As far as I know, BenQ just doesn't sell DMD to end-users for replacement. Maybe you could contact their customer service directly and ask for an OOW service.Hi all need some advice. I have a W5700/HT5550 that has developed the following (see photos). I think its a stuck DMD mirror. It could be a dust blob but I dont think so. I am just out of warranty for repair (I did ask benq for some good will but they just directed me to a service center). I have the tools and skills to replace the DMD myself but I am not sure of the part number I need to purchase or a possible supplier. Would anyone be able to advice on this part number for the DMD I need.