Pieter Vanbrabant Posted February 15, 2022 Share Posted February 15, 2022 Dear Cinematography Forum, I recently took the risk to buy an old 2,5kw HMI with flicker free ballast from a bankruptcy auction. When I start the HMI via the Ballast it does respond but never seems te find the power to fully light the HMI. I'm running the ballast from an 20 amp fuse on a 220v electric circuit. Here is a video to support my explanation. Anyone who has a clue what the problem might be? Thanks in advance, Kind regards, Pieter Link to comment Share on other sites More sharing options...
Premium Member Aapo Lettinen Posted February 15, 2022 Premium Member Share Posted February 15, 2022 did you check the bulb condition Link to comment Share on other sites More sharing options...
Pieter Vanbrabant Posted February 15, 2022 Author Share Posted February 15, 2022 19 minutes ago, aapo lettinen said: did you check the bulb condition It seems to be in good condition, also tried it with a new bulb but still the same outcome. Link to comment Share on other sites More sharing options...
Matthew Parnell Posted February 18, 2022 Share Posted February 18, 2022 That’s a send it in for repair problem by the looks. The ballast is probably 15-20 odd years old, the head even older. great gear, but just time for some TLC. Link to comment Share on other sites More sharing options...
Jules Le Masson Fletcher Posted February 21, 2022 Share Posted February 21, 2022 Are you sure you have a 2.5kw bulb in there? Might be a dumb one; but never know. Is there a on and off button that's tripping on the head itself? The ballast itself isn't tripping off isnt it. You can restrike from the head itself with these older models sometimes. And if it doesnt trip on the ballast, you can force the strike on, on the head directly. Finicky but whatever works sometimes. Link to comment Share on other sites More sharing options...
Eric Eader Posted February 21, 2022 Share Posted February 21, 2022 This may be the big bear moving farther out on a tiny limb, but try holding the switch depressed for a longer period of time and see what happens. Check that the switch actually does its job then try the above other solutions if it doesn't. Link to comment Share on other sites More sharing options...
Eric Eader Posted February 21, 2022 Share Posted February 21, 2022 Correction: Try the other solutions after determining that the switch is in fact working properly. My bad. Link to comment Share on other sites More sharing options...
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