Official JVC - 20LTD - RS640 (x990/x9900) - RS540 (X790/x7900) - Owners Thread - Page 373 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 31171Likes
Reply
 
Thread Tools
post #11161 of 12012 Old 03-04-2019, 09:26 PM
Advanced Member
 
mkohman's Avatar
 
Join Date: Jun 2009
Location: London, United Kingdom
Posts: 769
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 398 Post(s)
Liked: 340
Hi Guys,


Apologies if this is a silly question.. I have a JVC x9900 (RS640) and I have a 2.39:1 aspect ration screen.. Currently I use zoom from the projector and overshoot the image to fit scope movies and I do not see any black bars due to the room being dark and the picture is fantastic.


I have seen a Panamorph A484SYS motorised system with the lens and a JVC bracket for sale in the UK for a decent price £1000 and was wondering would I benefit from using this with my RS640 or is there not really much need since the lens zoom and lens shift works so well?


Would really appreciate some advice on this especially those who have an anamorphic lens and has tried both ways .. Many thanks
mkohman is offline  
Sponsored Links
Advertisement
 
post #11162 of 12012 Old 03-04-2019, 11:22 PM
AVS Forum Addicted Member
Industry Insider
 
Cleveland Plasma's Avatar
 
Join Date: Jun 2005
Location: Cleveland, Ohio
Posts: 24,024
Mentioned: 75 Post(s)
Tagged: 1 Thread(s)
Quoted: 6405 Post(s)
Liked: 6399
Quote:
Originally Posted by bytebuster View Post
Guys, where can i purchase the replacement lamp for a 540? Also, whats the model number for the lamp?
DLA-RS540U uses the PKL2615U lamp. Can be bought from any JVC dealer. Sometimes there are deals thru random websites as well...
Reddig likes this.
Cleveland Plasma is online now  
post #11163 of 12012 Old 03-05-2019, 05:29 PM
AVS Forum Special Member
 
Tom Riddle's Avatar
 
Join Date: May 2010
Location: Greater Houston Area - Texas
Posts: 1,608
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 682 Post(s)
Liked: 548
Quote:
Originally Posted by mkohman View Post
Hi Guys,


Apologies if this is a silly question.. I have a JVC x9900 (RS640) and I have a 2.39:1 aspect ration screen.. Currently I use zoom from the projector and overshoot the image to fit scope movies and I do not see any black bars due to the room being dark and the picture is fantastic.


I have seen a Panamorph A484SYS motorised system with the lens and a JVC bracket for sale in the UK for a decent price £1000 and was wondering would I benefit from using this with my RS640 or is there not really much need since the lens zoom and lens shift works so well?


Would really appreciate some advice on this especially those who have an anamorphic lens and has tried both ways .. Many thanks
I believe you get a 20-30% uptick in brightness with the lens, which would be worth it to me.
mkohman likes this.

Routh Family Theater - My Dedicated Home Theater Build - 7.1.4 Atmos Setup
Seymour AV 100" Electronic Masking Screen - Klipsch RF-7 II's, RC-64 II, RS-62 II's, RS-52 II's, CDT-5650 II-C x 4 - PSA V3600I Sub
Marantz AV7704 with TK421 Modification - Panasonic UBD 820
Emotiva XPA -7 & XPA-5 - Sony XBR-75x940c with Ideal-Lume Panelight (Living Room)
Tom Riddle is offline  
Sponsored Links
Advertisement
 
post #11164 of 12012 Old 03-05-2019, 05:35 PM
Advanced Member
 
mkohman's Avatar
 
Join Date: Jun 2009
Location: London, United Kingdom
Posts: 769
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 398 Post(s)
Liked: 340
Quote:
Originally Posted by Tom Riddle View Post
I believe you get a 20-30% uptick in brightness with the lens, which would be worth it to me.
Thanks.. Do you have one? If so which model? Also can you please post some pics with it in place and how it shows the picture on screen thank you..

Sent from my SM-N960F using Tapatalk
mkohman is offline  
post #11165 of 12012 Old 03-05-2019, 05:45 PM
AVS Forum Special Member
 
Tom Riddle's Avatar
 
Join Date: May 2010
Location: Greater Houston Area - Texas
Posts: 1,608
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 682 Post(s)
Liked: 548
Quote:
Originally Posted by mkohman View Post
Thanks.. Do you have one? If so which model? Also can you please post some pics with it in place and how it shows the picture on screen thank you..

