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DLP3000-C300REF: LC3000 starts to project only in red color

Part Number: DLP3000-C300REF

Hello,

Yes, we are the few people who  are still trying to use LC3000s. A new batch we were lucky to obtain seem to have a peculiar behavior. When they are switched on, sometine they project images only in red color. If we wait for 10 mins and switch them on again, they work Ok and project images in color. To power them, we tried a bench power supply, a CUI PS that was provided by TI for EVM modules and a Laptop USB 3 power. All the same. This problem is very transient. We can have normal behavior for ten consecutive runs, then all of a sudden, the red light case. What's going on? Is there anybody who experienced this funny behavior? Any solutions? We are desperate. Any help will be highly appreciated.

Thank you,

Cem