast.... Won't know until I try the fixes to the obvious problems.
I note as opposed to Lycian’s website that instead of the single ended MSR 575HR lamp currently specified, it’s using a dual ended HMI 575DXS lamp. Is this an earlier version that supported the lamp from only one end of it? http://www.lycian.com/lycian_instructionmanual_1209.pdf
I like the ease of bench focus of the fixture, and even the 1/4" backing out of the lamp housing concept for bench focus due to the dark spot as per manual bench focus. Imagine centering a lamp with a dark spot to find it's center in the beam! That's cool! And if you do not have it.. you need to do work in dialing the lamp back. (I'm putting lock nuts on that adjustment... it is an exploding lamp if someone (below) should be that innept in doing bench focus.
Unfortunately this fixture described as “blowing lamps” had some easily diagnosed problems in terminal connection, or could be an old ballast issue. Could be the lack of nut on on the lens side of the lamp - a ring terminal just floating without attachment (or when I found it floating inside the fixture). Found the spare (or perhaps un-known missing) lamp... floating around in the fixture housing, also found one of two missing nuts (lamp installed & spare) to this second nut floating about in the ballast housing. Seemingly a systemic problem in connecting the lens side of the lamp in putting a knurled knob nut on the end of the dual ended lamp supported from one side.
Literally could not slide out the lamp housing tray until I counter adjusted the lamp against the reflector preventing it from removal. Most likely a crew using it that has read the manual on the fixture... Operator error given a lamp with one end electrically connected... the other end with the wire floating about, and no nut to attach it anywhere near it.
A question, given it’s a low wattage 575w lamp, is a dual ended lamp only supported from one end sufficient support for that HMI lamp? This given the lamp carriage assembly slides out 1/4 for bench focus -good idea, but if that front end cable if not enough in slack... it might be a stress on the lamp?
Other details, most fasteners were corroded and rusted if not missing. The only way to access the dual ended lamp was from the top cover. Given this a mix of (some missing) socket head cap screws and phillips screws (missing) between top cover and rear lamp tray for use in bench focus were gone or in use in the wrong place. Assuming anyone on-site read the manual on how to bench focus it - given the bad bench focus found. Bad situation.
Assuming the lack of bench focus - seriously bad, and missing the lamp's thumb screw knob on the bad lamp to attach ring terminal to the lamp... Possibly know why they are blowing lamps... Not easy to install from the top cover a lamp. One of my assistants also noted that the top cover safety switch had it’s wires cut. Yea, that was in the manual not to do. Email into Lycian in not seeing where they jumped that connection as to short this.
Won’t know until I replace basically all fasteners/re-tap holes, do gate assembly resurfacing, touch up paint, clean lenses & fixture, re-terminate ring terminals, re-surface lamp base, etc. Most screws and nuts on the fixture replaced with stainless steel ones.
Getting the chopper/iris assembly was interesting.... after figuring out that if you un-seat the condenser lens, you can get to this assembly hex screws. Once the gobo slot is out, you still cannot get the chopper/iris assembly out of the fixture short of removing it’s side walls. What a bad design on this part - though I do love it’s chopper assembly mechanics though. They were in better condition than they look - good time for a service call to bring them back to almost new. I had to cut some slots into the bottom of the carriage so as to get the gate assembly out. They were in a non-structural place that should have been there.
TBA the rest of the service call and if a bad ballast.... Won't know until I try the fixes to the obvious problems.
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