<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">It sounds like power supplies in the affected luminaires have failed entirely.<div><br></div><div>With this failure rate it makes sense to considered integrity of sinusoidal wave forms in the AC supply. </div><div><br></div><div>Industrial refrigeration units, AC units, generate AC waveform distortions that can impact longevity of LED drivers and power supplies. A transformer for lighting supply and another for sound supply (with isolated-ground) are always preferable.<br><br><div dir="ltr"><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><span style="background-color: rgba(255, 255, 255, 0);">"A society grows great when old people plant trees whose shade they know they shall never sit in." - Greek proverb</span></div></div><div dir="ltr"><br><blockquote type="cite">On Jul 9, 2021, at 09:18, Steven Mclean via Stagecraft <stagecraft@theatrical.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div><br></div><div><div class="gmail_quote"><div dir="ltr"><div>Hello to the wisdom of the list:</div><div>The startup theatre that I am working with bought an inventory of ETC Color Source SPOT Deep Blue & Color Source PAR Deep Blue units about a year and a half ago. Just as we were beginning to get some use out of them, the theatre was shut down due to Covid. The producer pivoted last December & opened as a sort of nightclub with limited seating & we began using the lights again. All seemed to be going well, but one-by one some of the units became unresponsive. About a month ago, I did an entire survey of the rig (I did not buy the units & have very limited experience with these type of LED units). Anyway, I discovered that roughly 1/3 of the SPOT & 1 of the 20 PAR units were malfunctioning. </div><div><br></div><div>The nature of the failure is that when power is applied, the units fail to power up. Fans do not come on & the small screen fails to illuminate. All units DO pass along power & DMX to units downstream in the daisy-chain.</div><div><br></div><div>There seems to be no commonality concerning the placement in the digital or power daisy-chain. Some were at the end of one or the other; some were mid-chain; some were at or towards the beginning.</div><div><br></div><div>Apparently these units are no longer under warranty and ETC/Barbizon has issued me an RMA for the repair. This will require shipping all 13 units to & from Wisconsin (from SW Florida) at an undisclosed cost & a repair of an estimated $500 or more each.</div><div><br></div><div>The producer is understandably concerned.</div><div><br></div><div>My question to the list is: Are there any alternatives, or is the theatre destined to pay roughly 1/2 or more of the replacement cost of the units in order to get them repaired?</div><div><br></div><div><div><br></div>-- <br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Steven J McLean</div><div>515-480-8461<br><a href="mailto:stevenjmclean@gmail.com" target="_blank">stevenjmclean@gmail.com</a></div><div><a href="http://designandtechtheatre.wordpress.com" target="_blank">designandtechtheatre.wordpress.com</a></div></div></div></div></div></div></div>
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