Official JVC - 20LTD - RS640 (x990/x9900) - RS540 (X790/x7900) - Owners Thread - Page 125 - AVS Forum | Home Theater Discussions And Reviews
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post #3721 of 12567 Old 12-27-2017, 05:41 PM
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Blue stuck pixels are not uncommon - I've seen them on JVCs as well as on Epson LS10000s. I've seen stuck green ones too. One of my former RS500s had a green pixel that was on steroids; it was so bright that I could see it with the lights on from my seating position with colored content being displayed on my 1.0 gain screen.
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post #3722 of 12567 Old 12-27-2017, 05:41 PM
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Originally Posted by Craig Peer View Post
Dunkirk looks amazing, but I loved GOTG2 too - fun movie. Thanks for the review. Good to have you back Mark.

" I doubt that a Spitfire was ever able to shoot down a Stuka with an engine out a 1000' " - I read somewhere that it symbolized his choice between trying to escape, landing on the beach where he could join the other troops being rescued, or sacrificing his escape to save more men. Dunkirk was excellent - can't wait to watch it again too!
Thanks for the kind words Craig! I love the GOTG2 presentation in UHD HDR. Some of the dark details in the interior ship scenes coupled with the vivid vivid colors is really striking. I think it's one of my top 10 best HDR demo disks. Which is funny because I didn't care for the movie when I saw it at the cinema.

My back ordered Nolan collection just came in. I can't wait to see Dunkirk on the RS-640 now!!!
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post #3723 of 12567 Old 12-27-2017, 05:43 PM
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Quote:
Originally Posted by DavidHir View Post
Blue stuck pixels are not uncommon - I've seen them on JVCs as well as on Epson LS10000s. I've seen stuck green ones too. One of my former RS500s had a green pixel that was on steroids; it was so bright that I could see it with the lights on from my seating position with colored content being displayed on my 1.0 gain screen.
Top of the line units with hand selected components should not have a defect such as this. My RS-35 was great in every respect (no bright corners, good convergence, focus, etc.). I was hoping that the RS-640 would be this good. It's one pixel short of perfection lol.
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post #3724 of 12567 Old 12-27-2017, 05:47 PM
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Originally Posted by John Ballentine View Post
If I had time I would give my 640 a glowing review too, even though I have slightly bright lower left and right corners. I've watched 80+ movies now (pushing 200 hours), and this is my only complaint. And it helps that they are rarely ever seen during actual content. But nothings perfect and I too would be afraid to trade it in for another unit that might be worse in this regard, or not have as good focus or convergence or a stuck pixel or excessive streaking or e-shift noise or?
Sorry John, you're not getting off this easily. You watch as much classics and B&W movies as anyone on this forum and I'm curious to hear your thoughts of how the RS-640 performs with this content. Do you enable eshift with 1080p?
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post #3725 of 12567 Old 12-28-2017, 04:22 AM
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Originally Posted by panman40 View Post
What's the consensus on using superwhite on the JVC's to reveal above white information ?, (blu Ray and TV broadcasts), Thanks.
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Originally Posted by Javs View Post
Can you name a single film that has above white content? ...You night find one in 1000 films having content above there. Leave it off for sure.
To add to what Javs says here, it's also worth noting that using superwhite with video content that is mastered to the 16-235 limited range, which as Javs astutely points out is pretty much all films/movies, will result in both less luminance / 'brightness' (circa 5 - 10% less on average) as well as worsened contrast and raised black floor. Therefore, in short, in all normal circumstances, don't use it for films/movies. Period.

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post #3726 of 12567 Old 12-28-2017, 04:59 AM
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Which projector is better?

JVC RS640 (x990 / x9900) or Sony VPL-VW760ES / 880ES?

JVC:
+ Higher contrast
+ lower price
- Native Full HD with E-shift5

Sony:
+ Native 4K
- Lower constarst
- Higher price

QV: Have JVC already solved a CMD error? Thanks.
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post #3727 of 12567 Old 12-28-2017, 05:35 AM - Thread Starter
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Originally Posted by Tom?? Berka View Post
Which projector is better?

