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Author Topic: DP100 DMD overheating Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 05-01-2016 02:33 PM                     There is Peltier cooling on the 12C, but as you found it rarely gets used. I'm not sure how much heat is dissipated in the DMDs or if it changes with light/dark positioning. Even on a 32B I haven't seen full cooler voltage (12V) on a DMD.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 05-01-2016 03:17 PM                     When projecting black the light is being dissipated on a heatsink which is located on the light engine itself. That's why when testing a Barco it is recommended to leave it on black for a while and then check the temperatures. On a Christie it goes on a heatsink fixed on the front of the projector - it's massive because it acts as a heatsink itself! I would have thought that the TEC LED would get solid straight away when the lamp is turned on. I cannot remember seeing a Barco turning the TEC LED on and off depending on the temperature, but I'll check next time.  |  IP: Logged

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