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*Official* Optoma HD20 Thread - Page 108

post #3211 of 3967
I think I'm just going to run more cables this fall when I go in the attic to run the HDMI cable permanently. The VGA cable is a cheap (but seemingly good quality) 25' cable. No visible degradation of picture until after 1080i. Have tried 1080p with the 360 on it and I get ghosting and the picture is not sharper, so I just use 1080i. Could get converter/switchers from monoprice, but I think keeping the native image in it's own form is best.
post #3212 of 3967
Hey everyone, I just picked up my HD20 today, and I love it, although i'm projecting it on a VERY dark brown wall, so I need to get a screen. My question is, I need a mount for this thing. My ceiling fan hangs down 24 inches. The monoprice mount I was looking at only has extensions to 24 inches. What is everyone else mounting their HD20 on?

Thanks!
post #3213 of 3967
Quote:
Originally Posted by cattlehound View Post
HD20 flickering color light issue (Color wheel sync)

http://www.avsforum.com/avs-vb/showt...65581&page=103 color wheel, thanks, Rew452

http://www.avsforum.com/avs-vb/showt...165581&page=97 cleaning instructions / opening, thanks lostsole1976

Thanks very much to the two guys who posted these informative threads. After cleaning the projector using Lostsole's guide (Breaking a couple of clips of course) I still had what I believe to be the problem now, a color wheel sync issue. After running my hd20 on High Altitude for months the issue set in and HA no longer helped.

After thinking about Rew's color wheel replacement I opened her up again to have another look at the situation. He suggests cleaning the sensor that times the wheel, its attached as an assembly so I popped the wheel out for a closer look. Looked fine...

This is an assumption and I would very much like anyone having the same problem to try this and confirm or deny the solution.

The sensor detects a little black tab on the wheel axis, mine was melted/ partially missing. I replaced it very carefully (Wheel being fragile) using dark blue electrical tape and a sharp craft knife.

Thankfully the original was still half there; I scored the leading edge of the remnant with my knife and peeled off the remainder. after cutting an appropriate width of tape I replaced the orginal following from the scored mark. I wasn't sure of the length of tape so I estimated it off of Rew's pic of his new color wheel... Put it all back together... color still wrong but no flicker

Pulled her all apart again... I thought for a while and had a beer...

The new tab of tape the sensor uses needs to be a certain length (obviously) The original piece lines up with the edge of one of the segments on the color wheel, my piece was too long I thought. I trimmed (Carefully) using the other edge of the same segment on the color wheel as a guide. press the tape down firmly. bang it all back together

For me; Problem solved, cost literary nothing, didn't take more than half an hour. Most expensive part... 1 beer

PS projecotor bulbs are fragile and shouldnt be moved while hot
Quote:
Originally Posted by mechbeav View Post
When the projector is on, press "off" once, then left twice, then up. This will bring you to the service menu where you can check firmware version as well as other interesting things.
Update,

issues resurfaced, deconstructed projector...

painted black mark (tape came off)

entered service menu, ****** color wheel to 290 (from316)

all good
post #3214 of 3967
Does anyone have a recommendation for ND2 filters?
post #3215 of 3967
I just picked up my HD20 yesterday. This is my first projecter and I am really impressed so far. For testing I was projecting about a 100" image on to a dark tan (Toasted Wheat) wall and the picture was great. I can't wait to see it on a proper screen!
post #3216 of 3967
Quick question. Contemplating going for the Optoma HD20 or Mitsubishi HC4000. Anyone with experience with these two projectors ?
post #3217 of 3967
Quote:
Originally Posted by TType85 View Post

For testing I was projecting about a 100" image on to a dark tan (Toasted Wheat) wall and the picture was great. I can't wait to see it on a proper screen!

That's a proper screen just not the correct color.
post #3218 of 3967
Quote:
Originally Posted by goneten View Post

Quick question. Contemplating going for the Optoma HD20 or Mitsubishi HC4000. Anyone with experience with these two projectors ?

I was looking at both... depends on your budget. Since I bought the HD20 for $650 refurb then my decision was made. No way was I paying double the price for a "slightly" better projector. I also wanted a white projector to match my ceiling.
post #3219 of 3967
Quote:
Originally Posted by goneten View Post

Quick question. Contemplating going for the Optoma HD20 or Mitsubishi HC4000. Anyone with experience with these two projectors ?

I own the HD20 and I have seen and demoed the HC4000. If you have the right room that can accept the HC4000's offset, in my opinion it is a better pj. The Mits just did not work in my theatre room with its more pronounced offset as I have just a 7' 4" ceiling with a 6" soffit above my screen.