JVC RS640 (x990 / x9900) or Sony VPL-VW760ES / 880ES?

JVC:
+ Higher contrast
+ lower price
- Native Full HD with E-shift5

Sony:
+ Native 4K
- Lower constarst
- Higher price
The
QV: Have JVC already solved a CMD error? Thanks.
It really comes down to preferences. Had jvc been doing a better job with quality control with the 640/990/9900, it would be much easier, even a no brainer, to give a thumbs up to those units.

Before I took the plunge for the x990, I seriously considered an import 760es. As I wait the possible return or replacement of my x990 due to quality control issues, if I end up receiving a refund, I will take another look at the sony 4k laser projectors, including a 760 import to save some $$$.

Regarding jvc cmd, while chroma banding was resolved, the fix induced some new issues. There is supposedly a patch in the works to fix the fix.

I have noted the issues I am having with my x990 in this owners thread, but feel free to send me a pm for more details.

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post #3728 of 12567 Old 12-28-2017, 06:02 AM
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Originally Posted by tomáš berka View Post
which projector is better?

Jvc rs640 (x990 / x9900) or sony vpl-vw760es / 880es?
vw760es/880es
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post #3729 of 12567 Old 12-28-2017, 06:15 AM
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Originally Posted by Mark Petersen View Post
As soon as I can tear myself away from viewing UHD HDR movies I plan to experiment with the Arve tool. I also have a HDFury Vertex that I've been using with good results but I want to do more with.
Most JVC projector owners are using the Vertex to enable the DI with 4K material and not have the projector default to Gamma D but I thought it wasn’t needed in the new series. Maybe you are using it for other reasons.
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post #3731 of 12567 Old 12-28-2017, 07:47 AM
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Originally Posted by ARROW-AV View Post
Look what the postman just delivered:



It's late - being red it would have looked good under your Christmas tree ! You going to do any measurements on it ?

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post #3732 of 12567 Old 12-28-2017, 07:52 AM
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Originally Posted by Craig Peer View Post
It's late - being red it would have looked good under your Christmas tree ! You going to do any measurements on it ?
Yes

JVC 20LTD v X9900/RS640 v X9500/RS620 v X7900/RS540 4-way comparison shootout evaluation will be happening shortly...

... After the unboxing which will be happening right now


Last edited by ARROW-AV; 12-28-2017 at 08:06 AM.
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post #3733 of 12567 Old 12-28-2017, 07:56 AM
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Originally Posted by ARROW-AV View Post
Yes

JVC 20LTD v X9900/RS640 v X9500/RS620 v X7900/RS520 4-way comparison shootout evaluation will be happening shortly...

... After the unboxing which will be happening right now

It's like having a 2nd Christmas !
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post #3734 of 12567 Old 12-28-2017, 08:04 AM
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Originally Posted by ARROW-AV View Post
Look what the postman just delivered:



Congrats! ...can't wait to read your findings.
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post #3735 of 12567 Old 12-28-2017, 08:22 AM
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Ya, it is simply amazing what a calibration will do on a projector, even without doing the audio. You want to upgrade your items because you would like some better performance? Think again and hire a good calibrator like Chad B and be amazed at what you have been missing.
I have talked to some audiophile guys. We talked about how they wanted to update there gear, well there gear was good enough. Not going to have a guy blow thousands to get almost no upgrade in performance. I asked if he set up his gear and had it calibrated. He said yep I got it. I said how long did your calibration take, not including setup of you gear. He said 2 hours, I said with Chad B it takes 8 hours....so think again about how well it was done
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Last edited by Cleveland Plasma; 12-28-2017 at 08:27 AM.
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post #3736 of 12567 Old 12-28-2017, 09:39 AM
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Originally Posted by Cleveland Plasma View Post
I have talked to some audiophile guys. We talked about how they wanted to update there gear, well there gear was good enough. Not going to have a guy blow thousands to get almost no upgrade in performance. I asked if he set up his gear and had it calibrated. He said yep I got it. I said how long did your calibration take, not including setup of you gear. He said 2 hours, I said with Chad B it takes 8 hours....so think again about how well it was done


I keep hearing about Chad B the calibration wizard. How much does that run?


