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DLP5500: DLP vertical lines issue on backgraound

Part Number: DLP5500
Other Parts Discussed in Thread: DLPC200

Dear.

i'm working with DLPC200 and DLP5500. but i using my interface cable instead of DLP5500FLEX Cable. it is from samtec with 50ohm each line but there are some problem

I see vertical lines at the background. If I upload an all black image, the lines are white and if I upload an all white image, the lines are black. How can I get rid of these lines??

i think it is inpedence issue but i know DLP5500 has internal term - Differentially terminated 100 ohm. is it right? is it need any differential termination 100 ohm on my board?

and is there any PCB design guide between DLPC200 and DLP5500.

important issue are vertical lines at the background.

i hope your feedback.

thanks.