Official Mitsubishi HC5 Owners Thread - Page 23 - AVS Forum
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post #661 of 689 Old 09-12-2014, 02:14 AM - Thread Starter
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One last thing for you to test. Put an full-screen signal with 0% white (pure black). Grab a piece of paper, come up to the projector and let it project on a paper. I'm afraid the panels on your projector are degrading.
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post #662 of 689 Old 09-12-2014, 02:16 AM
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Quote:
Originally Posted by Elix View Post
One last thing for you to test. Put an full-screen signal with 0% white (pure black). Grab a piece of paper, come up to the projector and let it project on a paper. I'm afraid the panels on your projector are degrading.
What should i see when i do this?

I am powering up the projector now.

Also what would the degrading mean?

Thanks
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post #663 of 689 Old 09-12-2014, 02:25 AM
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Quote:
Originally Posted by Elix View Post
One last thing for you to test. Put an full-screen signal with 0% white (pure black). Grab a piece of paper, come up to the projector and let it project on a paper. I'm afraid the panels on your projector are degrading.
What should i see when i do this?

I am powering up the projector now.

Also what would the degrading mean?

while testing I just used a convergence pattern and it is clear that convergence is well off too. Is there a way to fix the convergence and could that be the problem?



Thanks for your help.
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post #664 of 689 Old 09-12-2014, 02:26 AM
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When i put the paper up to the projector i get a multicoloured image. move it a few inches from the lens and it goes black.
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post #665 of 689 Old 09-12-2014, 05:19 AM
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Can anyone help fixing the convergence issues on my HC5 projector?

Googled but can't find any instructions - I am pretty sure there was a sheet in the box explaining how to do it but I am buggered if I can find it.
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post #666 of 689 Old 09-12-2014, 05:38 AM - Thread Starter
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There's an option in the menu for convergence. It's called Pixel Adjust iirc. Pick up the remote and go up close to the screen. It is very easy doing adjustments this way.
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post #667 of 689 Old 09-12-2014, 05:42 AM
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Thanks will give it a try. What did you make of my test with the white paper? Should it show multi coloured on the black screen?

Not sure why convergence has change so much since the test I did initially but it is massively out so hopefully this will fix it.
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post #668 of 689 Old 09-12-2014, 07:16 AM
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I used the pixel adjustment and I have got a bit of improvement. Unfortunately the problem is not uniform so changing one number has a positive effect on part of the screen but not on another.

I am sure there was an addendum in the box with a sheet of paper on how to do the convergence on the pj itself. It was something like hold enter when switching on but I cannot remember exactly. Has anyone got got the sheet and can enlighten me with the right button to press?
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post #669 of 689 Old 09-12-2014, 08:12 AM - Thread Starter
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You can only shift panels in 1 pixel increments. And the shift isn't necessarily uniform across the screen. So you should choose settings that show less fringing overall.

The test showed you that panels in your projector are degrading, unfortunately. The best you can do is contact the company you've bought it from. The sad fact is Mitsubishi has stopped producing projectors so I don't know if they still do support currently.
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post #670 of 689 Old 09-12-2014, 12:05 PM
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out of interest what should the test show?

Is there a repair to this kind of problem and what is the likelihood of failure as it does not effect normal viewing at the moment. Would a new bulb solve the problem?

Sorry for all the questions but I am just trying to understand the issue.
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post #671 of 689 Old 09-12-2014, 12:59 PM - Thread Starter
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This wasn't really a test. It's just a way to magnify the problem. Should be useful if you want to make a point to whomever you're going to show this. Out of interest, how much use does the projector have?

Bulb won't solve the problem, I'm afraid. Only replacing the panels (or the whole optical path).
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post #672 of 689 Old 09-12-2014, 01:42 PM
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Quote:
Originally Posted by Elix View Post
This wasn't really a test. It's just a way to magnify the problem. Should be useful if you want to make a point to whomever you're going to show this. Out of interest, how much use does the projector have?

Bulb won't solve the problem, I'm afraid. Only replacing the panels (or the whole optical path).
just short of 800 hrs use. It was an ebay so unlikely to get recourse.

what should the test show in case seller wants an explanation?

is there other possible reasons?

Also have you got the manual which explains the convergence reset you can do on power up or have i imagined it?
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post #673 of 689 Old 09-14-2014, 01:22 PM
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Anyone else help with this issue?

In particular the questions i can't get an answer to in regards the convergence reset on the hc5 ( i am sure there was a sheet in the box explaining how to do this with a few button presses) and also what the paper in front of the black screen on the projector should show.

I am planning emailing the ebay seller who i go ti t from tomorrow so any advise and help would be greatly appreciated. Any idea how much a repair might cost for the degrading panels etc..
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post #674 of 689 Old 09-16-2014, 08:13 AM
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Hi, i noticed a "strange" behauvior on my HC5 when i calibrated the VPR...setting red values at lowers IRE at 0 makes black parts of the picture to have a lot of sparkling red dots

Dots desappears completely if red values are 1 ore more

Probably it doesn't "understand" a value of 0

Just to report it if somebody has the same problem
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post #675 of 689 Old 09-18-2014, 06:06 AM
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I have been enjoying the HC-5 and was thinking of moving to a step up in projector. Is
the HW55ES the next step up or would that be a sideways move?