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post #3737 of 12567 Old 12-28-2017, 11:06 AM
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I keep hearing about Chad B the calibration wizard. How much does that run?


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Put the price aside for now; first, see if you can get him in your area. I had scheduled with him in the North East when he had his tour here and we were good to go but then he cancelled because he was overbooked. So, make sure he is available in your area.
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post #3738 of 12567 Old 12-28-2017, 11:15 AM
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Originally Posted by rprice54 View Post
I keep hearing about Chad B the calibration wizard. How much does that run?


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For pricing, contact him for the services you are wanting.

http://www.hdtvbychadb.com/contact.html.
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post #3739 of 12567 Old 12-28-2017, 01:11 PM
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But I was a little disappointed at the authenticity of a few of the scenes. As an example, I doubt that a Spitfire was ever able to shoot down a Stuka with an engine out a 1000'.
Yes that was a bit unrealistic. But added to the suspense of it all! Watched your UHD disc yet?
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post #3741 of 12567 Old 12-28-2017, 01:53 PM
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Oh you tease you !
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post #3742 of 12567 Old 12-28-2017, 01:59 PM
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Originally Posted by ARROW-AV View Post
UNBOXING:





- High res pic of the focus screen please!
- Wide open Iris Max Contrast measurement!
- Closed Iris Max Contrast.!
- Max Lumens!

Thanks!
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post #3743 of 12567 Old 12-28-2017, 02:31 PM
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Watched Dunkirk last night. Not sure what I think about the movie itself but it’s the only ‘true’ 4K disc I have at this point. I was super happy with the sharpness and detail. On some of the slow panning scenes, especially the beach and ocean I noticed some flicker. I tried messing with CMD/motion/clear black etc but couldn’t get rid of it. Started to wonder if my bulb was flickering.

Then today I tried it on my cheapo Vizio 4k and the flickering is there too. I guess what I’m seeing is a result of being filmed and not video? But glad it’s not my 540.

Oh, and the contrast/blacks/colors were phenomenal compared to the Vizio- rightfully so. The beach was more white on the 540 and more beige on the TV which was interesting.

Still trying to figure out if I like clear black or not...


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post #3744 of 12567 Old 12-28-2017, 05:50 PM
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I think my RS540 bit the dust this evening, at just over 20 hours on the lamp I received and installed the projector just a week ago.

I had been loving it, a big upgrade over my RS40. Now it has the two blinking lights (x3 times) which it says is "Abnormal Circuit Operation." I will have to call JVC tomorrow. What I think failed is the HDR filter mechanism. When switching between SDR / HDR material I heard this repeated mechanical sound, then it seemed to just give up and turn off. I let it cool down (waited for fans to stop), unplugged it for a while, then tried again. It gave a picture again, but then when switching between SDR / HDR, ran into exactly the same problem.

Can I ask folks what that HDR filter moving into position should sound like? It seemed like the first two days I had it I just heard a click. Then for the last 5 days it's had a (somewhat labored) motor sound... somewhat similar to the lens cover. I'm assuming that was a bad sign and that now that mechanism has totally failed.

And then one other question, is JVC offering advanced replacement on these projectors? I may have to reinstall the RS40, which is going to be a massive downgrade...
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post #3745 of 12567 Old 12-28-2017, 06:11 PM
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Quote:
Originally Posted by JJ7 View Post
I think my RS540 bit the dust this evening, at just over 20 hours on the lamp I received and installed the projector just a week ago.

I had been loving it, a big upgrade over my RS40. Now it has the two blinking lights (x3 times) which it says is "Abnormal Circuit Operation." I will have to call JVC tomorrow. What I think failed is the HDR filter mechanism. When switching between SDR / HDR material I heard this repeated mechanical sound, then it seemed to just give up and turn off. I let it cool down (waited for fans to stop), unplugged it for a while, then tried again. It gave a picture again, but then when switching between SDR / HDR, ran into exactly the same problem.