I am quite happy with my HD20 but the 'step up' in image quality with the HC4000 to me is noticeable and I think worthwhile, especially if you have a light controlled room.
post #3220 of 3967
So I finally got my HDMI switch in from Monoprice. I hooked up all my HD components to it(PS3, 360 slim, HD DVD player, and Dish HD DVR) and ran a 40' HDMI cable to the projector. I watched a lot of HD content on it and Sons of Guns was awesome! I also discovered that my zoom wasn't set right. Whoever had it before had zoomed the thing in a prety good bit. SO I zoomed it back out and the screen is even more massive! I have my 42" LCD HDTV right below it, and I tried to watch some TV on it while gaming, but the screen just looked too small! I played a heck of a lot of 360 last night on it. At first I had a bit of an issue taking in the entire screen at once, but I eventually adapted to it.
post #3221 of 3967
Quote:
Originally Posted by Bryan withaY View Post

I own the HD20 and I have seen and demoed the HC4000. If you have the right room that can accept the HC4000's offset, in my opinion it is a better pj. The Mits just did not work in my theatre room with its more pronounced offset as I have just a 7' 4" ceiling with a 6" soffit above my screen.

I am quite happy with my HD20 but the 'step up' in image quality with the HC4000 to me is noticeable and I think worthwhile, especially if you have a light controlled room.

Thanks Bryan ! Do you notice any light bleed from the projector ? I think that is one of the negatives I've read in some reviews. Also, the noise. Is it really bad ? Or are the reviewers making it more of an issue than it really is ?
post #3222 of 3967
Quote:
Originally Posted by goneten View Post

Thanks Bryan ! Do you notice any light bleed from the projector ? I think that is one of the negatives I've read in some reviews. Also, the noise. Is it really bad ? Or are the reviewers making it more of an issue than it really is ?

Yes, there is light bleed (or scatter) from the projector but it does not reflect directly on the screen. It tends to show a bit (if the pj is ceiling mounted) on the left wall facing the screen and gives a bit of a halo on the ceiling. If you have dark, flat, painted walls and ceiling this is not really an issue as the image that this projector emits will keep your eyes on the screen. The projector is quite quiet if you run it in low lamp mode, which depending on your screen type and screen size, is more than adequate. The bigger the screen size the more lumens you'll need. I have a 92" DIY hi-gain painted screen in a dark painted, light controlled room and low lamp works just fine. The projector is ceiling mounted and a foot behind the seating area and I don't notice the fan running one bit.

Where the HC4000 beats the HD20 is black levels hands down, no comparison there. The Mits has the Darkchip3 and the HD20 has the Darkchip2. The Mits also has more extensive calibration settings than the HD20. However, if you spend the time and put in the effort to do some tweaking with the HD20 and the room the pj will reside in, the results are quite satisfying. Blu-ray's look absolutely stunning.
post #3223 of 3967
Thanks Bryan for your comments, much appreciated. I've heard from some people that you can put in a filter to improve the black levels on the HD20. Admittedly I haven't done any research into it, just read one or two posts. If this filter could improve black levels by a decent amount then the HD20 really would be in a class of it's own I think. Do you know anything about this ?
post #3224 of 3967
I know that there are some comments in this thread about ND filters as well on AVForums but that would be the extent of my knowledge.
My feeling is if you have dark walls and ceiling with no or minimal reflections in the room, a decent screen and with making an attempt at calibration of this pj you will get pretty good results. I think back when I had my old 1HD and Z2 projectors and even my HD65, the HD20 trumps them all by a long shot.
post #3225 of 3967
I'm building a Silver Fire DIY screen to help improve the dark levels... Just watched Avatar on plain white thrifty board today and love the image... can't wait for a proper screen...
post #3226 of 3967
Quote:
Originally Posted by goneten View Post

Thanks Bryan ! Do you notice any light bleed from the projector ? I think that is one of the negatives I've read in some reviews. Also, the noise. Is it really bad ? Or are the reviewers making it more of an issue than it really is ?

I should take a photo. Yes there is light bleed. But it certainly doesn't affect the screen at all for me. I would have to check, but I think mine is 13-15 ft from the screen. White screen, light ceiling. No bleed onto the screen.

There are other flaws with the HD20 that while are not show stoppers, they do affect the image. White uniformity is terrible. Though I only notice it if the whole screen is white or very light. It has a red push on one side and a blue push on the other side. The focus changes a little from start to warmed up, and the loose optics can give a slightly un-square image so you have to mess with the front optics to correct.

