AV and Multimedia Related Thread, Blurry projector in Technical; I have an InFocus IN104 that is, quite ironically, not in focus.
It's running at the native resolution but everything, ...
16th September 2013, 10:26 AM #1
I have an InFocus IN104 that is, quite ironically, not in focus.
It's running at the native resolution but everything, including the on-screen menu, is significantly blurry. The focussing rings are working and I can move beyond the 'best' focus point in either direction, but the best is pretty bad. It was perfectly crisp up until a few months ago - not sure when exactly it went wrong as its in a room where staff rarely report problems, and even when I mentioned it the teacher in the room at the time said they hadn't noticed(!)
Have given it a blast through with an air compressor, which made no difference. Here's what is looks like at its 'best' focus point (cameraphone unfortunately which isn't helping, but you get the idea).
It's 3 years old (so inside warranty), but does anyone have any suggestions before I attempt to deal with the ever-helpful InFocus support line?
16th September 2013, 10:29 AM #2
I had pupils smear things on the lens and once a pupil took the lid of a milk bottle and placed it over a lens. It looked like part of the projector until I scrutinised it!
Anyhow wipe the lens. (sorry if this sounds super patronising but you didn't mention lens cleaning)
Just to clarify it was the little plastic bit under the bottle lid that then melted to the lens. It looked perfectly circular and proper until I turned the projector off and put it on the bench.
Last edited by chazzy2501; 16th September 2013 at 10:33 AM.
16th September 2013, 12:09 PM #3
I had given it a quick wipe, but even after a proper clean there is no improvement unfortunately
16th September 2013, 12:13 PM #4
VGA connection? A bent pin on the vga lead has caused all sorts of errors for me in the past. Also worth checking the vga wall socket, or at least, remove it as a suspect.
16th September 2013, 12:15 PM #5
I had this on a unit recently - it wasn't clear even at its optimal focal point. I think something has gone wrong with the mirror setup inside, perhaps from a sharp knock or other abuse. Had to write it off though
16th September 2013, 01:12 PM #6
Wow, funny timing, I have just been tottering on top a very tall ladder on the hall trying to troubleshoot the very same problem.
Doesn't appear to be anything we can do to sort it out though. I am thinking its internal...
16th September 2013, 01:15 PM #7
@sparkeh you really should take your stilettos off before going up a ladder h&s you know
Thanks to plexer from:
sparkeh (16th September 2013)
16th September 2013, 01:21 PM #8
But you just can't wear flats with a pencil skirt now can you?
Originally Posted by plexer
Thanks to sparkeh from:
3s-gtech (16th September 2013)
16th September 2013, 01:25 PM #9
My experience of this is a member of staff has left it running for a while (days and weeks on some cases).
In the rare cases when this is not the case the teacher has turned the brightness or contrast to maximum.
Could also be the bulb.
If all looks well replace the bulb and then the projector.
16th September 2013, 01:25 PM #10
I would take it down load try it with a different computer and vga load.
I have seen it where the cable or sockets have been damaged. Vga splitter has gone or needs a reboot. Refreshment rates are ok for the monitor but not the projector.
Check the filters and clean and blow the projector out with compressed air.
16th September 2013, 01:43 PM #11
Have tried with a different input and as I said before, even the on-screen menu is blurred, as is the boot-up image. Lamp has 766 hours on it which doesn't seem that high to me, but I'll swap the lamp with one from a working projector and see what happens.
Last edited by AngryTechnician; 16th September 2013 at 01:45 PM.
16th September 2013, 01:45 PM #12
If the focus is out I doubt a new bulb will have any effect tbh it sounds like it's had a whack and the internals are out of alignment.
Warranty call time.
16th September 2013, 03:00 PM #13
I suspect you will all be unsurprised to hear it was not the lamp.
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