Can I ask folks what that HDR filter moving into position should sound like? It seemed like the first two days I had it I just heard a click. Then for the last 5 days it's had a (somewhat labored) motor sound... somewhat similar to the lens cover. I'm assuming that was a bad sign and that now that mechanism has totally failed.

And then one other question, is JVC offering advanced replacement on these projectors? I may have to reinstall the RS40, which is going to be a massive downgrade...

Hi, that definitely isn't right. It should be a quick solid 'click' as you heard in the first few days. This is odd, I don't recall hearing about this type of failure before. The filter mechanism has been around for several years.

if you bought from an authorized dealer, you should have access to the advanced replacement option.
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post #3746 of 12567 Old 12-28-2017, 06:21 PM
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Review: JVC RS540

Cleveland AV owner Chris Majoros sent a welcome addition to my home theater recently, and though the time with the new JVC RS540 in my theater was brief due to my work schedule, I have in the last month been able to calibrate several RS540s and 640s in different environments to get a more time tested feel for their overall performance. The RS540 temporarily replaced my JVC RS67 projecting on a 119” 16x9 Da-Lite 2.8 gain High Power screen, a remarkably bright and high quality screen material that has long been discontinued. Source material was a mixture of Blu Ray, DVD, streaming, and UHD Blu Ray from a Sony UBP-X800.

With the introduction of the RS400, 500, and 600 JVC added High Dynamic Range compatibility along with a brighter, more stable light source to their projector line. While out of the box HDR performance of these first generation units was nearly unwatchable, with advancements in calibration and related software eventually came the ability to transform the HDR picture quality into something truly remarkable on those models. However, due to very sluggish sync times and some operational quirks, the process of watching UHD HDR could be a lesson in patience and anger management. Those quirks meant that, in order to enjoy the best HDR picture, the user had to change picture modes from the normal HD mode to one specifically optimized for HDR. Then, after waiting for an abnormally long time for multiple source resyncs, it was necessary to go into the picture menu after the program had started and switch gamma to a custom imported selection. An external adapter from HDFury could eliminate that last gamma selection step, but at the expense of often doubling the sync times.

Those sync times seem to have improved, though they are still longer than that of other displays. I clocked the dropout from about 11 to over 19 seconds on the RS540, possibly depending on lens aperture and other changes between picture modes. Thankfully, the RS540 automatically switches to a picture mode optimized for HDR as soon as it is fed an HDR signal, and it no longer forcibly reverts to a certain gamma selection, making the process infinitely more seamless.

Before calibration:

With only minimal setup (sizing, centering, and focusing the image and reducing the lens aperture for normal HD due to my high gain screen), the RS540’s Blu Ray image was very good, though I was bothered by excessive graininess and an overexposed look to bright objects. Contrast and black levels were outstanding, and color was sufficiently rich and satisfying.

Surprisingly, I had a hard time finding significant flaws in the RS540’s HDR image, although my screen material and size is abnormally bright. In other words, the out of the box HDR tuning worked well on my high gain screen, but more typical setups might struggle to have a satisfyingly bright picture on UHD discs and streaming HDR content.

Gray and white uniformity was excellent. Giving my eyes time to acclimate to black, I could see that the sides were just slightly brighter when the RS540 was displaying a pure black field in a totally dark room. I do not consider that tiny bit of black nonuniformity to be a flaw, since I had to be looking for it under unusual conditions for it to be visible. Overall, I felt this was a very good unit, and it is possible that JVC is doing better at minimizing these bright corner issues. However, one RS640 I calibrated in a different theater had a distinct lighter area, somewhat rectangular or boxy in shape, that was visible in a black field just right of screen center that appeared to be caused by an abnormality in the light engine. Fortunately, it was not visible with content, though it was disappointing to see especially in their top lamp based model.

The RS540’s focus was sharp and uniform; and convergence, though not perfect, was good enough that most users would not be tempted to utilize the Pixel Adjust control to correct it. The 4K Eshift was very quiet, as was the fan in low lamp mode.

