simonw Posted March 30, 2017 Posted March 30, 2017 As the appalling picture above just about shows I've got a SMART board with, what I think are, stuck pixels around the right hand side and top and bottom right of it. They remain on the board when I disconnect the client machine, leaving the projector on. I've tried disconnecting and reconnecting the projector with no effect. The bulb was replaced in November. Board : SMART SBX880 Projector : NEC U250X Can anyone advise of a fix? Many thanks Simon
Joanne Posted March 30, 2017 Posted March 30, 2017 This happened with a couple of promethean projectors here. I got told there is nothing you can do and it's a new projector. Although part of me thinks you could swap out a part inside... that little 3 screen colour split block... but I'm not sure how difficult that would be. It would cost more to repair if you sent it off than to replace it.
NB9457 Posted March 30, 2017 Posted March 30, 2017 JScreenFix - Pixel Repair That can sometimes work, but end up being a warranty/replacement if it's quite bad.
Joanne Posted March 30, 2017 Posted March 30, 2017 JScreenFix - Pixel Repair That can sometimes work, but end up being a warranty/replacement if it's quite bad. Not quite suitable for a projector though! Hahahah!
NB9457 Posted March 30, 2017 Posted March 30, 2017 Not quite suitable for a projector though! Hahahah! Most are still only a little LCD panel inside, so could potentially work!
simonw Posted March 30, 2017 Author Posted March 30, 2017 Thank you for your replies. Yeah, I think the projector is out of warranty. Not sure I'm brave enough to go tinkering with the projector internals.
Joanne Posted March 30, 2017 Posted March 30, 2017 get another projector for the class and then experiment on that one to see if you can fix it!
Ertech Posted March 30, 2017 Posted March 30, 2017 I had a similar issue with one of our NEC projector and it was under warranty - the engineer just cleaned reflector just behind the lamp... 1
simonw Posted March 30, 2017 Author Posted March 30, 2017 I had a similar issue with one of our NEC projector and it was under warranty - the engineer just cleaned reflector just behind the lamp... Thank you, I'll give that a go.
difinity Posted March 30, 2017 Posted March 30, 2017 Looking at the alignment of the white dots it looks like a faulty DMD rather than dust. It's made up of lots of tiny mirrors and some get stuck.
ollyyllo Posted March 30, 2017 Posted March 30, 2017 would this work? A few people in the comments say it fixed stuck pixels, but they might be trolling?
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now