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Author Topic: CX 1600 Lamphouse Problem Trevor Bailey Expert Film Handler Posts: 113 From: Woonsocket, RI Registered: Jun 99 posted 01-24-2000 08:27 PM                        One of my fellow techs has been having a problem with a Cinemeccanica CX1600 lamphouse for several months now. The lamphouse will not strike by the 4th show of the day. He has replaced everything in the igniter three times. He has also replaced the lamp and cables three times. We conference called with a third tech to brainstorm but couldn't come up with anything other than a rectifier problem. He says he has 80VDC across the lamp (which I think is a little low) whether the problem is present or not. This lamphouse is being powered by an Irem rectifier. Any input would be greatly appreciated. Thanks! Trevor  |  IP: Logged Ken Layton Phenomenal Film Handler Posts: 1452 From: Olympia, Wash. USA Registered: Sep 1999 posted 01-24-2000 08:40 PM                     Is it a 3-phase IREM rectifier? If so, a phase could be dropping out. Check connections for cleanliness/tightness. Check the "RA" relay board for cold solder joints and take the cover off of the relay itself and look at the contacts to see if they are pitted. If so, repair or replace the relay and/or the whole RA relay board assembly. Sometimes there is an electrolytic capacitor on this board that either leaks or dries up and should be replaced. These are all located inside the IREM rectifier once you take off the top cover.  |  IP: Logged Rick Long Jedi Master Film Handler Posts: 759 From: Toronto, Ontario, Canada Registered: Nov 1999 posted 01-24-2000 09:10 PM                     I had six of the CX 1600s with the same problem. Finally noticed that the points on the spark-gap were rather pointed, and thus, able to leak off a high-votage charge due to corona. I took off the spark gap, unscrewed the points, threw away the centre one, filed the two on the ends to a rounded shape, and set the gap about the thickness of a dime. Has been working fine for 15 years now. Good luck.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-24-2000 10:39 PM                     I once had a internal connecton in the Tesla go bad so it would open after it got hot  |  IP: Logged

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