Calibration:

Because calibration meters and software report light output in nits or footlamberts rather than lumens, the measured data must be combined with the screen size and gain specification in order to calculate lumen output. The lumens calculation is therefore dependant on an accurate screen gain rating. Within these limitations, I can provide the after calibration lumen output on the RS540 and two others I have calibrated in different home theaters where I had reliable screen data. Keep in mind that the process of calibration tends to reduce output slightly from the out of the box settings in order to achieve an accurate white balance.

1. Review unit: 1220 lumens low lamp no color filter; 1042 lumens low lamp with color filter; 1453 lumens high lamp with color filter
2. Unit #2 : 1675 lumens high lamp no color filter; 1546 lumens high lamp with color filter
3. Unit #3 : 1520 lumens high lamp with color filter

While all of those figures are with very low hours on the lamp, in my experience the recent JVC high power lamps tend to loose little to no brightness over the first thousand hours or so.

Following are the on/off contrast ratio results of the RS540, measured after calibration with a Klein K-10 facing the lens for maximum sensitivity at various zoom and manual lens aperture settings.

Maximum lens zoom:
• aperture -15: 142,286:1
• aperture -10: 77,969:1
• aperture -5: 51,078:1
• aperture 0: 37,160:1
Minimum lens zoom:
• aperture -15: 136,118:1
• aperture -10: 83,837:1
• aperture -5: 63,641:1
• aperture 0: 48,457:1

For those who like JVC’s dynamic aperture feature, it is selectable and functional in the RS540’s HDR mode. This feature physically blocks and reduces the light output dynamically with the picture, giving deeper fades to black and better contrast in very dark movie scenes. However, if it is fully engaged from a fade to black and then a bright image is suddenly displayed, it takes up to two seconds for the bright image to fully flesh out and look right, and it can get tripped up on occasion with certain content. This is not a fault of JVC’s implementation; it is an unavoidable tradeoff when physical gears and motors try to track picture content in real time. Although I generally prefer not to use it, many feel the increase in dynamic contrast ratio is well worth it.

HDR as displayed by a front projector is a balance between satisfying average picture level and compression of highlights; and though the RS540’s factory tuning does a far better balancing act than most other projectors in this regard, it can be improved further through calibration with Arve’s gamma tool and JVC’s Spyder auto calibration. With these tools and then applying conventional ISF calibration with an accurate reference meter (the Spyder used by JVC’s autocal tends to tune the white balance far too warm in my experience), the RS540’s HDR picture can be brightened and highlights tone mapped in a more satisfying manner, while still displaying very deep blacks and contrast.

The RS540’s HDR mode allows a choice between two suitable color profiles, though it prevents using a custom imported color space in HDR mode. The difference between “BT.2020” and “HDR” color space is that “BT.2020” uses a color filter to provide deeper saturation at the expense of some light output, while “HDR” lets a little more light through at the expense of slightly less fleshed out pure colors. This allows some flexibility in calibration.

The RS540 includes a low latency setting for gamers, which did not compromise the performance in any way that I could see or measure. Using it does gray out the Clear Motion Drive frame interpolation setting, but I never prefer to use that feature. The CMD causes banding, as evidenced by rougher grayscale and gamma tracking even with the Spyder autocal procedure done, among other problems.

After Calibration:

The RS540 displayed a wonderful picture with normal HD material. Calibrated to the BT1886 gamma standard, the image was deep, rich in contrast, and had superb shadow detail. It was noticeably smoother and less grainy than what I have seen from the RSx00 and RSx20 series. The overexposed look on bright objects noted before calibration was nearly eradicated, the only remaining traces of it visible just on lower quality sources. Color accuracy was excellent at all brightness levels and skin tones looked very natural with appropriate richness.

HDR for the most part built on those strengths, adding deeper and more lifelike colors and more fine detail. While I had no complaints of the RS540’s before calibration HDR performance thanks to the high brightness allowed by my screen, calibration added a slight but appreciable layer of refinement. In installations with less peak light output, a good HDR calibration could give a welcome brightness boost without compromising blacks or highlights.

