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Help!!! Is my X1 dying...Yellow band on right side - Page 3

post #61 of 124
Thanks all!!!! I found this thread through google last night after my pj suddenly went half black. I was able to completely rebuild my light tunnel iand dismantle / reassembe in less than an hour. The fix is quick and the pics make it super easy. Believe me, I'm not the small parts type of guy, just a salesmen.

p.s. only two pieces were still together, lol.

Gear mentioned in this thread:

post #62 of 124
So I had this problem, followed all the steps, got everything apart, and got the light tunnel out. I placed it on a mat on my table, ready to repair it, and my dog hit the mat (part of it was hanging off), sending the tube flying across the room, finally landing on the hard wood floor, shattering. Sigh. I called infocus, and they wont sell me the part and said I can send the projector in for repair for $130...oh well...

If anyone ever finds where to get this part or something that will work, let me know.
post #63 of 124
So thanks to all for all of the information in this thread - had the "yellowish band on the right side of the screen" problem show up a few weeks ago - did some research and became all too familiar with the phrase "4805 light tunnel adhesive problem". I'm not super talented when it comes to this kind of stuff, but thanks to all the posts and pictures, I was able to fix my projector with a $4.50 2-part epoxy purchase and a couple of hours of my time. Got it all put back together, and it looks great.

Austin - while I was looking around at various sites, one person on another forum mentioned they were able to order the light tunnel for about $20 from http://online.projectordoctor.com/ just a month or two ago - but I don't see the part listed on their site. Might be worth an email, though...
post #64 of 124
Hello! I'm from Brazil and this is my first post.

It's just to say THANK YOU for this nice tutorial !!

Yesterday I could fix this issue. I'd like to add that my mirrors (from the "light pipe") are burn on the sides close to the lamp, but in good shape on the other side. So, I just flipped it (now the "good side" close to the lamp). And yes, I have to desmount 2 times, the first time it looked a lot worst (2 black bars!) and the second time, just perfectly!
post #65 of 124
Hi All

I am in the process of doing the lite tube repair on my 4805, great instructions and pictures BTW.
I feel confident I can do it myself.

The choice of glues is RTV Silicon or Crazy Glue.

I have one question for those who have done the repair.

Does anyone have any good or bad experineces of either glue?

Anyone have problems with the glue or silicon not holding long term?
post #66 of 124
bump ........ hoping someone can answer?
post #67 of 124
Use the "crazy glue". Use the glue sparingly. You do not want any excess to interfere with the retaining clip.

If you have never been inside the projector, use extreme caution when handling the color wheel, which must be moved to get to the light tunnel. It is very fragile and easily broken. It is not necessary to unplug the color wheel, which would require a LOT more disassembly, just carefully place it out of the way.

And make sure that the sides are NOT flush with the top and bottom.The end profile should look like this...
LL
post #68 of 124
Quote:
Originally Posted by Sheridan1952 View Post

Use the "crazy glue". Use the glue sparingly. You do not want any excess to interfere with the retaining clip.

If you have never been inside the projector, use extreme caution when handling the color wheel, which must be moved to get to the light tunnel. It is very fragile and easily broken. It is not necessary to unplug the color wheel, which would require a LOT more disassembly, just carefully place it out of the way.

And make sure that the sides are NOT flush with the top and bottom.The end profile should look like this...

Hi

Thanks for the reply/advice and the image. That is very helpful.
I will stick with what is proven (i.e. the crazy glue)
It looks from the instructions that one of trickier things is removing the lens rings. Hopefully it will go smoothly.

Thanks again.
post #69 of 124
Removing the rings is not hard. Use a screwdriver or some other tool as a prybar. Pry each ring off a segment at a time. IOW, pry a little, rotate the ring, pry some more. Work them off evenly. They are only a press-fit on the barrel. Note the locating tabs when replacing them.
post #70 of 124
Hi

As an update I just completed it all this evening with perfect results.

The trickest part was actually gluing the mirrors.

2 of the 4 were disconnected, if all 4 were disconnected it would have been really tricky to do on the kitchen table.

I didnt do a great job of gluing but it was fairly straight and works perfectly after I fired it up.

Thanks for everyone for the instructions and advice.

I couldnt have done it without you.
post #71 of 124
Sorry for being off topic here, but I'm surprised to see people (like me) still hanging on to an X1. I'm even more surprised to see people (unlike me) still using an X1.

