I have a DB T20 that is projecting a brown smudge/ spot on the screen. It looks like it’s on the lcd if I look through the...

Ok fellow brown smudge DbPower T20 users! I may have found a fix. You may want to wait till I get and install the polarizer filter before you order, but…….. they ARE available on aliexpress. See link below. I ordered two for like $15 with shipping, just because it will probably happen again. The projector is poorly designed and doesn’t stay cool enough which heats up the polarizer film on the thin glass and burns it. It’s pretty easy to get to the part in the projector just follow the tear down guide on ifixit.com and pull the middle glass filter that looks like the item below. Reinstall the new part the same way as the old and reassemble. I’ll do an update when I get and install the part. My guess is it will take a while because it’s coming from some far off destination. Ok Namaste ;) https://www.aliexpress.com/item/40006995...-aa5f-42a7-909d-fa319502332a&_t=gps-id:shopcartRecommend,scm-url:1007.15372.197695.0,pvid:b51bb6be-aa5f-42a7-909d-fa319502332a&aff_platform=msite&scm_id=1007.1537......

I’m still in search. The second unit i received did the same thing after a year or so. I’ll do some searching again. The closest i found a couple years ago was from China. But 15 or 20 dollars for the little glass filter seemed too expensive then. I’m thinking buying used units for parts might be a good idea

Hey there! Unfortunately I couldn’t find the part but did get a replacement unit. It’s just a small rectangular glass lens with polarized film on it maybe 2x3” if you can find the lens it’s an easy swap to pull it out. One option would be to find a unit for parts and pull it. What happens is the film on the lens heats up and starts to burn causing the brown spotting. The replacement I have is around a year and now slowly doing the same thing so I am searching for a parts unit, the lens, or just an upgraded unit that won’t have this issue. Overall its a great little projector albeit and little weak on the light power but it does a fine job at night!

You are correct. I diagnosed the same thing after disassembling. I found a thin glass filter with polarizing film on it which had burned from the fan sticking. The fan may have stuck from dust, lack of lube, or running the unit too long. After searching for ages for the lens which would seem like an easy and cheap replacement (the unit does not work properly without it) I found a couple from China but the cost plus a fan was about the same as a new unit some of which have upgraded fans. If you get another unit from db look into putting a better fan in maybe? It’s not that bad to disassemble and the videos online are good guides Hope this helps