Some enthusiasts wonder if UHD is even worth it on these JVCs, since they have native 1080P light engines and use visual tricks to increase the perceived resolution closer to 4K. Interestingly, since the advent of UHD, we’ve come to find that related advancements such as HDR and Wide Color Gamut make more of a dramatic visual improvement than the resolution upgrade itself. Many are eagerly waiting for JVC to combine their currently stunning contrast with a native 4K light engine, but those who choose to wait will be depriving themselves for what will surely be an incremental improvement. The RS540 is, by a comfortable margin, my number one choice in non esoterically priced home theater projectors.
johng, Kabillyhop, RAFEEL and 20 others like this.

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Last edited by Chad B; 12-28-2017 at 07:16 PM. Reason: found RS540 high lamp mode lumens measurement
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post #3747 of 12567 Old 12-28-2017, 06:21 PM
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Before (with lens aperture set to manual) and after measurements. In HDR mode, a meter multiplier of 3.1 was used, so actual peak light output after calibration was 332.5 nits, not the 1030.7 shown.
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Last edited by Chad B; 12-28-2017 at 07:31 PM.
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post #3748 of 12567 Old 12-28-2017, 08:14 PM
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Has anyone done a comparison between the 440 and 540? I'm assuming the 540 is a big upgrade, whereas the 640 isn't nearly as big of an upgrade from the 540. Any thoughts?

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post #3749 of 12567 Old 12-28-2017, 08:45 PM
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Quote:
Originally Posted by JJ7 View Post
I think my RS540 bit the dust this evening, at just over 20 hours on the lamp I received and installed the projector just a week ago.

I had been loving it, a big upgrade over my RS40. Now it has the two blinking lights (x3 times) which it says is "Abnormal Circuit Operation." I will have to call JVC tomorrow. What I think failed is the HDR filter mechanism. When switching between SDR / HDR material I heard this repeated mechanical sound, then it seemed to just give up and turn off. I let it cool down (waited for fans to stop), unplugged it for a while, then tried again. It gave a picture again, but then when switching between SDR / HDR, ran into exactly the same problem.

Can I ask folks what that HDR filter moving into position should sound like? It seemed like the first two days I had it I just heard a click. Then for the last 5 days it's had a (somewhat labored) motor sound... somewhat similar to the lens cover. I'm assuming that was a bad sign and that now that mechanism has totally failed.

And then one other question, is JVC offering advanced replacement on these projectors? I may have to reinstall the RS40, which is going to be a massive downgrade...
I guess it’s actually the aperture/iris having a problem, not the filter. I was using auto 2 for both SDR and HDR content, but set the max aperture to -6 for SDR and 0 for HDR. I just now turned off the dynamic iris and was adjusting it manually. A few positions seem ok, like 0, -1,-14, and -15. But for most of the rest it just keeps whirring back and forth and never stopping. So this actually seems to be a failure of the iris adjustment.

Is the dynamic iris an independent mechanism? I’m wondering if I can keep using that feature, set the max iris to 0 and use the unit in this way pending a replacement...
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post #3750 of 12567 Old 12-29-2017, 08:18 AM
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Quote:
Originally Posted by JJ7 View Post
I think my RS540 bit the dust this evening, at just over 20 hours on the lamp I received and installed the projector just a week ago.

I had been loving it, a big upgrade over my RS40. Now it has the two blinking lights (x3 times) which it says is "Abnormal Circuit Operation." I will have to call JVC tomorrow. What I think failed is the HDR filter mechanism. When switching between SDR / HDR material I heard this repeated mechanical sound, then it seemed to just give up and turn off. I let it cool down (waited for fans to stop), unplugged it for a while, then tried again. It gave a picture again, but then when switching between SDR / HDR, ran into exactly the same problem.

Can I ask folks what that HDR filter moving into position should sound like? It seemed like the first two days I had it I just heard a click. Then for the last 5 days it's had a (somewhat labored) motor sound... somewhat similar to the lens cover. I'm assuming that was a bad sign and that now that mechanism has totally failed.

And then one other question, is JVC offering advanced replacement on these projectors?
I may have to reinstall the RS40, which is going to be a massive downgrade...
Yes, or you can have the one you have repaired if you prefer. I'd take a replacement now I suppose if it were me.

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