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Hi!


I have an Optoma HD33 wich displayes vertical black lines across the screen. The lines appear even in the boot up logo so I'm confident that it has nothing to do with the input signal. I have tried the classic squeeze trick, but with no luck. I have taken out both motherboards and power circuit board and cleaned them with electronic cleaning spray. I have baked all three circuit boards in oven for ten minutes in 190 degrees centigrade to fix any cracked or bad soldering, but still no improvment. I haven't yet tried to mess with the color wheel or DLP-chip. Does anyone have any tips on what the problem can be. I'm capable of soldering bad components, but to replace all would take forever.
 

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