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post #676 of 689 Old 09-18-2014, 06:25 AM
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Quote:
Originally Posted by greg1292 View Post
I have been enjoying the HC-5 and was thinking of moving to a step up in projector. Is
the HW55ES the next step up or would that be a sideways move?
In my opinion, it would be a step backward
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post #677 of 689 Old 09-18-2014, 06:43 AM
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Yeah, even with my issues it still by far the best picture i can find for 1080p pj at £1200 (what i paid)

I just need to find out how much a repair might be if the issue gets worse.
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post #678 of 689 Old 09-18-2014, 07:26 AM - Thread Starter
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In my opinion, it would be a step backward
You will gain in some things:
1) Brightness
2) 3D performance
3) Gaming performance
4) Less noisy (though I wouldn't call HC5 a noisy projector)
5) Reality creation? Don't know how much of an advantage that is. Some people prefer not to use it.

But as far as PQ goes for 2D this will be a sideways move (if not a backward one, like Qualunquemente said). HC5 has 4 times higher native contrast as well as better lens. It is still one of the best bang for the buck projectors.
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post #679 of 689 Old 09-18-2014, 07:58 AM
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I will move from HC5 only for a SIM2 Nero3
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post #680 of 689 Old 09-18-2014, 08:30 AM
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Quote:
Originally Posted by Elix View Post
You will gain in some things:
1) Brightness
2) 3D performance
3) Gaming performance
4) Less noisy (though I wouldn't call HC5 a noisy projector)
5) Reality creation? Don't know how much of an advantage that is. Some people prefer not to use it.

But as far as PQ goes for 2D this will be a sideways move (if not a backward one, like Qualunquemente said). HC5 has 4 times higher native contrast as well as better lens. It is still one of the best bang for the buck projectors.
Your right the picture is mesmerizing. I keep looking for
the grass is greener projector but for the 1000.00 I paid for it there really is nothing better under 4K. I am going to order a Seymour screen but which one I don't know?
"Ambient-Visionaire2.1none56"nomoderate50°
2xWFixed1.3none56"nomoderate70°
1.6xWFixed1.2none56"nosevere45°
2xWFixed
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post #681 of 689 Old 09-18-2014, 01:43 PM - Thread Starter
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I know nothing about those screens. While some gain is always good there are usually some drawbacks/compromises, as always. For a bat cave the best choice are reference unity gain screens (like Stewart Studiotek 100) as they are the most transparent ones, without any visible structure, sparkling and with most uniform viewing angles. It all depends on your setup.
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post #682 of 689 Old 09-18-2014, 05:22 PM
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Elix thanks for the insight I am currently using S-i-l-v-e-r DIY screen
with good results in a total light controlled bat cave. Looking to upgrade my screen and like the silver or grey based screens just having a hard time trying to decide my best option under 800.00.
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post #683 of 689 Old 09-18-2014, 10:18 PM - Thread Starter
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If you already have a projector and a screen for a frame of reference, I can only advise you to order screen samples. The best way to judge a screen is to see it yourself in your place. It is better to pay for a shipping cost for a screen sample than have a buyer's regret later.
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post #684 of 689 Old 09-19-2014, 12:01 PM
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Seymour Ambient Visionary 1.4 will have in 10 day's samples looked to best we will see.

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post #685 of 689 Old 09-20-2014, 08:08 AM
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JKP .8 gain screen is the the best I have ever seen!!!!!!

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post #686 of 689 Old 09-20-2014, 08:26 AM
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JKP .8 gain screen is the the best I have ever seen!!!!!!
Had the 1.1 Jkp and was nice but I want to read the sports page and watch tv
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post #687 of 689 Old 09-20-2014, 09:54 AM
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Had the 1.1 Jkp and was nice but I want to read the sports page and watch tv

JKP should only be used in a dedicated theater with complete darkness, its truly a reference screen and gives you the " looking out the window look". How high of a gain are you thinking about going?

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post #688 of 689 Old 09-20-2014, 11:23 AM
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Quote:
Originally Posted by Mike Butny View Post
JKP should only be used in a dedicated theater with complete darkness, its truly a reference screen and gives you the " looking out the window look". How high of a gain are you thinking about going?
Jon said 1.4 for my room setup. Going run the HC5 in low power mode should
work well 103" from 12 feet
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post #689 of 689 Old 09-26-2014, 05:20 AM
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Quote:
Originally Posted by greg1292 View Post
Quote:
Originally Posted by Mike Butny View Post
JKP should only be used in a dedicated theater with complete darkness, its truly a reference screen and gives you the " looking out the window look". How high of a gain are you thinking about going?
Jon said 1.4 for my room setup. Going run the HC5 in low power mode should
work well 103" from 12 feet
I have approx 500hrs on my hc5 on a 140"falcon 2.40:1 diy curved screen (using an anamorphic lens) and still have the lamp on low and iris 2 clicks above lowest setting. I'm guessing anyone coming from a crt like me will have no issues with the light output of this pj.

Last edited by armstrr; 09-26-2014 at 05:21 AM.
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