Hi Folks!
I have read a lot of posts here that helps me a lot. However, I´ve been trying with little success to bypass both lamp ballast and power supply from projector Optoma DS551, my aim is to use only DMD´s features. The solution, as seen in the figure attached, worked about 60s and the projector turns off and enters in standby mode. I utilized the logic analyzer to observe all signals within the original projector setup and my proposed solution, and no discernible differences were observed. The second file ( 2024-06-14 Session_01 All_Signals.sal) attached is the logic analyzer with the original setup (Saleae format - https://www.saleae.com/). As seen in this file the projector stops working with the PS_ON status. Unfortunately, in my configuration, I have observed that the PS_ON signal sent by the projector powers down the system after 60 seconds, even though the UART communication with the Arduino Uno worked fine throughout. Could anyone assist me with this issue?
Best wishes, Pablo.
ps. I attached the probable system diagram and power supply schematics.
I have read a lot of posts here that helps me a lot. However, I´ve been trying with little success to bypass both lamp ballast and power supply from projector Optoma DS551, my aim is to use only DMD´s features. The solution, as seen in the figure attached, worked about 60s and the projector turns off and enters in standby mode. I utilized the logic analyzer to observe all signals within the original projector setup and my proposed solution, and no discernible differences were observed. The second file ( 2024-06-14 Session_01 All_Signals.sal) attached is the logic analyzer with the original setup (Saleae format - https://www.saleae.com/). As seen in this file the projector stops working with the PS_ON status. Unfortunately, in my configuration, I have observed that the PS_ON signal sent by the projector powers down the system after 60 seconds, even though the UART communication with the Arduino Uno worked fine throughout. Could anyone assist me with this issue?
Best wishes, Pablo.
ps. I attached the probable system diagram and power supply schematics.
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