What's an X1 worth these days? I got one in prime condition just sitting there, most of the lamp life still left. I kind of held onto it thinking it would never find a home these days, but maybe it'd serve some better purpose than decorating my ceiling.

There's something cool about an X1 owner's thrft/enginuity. I haven't taken apart mine for any reason, but it did inspire me to build my own panamorphic lens and make my own acoustic panels and such.

My newer Sharp (which I love) hasn't so much as inspired me to build walls for the room. Ah, I guess no romance is like the first.

The guy who polished a piece of aluminum to use in his light tube...lol...wow, kudos. I have this idea that everybody in this thread would be awesome to have a beer with.
post #72 of 124
At first sorry about my poor english language. I´m brazilian and I don´t speak english very well. what kind of glue did you use. Do you remember the brand of this glue? Is it easy to remove the old glue? Do you have anything about clean the color wheel. Before hand, thank for all.
p.s: I have a infocus 4805 projector.
post #73 of 124
Quote:
Originally Posted by loucoporht View Post

At first sorry about my poor english language. I´m brazilian and I don´t speak english very well. what kind of glue did you use. Do you remember the brand of this glue? Is it easy to remove the old glue? Do you have anything about clean the color wheel. Before hand, thank for all.
p.s: I have a infocus 4805 projector.

I used this brand of glue, but I think the gel version would be better:

http://www.krazyglue.com/products/pr...?pc=KG585&g=12

I think you can probably use any type of strong glue (gorilla glue, super glue), it shouldn't matter very much.

My X1 is still going strong after this light mirror fix which I did about a year ago!
post #74 of 124
I first want to thank everyone for their posts and help getting inside my X3. i just finished up with repair on the mirror with superglue and many tweezers and put it back together. well when I fired her up it was still the same...no change of the dark band on the side. so i went back in and opened it up exposing the light tunnel (it's amazing how fast you can get to it a second time after doing it once before) and flipped it thinking maybe it was burnt and that by switching the position of the light tunnel would cause the band to be on the opposide side of the screen. well then i put her back together again and fired it up...same thing on the same side. Very strange. i'm not sure what to do now and if it could be something else besides the mirrors because they are now fixed. any suggestions?!?!? thanks!
post #75 of 124
It can only be the light tunnel. The problem is, the pieces are not in perfect alignment. The sides are not flush with the top and bottom. See this illustration I included. This is how the ends should look when glued together. This is why I recommend replacing it, rather than repairing.
LL
post #76 of 124
thanks for the update. how do I replace it? where do i get one from? i've seen people make their own, but I'd have no idea how to do that and it would be much easier to just buy one. any ideas? thanks again!
post #77 of 124
I normally keep those parts on hand, but I'm out right now. I'll be checking with my parts supplier today to see if they have any in stock and order more.

Quote:
Originally Posted by ejhdmbfan View Post

thanks for the update. how do I replace it? where do i get one from? i've seen people make their own, but I'd have no idea how to do that and it would be much easier to just buy one. any ideas? thanks again!
post #78 of 124
Just finished this on my X2 and it works great again. We used Loctite Super Gel.
post #79 of 124
Thanks for all the info. I will be trying this on my SP4805 later this weekend. I have only a little discoloration. It's on the left edge, and on a 1024x768 desktop stretched out (proj is widescreen) the discoloration only affects the first column of icons, and they are still visible, just dark/discolored.

I expect only 1 of the 4 pieces of the tunnel has moved, so hoping for an easy fix. I wonder if I should reinforce the other corners of the tunnel with a little gel super glue while I am in there. I'll post with the results.
post #80 of 124
It wouldn't hurt to reinforce the other corners. What you don't want to do is put so much goo on the tunnel that it affects how it sits in the cradle. And above all else..handle the color wheel with extreme care. It is very fragile and will break if you look at it cross-eyed. And gluing the tunnel back together, you should be aware that the sides are NOT flush with each other. Look at the end viewing I have attached. The tunnel MUST look like this or you will have shadowed image on BOTH sides.

Oh, and if you change your mind about repairing the tunnel and want to replace it, I have a new 4805 tunnel on hand. Otherwise, good luck with your repair.

