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optoma HD70 color wheel shattered - Page 3

post #61 of 153
danieloneil01, how did you projector wheel replacement turn out. Were you able to get the color wheel from optoma, or did they eventually turn you down? don't leave us hanging...
thanks.
post #62 of 153
::danieloneil01

My projector (2006 HD70:3500hrs+) may have the same issue.

Could you please snap some pics of parts and procedure?

My bulb was on time to die when my wife heard a pop and crack, so I thought it was the bulb. The bulb was fine, but I noticed broken colored glass pieces (large and small) throughout the projector that looked more pearlescent rather than defined RGB. I believe the bulb overheated and what popped first was the color wheel.

Its really lame to discover that service for projectors such as from ProjectorDoctor racks up an instant bill of $195(flat rate) + Parts + Shipping. If you decline their quote they'll still charge a $65 evaluation fee.

So to get a projector up and running again its going to cost approximately:

$ 195 labor
. 130 color wheel
+ 250 bulb
$ 475

Considering that its not too unlikely that the entire scenario can happen again and with no warranty to blanket it, and adding the fact that the market for new 1080p projectors nowadays costing only double the price of this fix, well, I'm in the mood to wait or even jump ship from the whole projector thing now that bigger(big enough), brighter, longer lasting LED TVs are coming to shore.

The only problem is, what do I do with this broken one. Donating to an orphanage just seems mean considering the cost to fix, unless someone knew of a friendly service that would donate some time or discount at least.

Please update us if your sitting on your couch watching movies already!!

if anyone can PM or IM or email HIM, that would be great... ty
post #63 of 153
Your bulb did not overheat, the projector would have shut down if that occurred. The color wheel failed on its own. They do that. I've replaced dozens of color wheel in projectors, mostly Infocus, some Optoma.

As far as how danieloneil01 fared, I got a PM from him not long after that reporting that he got the color wheel and had an accident with it. He managed to drop it on the table and it shattered. So the time and money he spent was for naught.

I don't know of ANYONE in business that donates their time and stays in business. And the cost you were quoted was quite reasonable. If you believe otherwise, you're perfectly free to get the part yourself and dismantle your own projector. Just remember, the color wheel is very fragile and WILL break if mishandled.

Good luck.
post #64 of 153
Thread Starter 
If he's careful he can do it on his own, its not that hard. i bought just the colorwheel (I think it could be found online for around $150)
post #65 of 153
Wow, sorry guys I haven't been on here in a long time. I broke the color wheel I got from Optoma when I was trying to put it in. I dropped it 6" or so on the counter and that was the end of that. But it's still working and the only thing I did was get an air can and blew all the dust out when I had it completely taken apart.

And if you don't drop the color wheel it's easy to take the projector apart and install a new one. The Optoma has been a great projector. It even survived being filled with water during Ike.
post #66 of 153
Broken color wheels are not just an Optoma problem. I had a brand new BenQ W10000 with only 30 hours on it before the color wheel shattered. I've also read about other makes including Infocus and Sharp that had bad color wheels. It's just one of the possible things that can go wrong with dlp. Of course, lcd has its own potential issues so nothing is foolproof.
post #67 of 153
To be clear, I broke the color wheel. I have man hands so handling something that small isn't easy. I think dust may have gotten in the shaft that spins so the motor wasn't able to spin it fast enough.
post #68 of 153
Quote:
Originally Posted by areaglew View Post

Reviving this thread for a similar issue...

I think my color wheel is going out on my HD70. The symptoms:
1) The projector turns on fine and the image is sharp and vivid.
2) After about 20 minutes, the projector image flashes with different colors. The image is still visible, but the colors are wrong.
3) A few seconds later, the projector gives a brief whine... then it shuts down and the warning indicator shines a solid orange.
4) The projector is unresponsive to the remote. I have to unplug and replug, then it will start up again, although it takes about 5 minutes of start-up attempts before it will display an image. Then back to step 1.

Any idea if this is a color wheel problem or a lamp issue? Or maybe something else? The lamp has about 1200 hours on it. I bought the projector used about a year ago, and a new lamp or color wheel would cost more than the projector did... so I'm not sure if I would try to fix it unless I was sure of what the problem is.

Any takers?

