Other Parts Discussed in Thread: DLP2010NIR, DLPC150
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Could you please share the schematics ad list of changes other than the usage of LBR2012T100K. We shall review it and get back to you.
Thank you for the reply. changes are as follows:
Thank you for uploading schematics. Our team members will review it and get back to you in couple of days.
This is a common symptom of a damaged DMD. If Vofs droops too low the DLPA will drive its INTZ output low. This initiates a fault shutdown of the system. Once the shutdown is complete if PROJ_ON is high they DLPA will start up. If Vofs again droops too low INTZ is driven low. etc.
Usually this is caused by a damaged DMD that draws more current than the DLPA can supply. Have you tried replacing the DMD?
Thanks for your reply.
Currently, I only have single DMD. I already ordered few DMD, it will take some to time to get delivered to me. Also, Now with the existing DMD I see some flicker every time RESETz is applied by DLPA2005. And when P1V8 (VCC) and all other signals are connected with DMD except Vofs,VBias and Vrst, open circuit voltages of Vofs,VBias, Vrst are reaching the specified value. Only when three voltages are connected with the DMD, fault shutdown occurs. This is extra information, I wanted to give. Also, Can you tell the possible reason of DMD damage after checking the schematics.
Please expect a response from our team by mid next week.
DMD damage of this type is typically due to hot plugging/unplugging.