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*Unofficial* Mitsubishi HC3800 Thread - Page 199

post #5941 of 6366
Mine (now two years old) had the dreaded vertical banding issue that happened infrequently. Sent it back to Mits. in December and they returned it with the problems yours is exhibiting except mine was a little bit more pronounced. Tue Ku in level II support offered to take it back on their dime and give it a new motherboard and updated firmware.

As of now both problems are gone but the unit was returned with a slight aberration ('dust blob') about the size of a pie plate (10' screen), that can only be seen when the projector is showing all "black".

Call their support line, tell them you want to speak with someone in Level II (though often very nice, level I support is not really up to snuff), and chances are they'll take care of you; it just may take a few trips back and forth.

=AirCeej=
post #5942 of 6366
reboot did not help I can see even more lines.. I just wonder how they get corrupted? Is it DMD chip so fragile or the technical design so ******?
post #5943 of 6366
It's not the DLP chip, it has to do with the motherboard or something like that.

It was an issue with the early run of HC3800's, but Mits seemed to have fixed it. In any case, Mits is real good and quick with warranty issues, they'll have you up and running in no time
post #5944 of 6366
Darn. Called mits about the horizontal flickering lines when fed a interlace signal for some reason. Level 2 said without hesitation to call a # that was for MWC and said they need to 'modify' the motherboard. He asked the firmware (7). I hope this goes good. I tried to figure it out with diferent settings and then had a shutdown. I have 230 hours. and luckly it is still nder warrenty because i got it back when they had the lamp rebate and ave only started using it 3 month ago.
post #5945 of 6366
Quote:
Originally Posted by fleaman View Post

I have more....thanks to gohastings used sales and blockbusters used sales

I am up to 89+ Blu-Rays now (counting sets as 1). Not that I am competing - but how many more do I have to get ? I really need to stop - and just enjoy.

2 more great concert recommendations on blu-ray - sound and picture quality
Adele Live at Royal Albert Hall
Billy Joel live at Shea Stadium (with great guests - including Paul McCartney)

Here are some other good blu-rays to enjoy on your projector ...
Title
Black Book
Black Hawk Down
Chocolat
Flight of the Phoenix
The Godfather 1 and 2
Hot Fuzz
The Illusionist
King Kong
Memoirs of a Geisha
The Prestige
Salt
Space Cowboys
The Sum of All Fears
Thomas Crown Affair
Arthur
Harry Potter and the Deathly Hallows Part 1 & 2
Stranger than Fiction
Out of Africa
Colverfield
Crouching Tiger Hidden Dragon
Lord of the Rings Trilogy
Pirates of the Caribbean - At Worlds End
Star Trek Wrath of Khan
post #5946 of 6366
Everyone / thing looks like smurfs on mine now... I looked but haven't seen this mentioned, had to put my old HC1500 back to work.
post #5947 of 6366
Just sent my HC3800 out for service. Getting horizontial lines of different colors went started. Doesn't happen all the time. Is this a firmware issue or motherboard? Doesn't matter what the input is. Going to be a long couple weeks without it lol

Thanks!
post #5948 of 6366
Not firmware.

How many hrs were on it?
post #5949 of 6366
Quote:
Originally Posted by fleaman View Post

Not firmware.

How many hrs were on it?

Not sure, maybe 800? The blue usage bar wasn't even 1/4 shown. I did it since I got it and figured I'd send it in before the warranty expired. Never had any shutdown issues.
post #5950 of 6366
Sit closer to your tv. At least mine died in the spring...
post #5951 of 6366
Quote:
Originally Posted by truwarrior22 View Post

I did it since I got it and figured I'd send it in before the warranty expired. Never had any shutdown issues.

You mean you've had this issue on and off since you got the HC3800?

Yeah, that was an issue with some early units, it's been resolved and it's a 'must' to send it in before the warranty runs out
post #5952 of 6366
Quote:
Originally Posted by gregoryperkins View Post

Sit closer to your tv. At least mine died in the spring...

post #5953 of 6366
Quote:
Originally Posted by fleaman View Post

You mean you've had this issue on and off since you got the HC3800?

Yeah, that was an issue with some early units, it's been resolved and it's a 'must' to send it in before the warranty runs out

Yes, been like that for almost 2 years. I don't use it that often, but it's a pain turning it on and off 2-4 times to get it to work right. On it's way to CA right now, take forever shipping out there lol
post #5954 of 6366
Ok, that's why I asked how many hrs on it in the first place, since this issue was a problem early on, but fixed, so I thought you might of only put a hundred hrs on it or something.