Also, is there an online guide to taking the HD70 apart?
Any info would be appreciated...
--
bill buck

This is what happened to me! I have had the HD70 for 2 years on the dot and had 2300 hours on the bulb. I ordered a replacement, assuming that was what it meant. Well, today we put in the new bulb and 15 minutes later, the exact same thing happened! I did some research, found this site and still have some questions. We opened it up, cleaned it out - and the color wheel looks like it is in perfect condition. Nothing was broken, the unit was pretty clean. Since the bulb cost me $200 and a wheel is about the same, we are darn near the cost of a new unit. This just seems over the top to me, to pay $400 every 2 years to keep it going...
post #69 of 153
Oh, and my husband just turned it back on, after cleaning it out and seeing the color wheel looks fine. Put in the old bulb, as it still has hours left on it and now it is showing white vertical lines across the screen, like in the other post I saw. Ugh.
post #70 of 153
White vertical lines in a DLP are NOT caused by the color wheel. They are a sign of a failure in the image processor. Not a cheap repair, the entire main board would be replaced.
post #71 of 153
Quote:
Originally Posted by Sheridan1952 View Post

White vertical lines in a DLP are NOT caused by the color wheel. They are a sign of a failure in the image processor. Not a cheap repair, the entire main board would be replaced.

What explains what was happening BEFORE the white stripes? Which, by the way - after much fiddling, are now gone, thankfully!
post #72 of 153
If you're referring to the color instability issue, that COULD be a faulty color wheel, but the fact that you had those white lines, points to a failing processor. The white lines are lines or columns of pixels (mirrors) in the DLP imager that are being commanded by the processor to turn on. That they have gone away only says that the problem is intermittent and could come back. Some mistakenly believe that it is a faulty connection, but that would result in BLACK or Blank lines where the columns are not getting any commands and therefore, off.

And the lamp will NEVER be the cause of any color or image problems, other than reduced brightness/contrast.

If the problem never comes back for you, great. We can only hope. I'm just giving you the best information I can based on the information you provided and my years of repair experience on projectors just like yours.
post #73 of 153
I have an Optoma HD32 which I believe is just like the HD70. I am getting the flashing colors problem after 20-30 minutes also. The flashing color problem seems worse when the fan comes on to cool the projector and when the room gets up to around 70 degrees.

I believe that I have dust on/around my color wheel. I have opened up and cleaned the dust on the lense in the imaging chamber to solve the gray dot problem. However, I do not know what/where the color wheel is. Could someone show me a picture or give directions on what to clean?
post #74 of 153
If you opened the imaging chamber, you completely missed the color wheel. It is located in the optical path between the lamp and the imaging chamber. It is somewhat enclosed. However, dust on the wheel is not going to cause the problem you're having. It is most likely an indication of impending failure of either the wheel itself or the driver, which is part of the main board.

Quote:
Originally Posted by sdmunn View Post

I have an Optoma HD32 which I believe is just like the HD70. I am getting the flashing colors problem after 20-30 minutes also. The flashing color problem seems worse when the fan comes on to cool the projector and when the room gets up to around 70 degrees.

I believe that I have dust on/around my color wheel. I have opened up and cleaned the dust on the lense in the imaging chamber to solve the gray dot problem. However, I do not know what/where the color wheel is. Could someone show me a picture or give directions on what to clean?
post #75 of 153
Hello to everyone! I am an Industrial Electrician and a gadgeteer. I have been scouring the internet trying to find a color wheel for an Optoma/Dell projector and now I know why they are so hard to get... thanks Sheridan1952. I have a small business on the side doing computer repairs. I purchased a Dell 2200MP projector on ebay. It was described as noisy with a good picture. I found that the color wheel had the clear quadrant missing so it was out of balance. I also have another of the same model for parts that was in a flood. When I took the color wheel out of it, it was missing a chunk of one of the sectors. Using an exacto knife, I carefully formed a piece of packaging tape onto the entire face of the wheel to hold the broken piece. When I put it in my good projector, it was quiet with a good picture. As I expected, after fifteen minutes, the tape began to deteriorate from the heat and it was beginning to get noisy so I shut it down to prevent any further damage. Does anyone know what the equivalent Optoma model number of the projector is, or was it a 'Dell-only' model made by Optoma? Also, would I be able to purchase the proper wheel from you Sheridan1952?

Thanks for a great forum and also for any further help!
post #76 of 153
To the best of my knowledge, Dell's projectors are made by company in Taiwan (Coretronic), not Optoma. But just to check, I did take a close look at the 2200MP and it bore no resemblance to any that Optoma ever made.

There is a possible lead I'm trying to run down for parts but I am not hopeful. My main supplier has been trying to get Dell parts for sometime without success. But if I have any news, I'll post back here.

Quote:
Originally Posted by JaymzMhart View Post

Hello to everyone! I am an Industrial Electrician and a gadgeteer. I have been scouring the internet trying to find a color wheel for an Optoma/Dell projector and now I know why they are so hard to get... thanks Sheridan1952. I have a small business on the side doing computer repairs. I purchased a Dell 2200MP projector on ebay. It was described as noisy with a good picture. I found that the color wheel had the clear quadrant missing so it was out of balance. I also have another of the same model for parts that was in a flood. When I took the color wheel out of it, it was missing a chunk of one of the sectors. Using an exacto knife, I carefully formed a piece of packaging tape onto the entire face of the wheel to hold the broken piece. When I put it in my good projector, it was quiet with a good picture. As I expected, after fifteen minutes, the tape began to deteriorate from the heat and it was beginning to get noisy so I shut it down to prevent any further damage. Does anyone know what the equivalent Optoma model number of the projector is, or was it a 'Dell-only' model made by Optoma? Also, would I be able to purchase the proper wheel from you Sheridan1952?

