Offical JVC DLA-RS4810 Owners Thread - Page 67 - AVS Forum | Home Theater Discussions And Reviews
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Old 05-29-2016, 01:30 PM
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Well...I'm trying to follow all the "details" in the HD Fury Thread and the Posts by Manni01 as he too is looking for a solution like me .
I've not quite finished the entire Thread but this Post caught my eye today...

"At the moment, I have a JVC X500 projector, which doesn't have native 4K panels even if it accepts native 4K content and displays it in faux-K using e-shift. As it doesn't support HDCP 2.2 or HDR either, I would like to get the 4K24 HDR 10bits BT2020 4:2:0 (or 4:4:4 if chroma is already upscaled by the player, such as the Samsung) from a UHD Bluray player and convert it to 2K24 8bits 4:4:4 SDR for my 1080p display. This would allow to make use of the fact that the chroma resolution in UHD Bluray 4:2:0 content is 1080p, hence this would give us an excellent 1080p 4:4:4 quality in 8bits, which should be fine with a good dithering as we're not using BT2020 or PQ Gamma. On a screen size such as mine (88" diag 16/9), even from my fairly close 1.2SW sitting distance, I would much rather take a native 1080p 4:4:4 content, even at 8bits (not even using eshift to upscale it) than a 4K resolution than needs eshift to work, causing a loss of sharpness on my non native 4K display."

This was a Post by Manni01 to HDFury for suggestions to the HD Fury Integral Product . This is why I'm a little excited by this . The Company is taking all kinds of suggestions and implementing them on a weekly basis . They are also intending on building a Scaler into the Integral at a future date .

I'm just looking for a solution to not being able to Upgrade without winning the Lottery . This Tech looks promising .

Scott......................

"Home Theatre is a Journey , not a Destination "
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Old 05-29-2016, 01:35 PM
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Manni is now using an RS500.


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Old 05-29-2016, 02:47 PM
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Quote:
Originally Posted by Scott_R_K View Post
Well...I'm trying to follow all the "details" in the HD Fury Thread and the Posts by Manni01 as he too is looking for a solution like me .
I've not quite finished the entire Thread but this Post caught my eye today...

"At the moment, I have a JVC X500 projector, which doesn't have native 4K panels even if it accepts native 4K content and displays it in faux-K using e-shift. As it doesn't support HDCP 2.2 or HDR either, I would like to get the 4K24 HDR 10bits BT2020 4:2:0 (or 4:4:4 if chroma is already upscaled by the player, such as the Samsung) from a UHD Bluray player and convert it to 2K24 8bits 4:4:4 SDR for my 1080p display. This would allow to make use of the fact that the chroma resolution in UHD Bluray 4:2:0 content is 1080p, hence this would give us an excellent 1080p 4:4:4 quality in 8bits, which should be fine with a good dithering as we're not using BT2020 or PQ Gamma. On a screen size such as mine (88" diag 16/9), even from my fairly close 1.2SW sitting distance, I would much rather take a native 1080p 4:4:4 content, even at 8bits (not even using eshift to upscale it) than a 4K resolution than needs eshift to work, causing a loss of sharpness on my non native 4K display."

This was a Post by Manni01 to HDFury for suggestions to the HD Fury Integral Product . This is why I'm a little excited by this . The Company is taking all kinds of suggestions and implementing them on a weekly basis . They are also intending on building a Scaler into the Integral at a future date .

I'm just looking for a solution to not being able to Upgrade without winning the Lottery . This Tech looks promising .

Scott......................
It sounds like he's asking HD Fury to make some changes to their product to enable this. It would give him double the chroma resolution vs standard Blu-Ray.

That would be advantageous on paper, but could you really see any difference on actual program material? I seriously doubt it.
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Old 06-02-2016, 06:09 PM
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Adjusting Convergence,

So I recently acquired an X55RBU. I have seen that convergence is a subject talked about quite a bit. Never having a LCD, LCOS display, I have never witnessed the shortcomings of this technology, nor would I know how to properly adjust it. Can anyone give me any pointers or a guide on how to properly assess or adjust convergence?

Thank You
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Old 06-03-2016, 06:09 AM
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You really don't want to adjust convergence as you lose pixel resolution unless you move one full pixel...but most units don't require that large of a change. You can do the small zonal adjustments if an area is really bad and you see color fringing in content - so it could be worth the compromise of less resolution. But in general, it's best to just leave it unless it becomes noticeable and distracting on content.


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Old 07-02-2016, 12:08 PM
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So for a couple of weeks I have tried IRIS @ -15, the lamp I have has 1600 hours on it. Iris @ -7,or -8 seems a lot better, this is on low lamp power mode. If I buy a new lamp, can I go back to -15 iris and still have a comparably bright image to -7, -8? Screen is 1.1 gain, dark walls, blacks out curtains etc. Thanks.
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Old 07-03-2016, 07:27 AM
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A new lamp will allow you to obtain the same light output you had before...until it starts to age again.


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Old 07-05-2016, 12:17 PM
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Anyone have a step by step lens memory setup 16:9 and 2.35 on a 2.35 screen?

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Old 07-05-2016, 12:23 PM
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Quote:
Originally Posted by tbase1 View Post
Anyone have a step by step lens memory setup 16:9 and 2.35 on a 2.35 screen?
I'm using lens memory with my 2:35 screen. What do you mean "step by step"?