Quote:
Originally Posted by frankqfrank View Post

Thanks for all the info. I will be trying this on my SP4805 later this weekend. I have only a little discoloration. It's on the left edge, and on a 1024x768 desktop stretched out (proj is widescreen) the discoloration only affects the first column of icons, and they are still visible, just dark/discolored.

I expect only 1 of the 4 pieces of the tunnel has moved, so hoping for an easy fix. I wonder if I should reinforce the other corners of the tunnel with a little gel super glue while I am in there. I'll post with the results.


LL
post #81 of 124
"Oh, and if you change your mind about repairing the tunnel and want to replace it, I have a new 4805 tunnel on hand. Otherwise, good luck with your repair."
Is the 4805 tunnel compatible with the x1a? iF SO I'LL BE HAPPY TO BY THAT ONE FROM YOU
post #82 of 124
They have different part numbers, but as far as I can see, they are physically identical.

Now, the color wheels are not the same.
post #83 of 124
Hi Sheridan;
I need a light tunnel for my X1a. For how much would you sell the one you have for?
post #84 of 124
It worked well, I broke a tab getting the front panel off but then used a paper clip through the vent to push the tab and the back panel was easier. The light tunnel was still intact but some glue was loose and then BOOM why am I holding this thing in my big fat fingers and not tweezers and it's in 3 pieces (2 stayed together) so it was a bit more challenging than I hoped having to line up the pieces from scratch. I was super careful with the color wheel but it did barely bump the sides when i had to move it but I was going really slow. thanks avs
LL
LL
post #85 of 124
Is the X1 light engine compatible with an X1a?
post #86 of 124
No difference.

Quote:
Originally Posted by jbelkhadir View Post

Is the X1 light engine compatible with an X1a?
post #87 of 124
Thanks for the great instructions.

My light tube was so fragile that it came apart into 4 pieces so be careful.

I also lost 2 color wheel segments during the repair and re-glued them. In case anybody needs to know - the segments are symmetric (not always obvious when more than one segment is missing).

Krazy Glue Gel seems to be easy enough to work with.

I'm thrilled with my repair. I couldn't have done it without these great instructions and the feedback from everybody here on AVS.

Thank-you ALL!
post #88 of 124
Where can I buy a brand new light tube?
post #89 of 124
For which projector?

Quote:
Originally Posted by dkalthoff View Post

Where can I buy a brand new light tube?
post #90 of 124
Ok, here's a little more info for anyone who had trouble doing this and still having a dark line on the side of their picture:

I ripped my 4805 apart and of course my light tunnel was in 3 pieces. I didnt realize it wasnt supposed to be a perfect rectangle so I of course lined the pieces up so that at least on the one side, the pieces met perfectly with no overlap - like there's supposed to be. Well of course that left me still having my dark line, no matter whether I switched it upside down or not, and I was frustrated. After reading this whole thread (which I didnt do the first time, I assumed what was on the 1st page was enough, thought maybe the 2nd and 3rd pages were thanks and all the rest), I realized it was supposed to be shaped funny with some overlap (someone on here provided an awesome pic), so I had already krazy glued this sucker together like fort knox, so this was gonna be a problem. I basically broke it apart gently by prying it apart with one of the tweezers i was using. Of course I broke one of the mirrors right in half, which was a super-bummer. Anyways, once apart I glued that mirror back together hoping for the best, then glued the remaining piece in so that it was shaped the way it was supposed to be shaped. Finally, I figured I would have a satisfying picture again, and life would be good. Of course not. I overglued this baby so badly that my picture was still experiencing a little darkness in the top left and the bottom right. I switched it upside down, the same, then I sanded off some glue, and it got worse!! Then I switched it upside down again, the same result, then I sanded each outter panel of each mirror to a (you guessed it) mirror finish, and voila! No more darkness anywhere, life is good.

Moral of the story: If you're one of the people who tried this and didnt get the result - you put on too much glue or you probably made it into a perfectly edged rectangle. Dont do either, but if you do, then sand off the extra glue or break it apart (there's probably glue solvents out there but it was late and I was already mad) and get it back together again in the right shape without any extra glue on it. It works.

Thanks to all for posting this info up, if it werent for you I'd have thrown my projector in the garbage and bought something not made by In Focus. This is the 3rd time my projector has needed to be fixed (first two times were color wheel failures of some sort, but covered under warranty thankfully). Lame.
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