Though for the price for a DLP 1080p and after it's all setup permanently on my ceiling, I have been happy for the past 1.5 years.
post #3227 of 3967
finally got mine mounted using my $11 monoprice mount... there is some light leaking onto the ceiling but since it's mounted directly over the couch then i'll never notice.
post #3228 of 3967
just got mine hooked up, previous reviews are pretty spot on.. blacks arent perfect, but the picture quality is fantastic otherwise.. couldnt be happier for the money i spent.. would have to spend at least 40% more to do any better.

light bleed is a non issue, it puts a little light spot on the roof right beside it, no way it effects the screen to the eye.
post #3229 of 3967
I wonder if you can use the same theory that you hear about on a screen frame, on the light bleed issue?
You always hear if you are making or buying a fixed screen, you want velvet on the frame to absorb the light. What if you put a patch of velvet on your ceiling where the light bleed is? I wonder if that would help to absorb that light? I might have to try that. Hmm....
post #3230 of 3967
posted this in another thread as well, but i figured you guys might like this.




Quote:


alright guys have everything all set up and the ND filter came in today.

optoma HD 20, 120 inch matt white screen (a cheapo one)

calibration per the avs HD 20 user thread.

pic is with my iphone at about 6 ft from the screen, no processing done to the pic other than cropping.. left the image a little bit 'off' so its easy to tell where the split is.

I am VERY happy with how the ND filter improved the blacks, went from obviously grey, to very nearly black and only a little grey if you are 'searching' for it in a almost all black screen, considering I have white walls and roof, I dont think you can do much better without changing the room itself..


heres a pic showing the change, the nd4 is a little too dark for this projector, made the image look a little 'flat', where with the ND2 the picture looks almost identical in bright screens and grey.. just took a little bit of the punch out of the bulb making the blacks blacker.. optoma HD20UB? lol




post #3231 of 3967
The improvement in black levels is very nice ! I was seriously thinking of buying an HC4000, but this might even be better than that (with the filter in place). I wonder how a stock Pannie AE4000 would compare to your HD20 with ND2 filter for blacks.
post #3232 of 3967
Quote:
Originally Posted by cream puff View Post

posted this in another thread as well, but i figured you guys might like this.

Do you have a link for that thread?

1. Where did you buy the ND2 filter?

2. How did you mount the filter?

3. How big is the filter? (Might be answered for me on the page to buy it)

Thanks.
post #3233 of 3967
post #3234 of 3967
I see Woot has refurbished HD20 and HD180 for $650 + $5 shipping for today only.
post #3235 of 3967
I'm looking to get a <$1000 projector. I've narrowed it down to the Optoma HD20/200X or Viewsonic PRO8200. I've scoured both threads here at AVS. From what I comprehend, the PRO8200 seems have slightly better performance, but suffers from fairly buggy firmware issues and poor customer support. I plan on using the projector in my basement viewing room for the occasional movie and some PS3 gaming.

I plan on posting this in both threads to get contrasting viewpoints.

Thanks
post #3236 of 3967
Quote:
Originally Posted by Mr.G View Post

I see Woot has refurbished HD20 and HD180 for $650 + $5 shipping for today only.

I got mine from them the last time that they did this. So far, I am completely blown away by how awesome it is and have had no problems with it.
post #3237 of 3967
Just completed a Fantasy Football Draft this weekend using my projector powered by my HTPC. Good times were had by all, and had plenty of compliments on the performance of the projector. Even had the window blinds open and lights on in the room, to no real detriment to the viewability of the draftroom.
post #3238 of 3967
Quote:
Originally Posted by Mr.G View Post

I see Woot has refurbished HD20 and HD180 for $650 + $5 shipping for today only.

I saw this same deal as well. I am tempted to get this but am torn between this and the HC4000. For the price though I don't think anything can beat it. Any thoughts? I will probably use an ND2 filter to reduce the bleeding.

For a background on my current setup:
Media Room dimensions: 17'6" (W) x 15' (Depth) x 9' (Height)
Throw from projector to wall: ~14'6" (Or whatever the dimension of the projector is) I will be mounting the projector on a shelf about 8' off of the ground at most.

Ideally I would want a screen size of at least 110'. The room is light controlled and I will mainly be watching HD content (TV shows) 50%; Sports (Football/Basketball) 30%; Blu-ray rips on HTPC 20%.
post #3239 of 3967
Well I just got my HD20 last week, and this is my first pj.
Got to say it hasn't disappointed me yet...well with the exception that I need an HDMI extender for the Xbox...still waiting on that.

Have it ceiling mounted and using a METech 92" motorized screen.

Still working out a few things but loving it so far.
Only problem is that the left bottom corner is lower than the right...with all the corners square...not sure what is causing it...to fix it, the only thing is to have the left corner of the screen come forward a bit. Not sure what else I could do.
LL
LL
post #3240 of 3967
Tried to find anything on this, but couldn't.
Has anyone had anything with the hours on the Lamp, seem to be wrong, or double what they should be?

My lamp says 16hours...but I know for a fact that it definitely isn't passed the 10 hours mark....and I missing something?
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