But you also had the problem early on, just never sent it in (until now). Makes more sense now.
post #5955 of 6366
Quote:
Originally Posted by qx56 View Post

Darn. Called mits about the horizontal flickering lines when fed a interlace signal for some reason. Level 2 said without hesitation to call a # that was for MWC and said they need to 'modify' the motherboard. He asked the firmware (7). I hope this goes good. I tried to figure it out with diferent settings and then had a shutdown. I have 230 hours. and luckly it is still nder warrenty because i got it back when they had the lamp rebate and ave only started using it 3 month ago.

Well got it back quick turn around that's good. Kinda pissed they wraped it and the stuff scratched it. Anyways the lines in 1080I are gone but I guess the losing sync in 24hz must be "normal" because it is still doing that and I asked them to fix that. Funny because the packing slip the sent back says fixed sync issue. Also I have no idea why they would, but they
changed the firmware from 7 to 6 odd but what do I know. So I guess 1080p 60hz it is. any others have coments on this.
post #5956 of 6366
Quote:
Originally Posted by qx56 View Post

So I guess 1080p 60hz it is. any others have coments on this.

Try adjusting the HDMI cable length settings in the HC3800 menu if you haven't already. Look at post #2 in this thread for instructions> http://www.avsforum.com/avs-vb/showthread.php?t=1331261
post #5957 of 6366
Quote:
Originally Posted by qx56 View Post

Well got it back quick turn around that's good. Kinda pissed they wraped it and the stuff scratched it. Anyways the lines in 1080I are gone but I guess the losing sync in 24hz must be "normal" because it is still doing that and I asked them to fix that. Funny because the packing slip the sent back says fixed sync issue. Also I have no idea why they would, but they
changed the firmware from 7 to 6 odd but what do I know. So I guess 1080p 60hz it is. any others have coments on this.

Are you sure it's your projector? When they replaced mine, it went from a 3xxx to a 1xxx, I think version 7 and that was nearly 2 years ago. If I wanted my exact projector back, it would have taken longer.
post #5958 of 6366
Its mine, the hours and the ser# are the same. I have tryed all the cable settings. I almost wonder if I was to get a newer faster bluray player if it would not loose sync. When I switch from
movie to the menu then previews and such it takes my old player a while and it seems to be on the longer waits that it does it. Anyone with faster players still have this problem.
post #5959 of 6366
Mine is hooked up through an av receiver, it locks pretty quickly. Some signals aren't as strong as others. My older Pioneer receiver had problems with this projector, but Yamahas worked fine with the same cables.
post #5960 of 6366
i have my yamaha 567 set to through also tried 1080p but then the 67 menu is all bouncy. what is yours set to
post #5961 of 6366
Well. Got a new bd player and still does it. I also swear that its fan is louder than before. I don't know what too say. this thing is awsome but rhis drives me nuts
post #5962 of 6366
Quote:
Originally Posted by qx56 View Post

i have my yamaha 567 set to through also tried 1080p but then the 67 menu is all bouncy. what is yours set to

I assume you tried bypassing the receiver completely (hooking your blu ray player direct to the HC3800), to eliminate that being the issue?
post #5963 of 6366
Yes I had it hooked up direct in my old room also when I first got it and same thing. Didn't think much of it til I hooked it up in the new room.
post #5964 of 6366
Hi all

3700 hours now...got the flashing 'replace bulb' message now. Almost 2 years of ownership with zero issues to this day.

To those that got the extra bulb offer....if you'd like to sell it and get some extra cash, please PM me. I'm willing to do $200 paypal'ed.

Need a bulb pretty soon before the unit shuts off totally .

Thanks
-Sandeep
post #5965 of 6366
My HC 3800 unit is approaching 2.000 hours of use and I'm seeing some light flickering in the image. It's like the power is failing, but very subtle. It's there and then it's gone, just like this.

It did happen in the two last movies I watched, and always in the second part of the movie. I don't know if it's has some relation with the lamp or it's a bug in the mecanism. Someone experienced this problem or can guess what it is?
post #5966 of 6366
Quote:
Originally Posted by QUATERMAIN View Post

My HC 3800 unit is approaching 2.000 hours of use and I'm seeing some light flickering in the image. It's like the power is failing, but very subtle. It's there and then it's gone, just like this.

It did happen in the two last movies I watched, and always in the second part of the movie. I don't know if it's has some relation with the lamp or it's a bug in the mecanism. Someone experienced this problem or can guess what it is?

If you're normally in low lamp, run it in high lamp mode for a few hrs (or vice versa if you're normally in high lamp).

When you switch back it should be fine.
post #5967 of 6366
Quote:
Originally Posted by fleaman View Post

If you're normally in low lamp, run it in high lamp mode for a few hrs (or vice versa if you're normally in high lamp).

When you switch back it should be fine.