Thanks for a great forum and also for any further help!
post #77 of 153
Thanks! I'll be patiently waiting and checking ebay for more 'parts-only' projectors. As per my description, I'm sure you know that the color wheel is made up of four equal sections. Only the clear 'filter' is gone. The previous owner must have removed the loose piece from the projector before selling it. There isn't any part of it left in the hub, so the whole piece must not have been seated properly from the factory.
post #78 of 153
Not quite. The segments are merely glued in place individually. Color wheel failure, even just one of the segments, is not uncommon. And the segment could have fallen out through a vent or if the lamp was removed.
post #79 of 153
Clear segment missing? Hmmm... one of the DLP hacks to improve contrast is to black out the clear segment. The previous owner may have attempted to do this and knocked it out.

Hopefully you will find another wheel to use.
post #80 of 153
I forgot about that trick. Thanks.

Quote:
Originally Posted by reconlabtech View Post

Clear segment missing? Hmmm... one of the DLP hacks to improve contrast is to black out the clear segment. The previous owner may have attempted to do this and knocked it out.

Hopefully you will find another wheel to use.
post #81 of 153
Yeah, could be. I'm sure he took it apart, though, as the screws are missing on the bottom as well as the caps that hide the screws on the side of the case. What are my chances of successfully removing the excess glue on the hub and prying at the open space where the missing segment was to open the hub? I could then put in the clear segment from my 'parts' wheel and glue it back together.
post #82 of 153
As long as you are careful, then there is no reason you won't have success. GENTLY scrape any glue residue off the hub and the glass and I would use a small amount of high heat epoxy. Superglue would work, but the heat and centrifugal forces would cause failure over time.
post #83 of 153
The color wheel in my HD70 exploded on me last night. I called the number that was listed in this thread and have a new one on the way. It only costs $59 + $12 standard shipping.

Can anyone explain how I replace it? I tried taking the projector apart last night to at least clean all the broken color wheel pieces out. I could only remove the bulb and the front cover.... couldn't even get to the broken glass. I don't know what you guys mean about just one screw??

Any ideas would be appreciated.
post #84 of 153
http://tantht.blogspot.com/2009/02/h...om-optoma.html

This guy created a pretty good detail blog. I was impressed!

A really good guide to opening up your hd70 and cleaning out the dust blobs from the lens assembly. But it's also a good guide to get the projector apart to change out the color wheel even tho it doesn't show you how to do that, maybe someone that is going to do that can take some good pics for the rest of us???

After reading for a few hours, I guess my lamp flicker at startup is kinda normal...

Good Luck on changing your color wheel! Hope I don't have to do it!
post #85 of 153
My Optoma EP732 starting acting up last night. Looks like one of the colors are missing. All the blues are gray and yellows are purple. There's no reds, greens, yellows or blue. I have it open and what I can see of the color wheel, it seems ok, it's not shattered. Is this a symptom of a broken color wheel? Or something else?

Thanks
post #86 of 153
First, is your menu normal or is it also affected?

Second, A missing segment would mean a couple of things. One, the wheel would be out-of-balance and you would feel a vibration. Two, the loss of a segment would result in that color missing from the spectrum.

Now if all the segments were missing, you should be able to see that and the result would an image that is completely B&W.

If the wheel is intact yet the colors are scrambled, that means something else is going on. Check the image using a different input, check with a different source. IOW, eliminate every possibility.
post #87 of 153
The menu is also off color and when the projector is warming up, screen is all white and the word optoma is purple.

No vibrations, and it sounds normal

The image is gray white and purple

No matter which DVD player or comp I use as an input, it's still bad. Not sure what you mean by 'IOW'. And I don't think the video input would make a difference, composite or S-Video, if the color is wrong when the projector is warming up...don't you think?
post #88 of 153
IOW - In Other Words.

I hate to say it, but it sounds like you have a major failure. But before we panic, try this...Optomas can be affected by dust. Open the projector and use canned air (when the projector is cold) around the color wheel and the sensor. If that doesn't take care of it, then based on everything you're related, it's toast.
post #89 of 153
I guess it is toast... I had already blown it out. I might have missed the sensor....where's it located? Thanks for your help
post #90 of 153
It would be right next to the color wheel. A very small piece, part of a board. Did you open it to do that or just blew in from the lamp opening?
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