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Old 07-05-2016, 12:58 PM
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getting the 16:9 to fit a scope screen. Is this done via zooming and masking the sides?

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Old 07-05-2016, 01:06 PM
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Yes, it's done my zooming and then saving the memory. I have three zoom memories: scope, 1:85, and 1:78.

I don't bother masking for 16x9 content, but a number of people do.


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Old 07-07-2016, 07:21 AM
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As a old A-Lens owner I always fit the 16:9 vertical and fit the horizontal with the lens to a scope screen. With that being said, should I zoom the entire screen and mask all four sides?

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Old 07-07-2016, 12:02 PM
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I'm not sure regarding the A-Lens. What are you trying to accomplish with it? I find just using the zoom method works great.


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Old 08-15-2016, 08:47 PM
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I just posted this in the general $3000.00+ forum, but found a dedicated area here, and ham hoping someone may know something:

I purchased a JVC DLA-RS4810 projector in September of 2013 and it has been a great performer. A few months ago, I had to replace the lamp (thankfully at the time I purchased it JVC was including a new spare lamp). Everything has been perfect since then until tonight. When the projector came on there was a bluish cast to all the highlighted and detailed areas of the picture. Everything else, the sharpness, the other colors, is perfect. What happened?

I just noticed that my warranty is good for three years, so at least this happened ahead of that, but I have no idea what's going on. Any expertise or assistance would be greatly appreciated. Thank you.

JC
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Old 08-16-2016, 09:35 AM
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It sounds like something with the panel/blue chip. I assume it happens on all sources?


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Old 09-12-2016, 05:23 AM
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RS4810 Gamma and 4K Profile Issues

I had been using an x30 for a couple of years, and recently picked up a used RS4810 supposedly for an upgrade. Unfortunately there are two issues with it that I cannot resolve:

1. The projector is very dim - my light meter shows about 1/3 of the brightness of the x30, both running in the default Cinema mode. The problem persisted even after replacing the lamp with a known good one, and doing a factory reset. Finally, I noticed that setting the 4K Profile to Off would give me the normal brightness at 100% White. Does that make any sense? I can't find any discussions on the forum regarding the 4K profiles affecting the brightness.

2. Even with the 4K Off and the projector running at normal brightness for 100% white, the blacks are severely crushed. HCFR shows a gamma of 3.6 at the low end, and 1.2 at the high end. I was able to calibrate it to 2.2, but that involves some very drastic adjustments of the custom gamma curve, and I'm concerned about posterization that this may have caused. There is a JVC Auto Calibration program that works with newer (or higher) JVC models, which would largely take care of this in the firmware, but the program does not work with the RS4810.

[Follow-up EDIT 9/22/2016]: The post-calibration results are close to perfect, see post #2005. The black crush is completely gone with no trace of posterization that I was previously concerned about.

Any help on how to address these issues would be greatly appreciated.

Last edited by Dominic Chan; 09-22-2016 at 07:30 AM.
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Old 09-12-2016, 05:55 AM
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First question. Have you played with the iris?

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Old 09-12-2016, 05:56 AM
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This is not a known problem with these projectors. So something is amiss

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Old 09-12-2016, 05:57 AM
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Also how about your settings in your player?

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Old 09-12-2016, 07:46 AM
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You can use Calman on the RS4810, but I don't think it will address your issues. Turning eshift on or off makes no difference for brightness on my unit.


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Old 09-12-2016, 09:46 AM
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You can use Calman on the RS4810, but I don't think it will address your issues. Turning eshift on or off makes no difference for brightness on my unit.
Mine either.

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Old 09-22-2016, 04:41 AM
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Hey Everyone,

Bought this unit used, and the one issue I have is that with the eshift turned on, the lamp dims significantly. The seller of the unit was honest about this, but I'm hoping there is a way I can fix this issue. Has anyone encountered this before with 4k eshift engaged?
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Old 09-22-2016, 05:17 AM
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Hey Everyone,

Bought this unit used, and the one issue I have is that with the eshift turned on, the lamp dims significantly. The seller of the unit was honest about this, but I'm hoping there is a way I can fix this issue. Has anyone encountered this before with 4k eshift engaged?
Look a few posts before yours. That person has the same problem. Pm him or ask in here what he has found.

I know that mine doesn't exhibit this problem. So don't know what to say.

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Old 09-22-2016, 06:28 AM
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Look a few posts before yours. That person has the same problem. Pm him or ask in here what he has found.

I know that mine doesn't exhibit this problem. So don't know what to say.

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Interesting...I actually bought the unit from Dominic. Didn't realize there was the other issue with the black level.
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Old 09-22-2016, 07:23 AM
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Interesting...I actually bought the unit from Dominic. Didn't realize there was the other issue with the black level.
There is no issue with black level. The "crushed black" I mentioned in the previous post was pre-calibration. I'm attaching the results after calibration here; they are close to "textbook perfect".
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Last edited by Dominic Chan; 09-22-2016 at 07:32 AM.
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Old 09-22-2016, 07:32 AM
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There is no issue with black level. The "crushed black" I mentioned in the previous post was pre-calibration. I'm attaching the results after calibration here; they are close to perfect.
Excellent thank you sir! (Whew!)
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Old 09-22-2016, 08:01 AM
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Did you ever figure out what was causing the the e-shift brightness drop?

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