Thanks, I'll try it later!
post #5968 of 6366
I posted about this awhile back thinking the HC3800 was having a problem connecting to the PS3 over 24 feet of HDMI, but spent more time trying "process of elimination" to get a clearer understanding of what is happening. AND, this is probably the wrong thread to post it in since it seems to be more of a BD issue rather than a HC3800 one.

Here's the scoop:
I get white flashes or flickers on the projected image during Blu-ray source material in scenes with alot of dark images, especially night scenes. They are there at the exact same time stamp of the material and only on the recorded material, not outside it in the letterbox black bars of the recorded material. I can actually pause the BD player on a flash and it will hold it there. We discussed this on here before and most comments thought it was a connection issue causing digital dropout. It does not appear to be anything with connections and I will explain that in a second. If I knew what the flashes were called I could Google it perhaps with better success. NOW, here's what I have done to narrow it down:

I played the exact same three BD discs on two different displays with two different BD players and with several different HDMI cables and component cables. Here are the results:
First, the cables and BD players made no difference whatsoever. HDMI, component, 6 feet, 24 feet, direct connect, through a switcher or not, PS3 or cheap Magnavox BD player mattered not. Nothing I did with the length of the run, the type of cables (HDMI or component) or what player or even what display made it go away. Only dumbing down the image at the BD player to 720p made it go away - mostly. It only happens on certain Blu rays and only in images with dark material. It is blatantly obvious on the 144 inch display that I have the HC3800 shooting. It seems to be getting worse as a problem (more BD discs with it) with the more current Blu rays out there. DVDs, games and OTA HD signals never do it, only BD. And more so with the more current BDs.

The difference in the severity of the artifact from the 50 inch plasma or projected at 144 inches from HC3800 display seemed only to be due to the size difference. Ya know, make the picture bigger and everything is magnified...like these flashes. Hence why this may be the wrong thread for this. And maybe why I am having a hard time finding others with this issue. It is not "really" an issue on the 50 inch plasma. But shoot 144 inch image and it is a BIG problem.

Anyhow, the only way I found to make the flashes disappear was to dumb down the output. Drop the BD player's (both of them) output to 720p (from 1080i, p or p/24) and the flashes become almost undetectable on the 144 inch display. They are a complete non-issue on the 50 inch plasma...but they are still there if you really try hard to see them, letting me know that they are not truly gone, just a non-issue at anything smaller than 51 inches.
On the 144 inch display of the HC3800 the flashes are extremely distracting on some BD sources if I output at anything over 720p.

So, I have dropped the output of all my BD players to 720p, including the PS3. Too many times, especially of late, I am hosting a movie and in a dark scene (like the bar scene in Captain America, the tiger night attack in BBC's Earth and most of Super 8 since the entire movie is shot WAY TOO DARK) these distracting white flashes happen. I spent an entire day trying every single connection and setting you could imagine with all these cables, players and displays and I am 100% confident that this is a BD issue, not even an HDMI issue. But what is it and why? And please, sorry for posting it here, but this is my projector and if I'm having these issues and thought it was the HC3800 at first then I bet others have too. I am confident that it is a common BD artifact that is only magnified by the 144 inch image of the HC3800 and therefore probably not noticeable to the masses with much smaller displays.

Please advise if you know what this apparent BD ONLY issue seems to be and thank you.
post #5969 of 6366
mp06011999,

Can you photograph a scene which displays this issue and attach it to a post here? That might help others (including myself) to recognize the problem who might simply not be noticing it in their own systems.

Sadly(?) I didn't see similar flashes on my setup -- neither in the bar scene in CA nor in Super8. My screen is only 60" wide, though, and I have my BD player configured to generate 1080i (the cable length is too long to deliver reliable 1080p to the projector without a repeater).

The fact that you don't see sparklies in the upper and lower black bands of widescreen movies implies that the flashes are not due to signal degradation in the cables.

Your description really sounds like the video noise you're seeing is due to a poor signal coming off the BD disc itself. From what you say, the flashes would seem to be present in the signal recorded on the discs, especially if the white flashes always are in the same place when you review a particular scene. Pixels which are present on the disc but lost during playback are supposed to be repaired by the error correcting codes designed into the BD video and playback electronics.

Downgrading BD's native 1080 signal to 720p forces the player to blend video scanlines together. I'd expect this to disguise white flashes originating from the discs.

I assume you've tried gently cleaning the discs, and that they aren't scratched.
post #5970 of 6366
Nothing that I've seen. I did have some problems with one av amp, a pioneer 1020, it would not pass adequate signal on to my projector when it went through an a/b switch. It worked fine on the Yamaha that I had before it, the one that replaced it had dual hdmi, so there was no need for the a/b.

If it's going through a receiver, try taking that out of the equation and run directly from the bd player.

Your problems only seem to happen on bd and 1080p, so you are at maximum bitrate coming down the pipe.
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