Sent from my SM-N960F using Tapatalk
No, I have a 16x9 screen with electronic masking.

I did look into a 2:35:1 fixed screen, but ultimately decided against it due to the screen size I could get, as well as the price of the lens. All the lenses I found we almost double the price of the 540.

I just remember from my research that you got a good increase in brightness.
mkohman likes this.

Routh Family Theater - My Dedicated Home Theater Build - 7.1.4 Atmos Setup
Seymour AV 100" Electronic Masking Screen - Klipsch RF-7 II's, RC-64 II, RS-62 II's, RS-52 II's, CDT-5650 II-C x 4 - PSA V3600I Sub
Marantz AV7704 with TK421 Modification - Panasonic UBD 820
Emotiva XPA -7 & XPA-5 - Sony XBR-75x940c with Ideal-Lume Panelight (Living Room)
Tom Riddle is offline  
post #11166 of 12012 Old 03-06-2019, 06:52 AM
Advanced Member
 
Digione's Avatar
 
Join Date: Dec 2002
Location: New Jersey
Posts: 778
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 104 Post(s)
Liked: 79
Quote:
Originally Posted by mkohman View Post
Hi Guys,


Apologies if this is a silly question.. I have a JVC x9900 (RS640) and I have a 2.39:1 aspect ration screen.. Currently I use zoom from the projector and overshoot the image to fit scope movies and I do not see any black bars due to the room being dark and the picture is fantastic.


I have seen a Panamorph A484SYS motorised system with the lens and a JVC bracket for sale in the UK for a decent price £1000 and was wondering would I benefit from using this with my RS640 or is there not really much need since the lens zoom and lens shift works so well?


Would really appreciate some advice on this especially those who have an anamorphic lens and has tried both ways .. Many thanks



I use the motorised Panamorph UH380 with my RS640 and I get about 25% more brightness with it when compared to zooming. You also get an uptick in resolution as you are now using all your panels pixels. There are several minor down sides:
  1. You will have a very small amount of geometric distortion at the top and bottom image edges that you can zoom off the screen.
  2. My 380 slightly softens the pixel edges (see 3 below)
  3. It creates a small amount of chromatic aberration on the LHS of my screen that I have to use the individual panel area alignment to remove.
  4. The 380 is not ideally suited to the JVC as depending how it is setup it can produce a reflection back into the lens that can (in my case) only just be seen with white titles on a black background ...if you look really hard. Models after the 380 (480 and above) do not have this problem. There is a mod for the 380 if it is a real issue.
Despite all the above I prefer the improved brightness and resolution with the lens in. I sit at 12 feet from a 2:35:1 screen with a 115" diagonal and cannot see any loss of resolution or softening of the image with the lens in or out.


Sounds like a good deal.
John Schlarb and mkohman like this.
Digione is offline  
post #11167 of 12012 Old 03-06-2019, 06:59 AM
Advanced Member
 
mkohman's Avatar
 
Join Date: Jun 2009
Location: London, United Kingdom
Posts: 769
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 398 Post(s)
Liked: 340
Quote:
Originally Posted by Digione View Post
I use the motorised Panamorph UH380 with my RS640 and I get about 25% more brightness with it when compared to zooming. You also get an uptick in resolution as you are now using all your panels pixels. There are several minor down sides:
  1. You will have a very small amount of geometric distortion at the top and bottom image edges that you can zoom off the screen.
  2. My 380 slightly softens the pixel edges (see 3 below)
  3. It creates a small amount of chromatic aberration on the LHS of my screen that I have to use the individual panel area alignment to remove.
  4. The 380 is not ideally suited to the JVC as depending how it is setup it can produce a reflection back into the lens that can (in my case) only just be seen with white titles on a black background ...if you look really hard. Models after the 380 (480 and above) do not have this problem. There is a mod for the 380 if it is a real issue.
Despite all the above I prefer the improved brightness and resolution with the lens in. I sit at 12 feet from a 2:35:1 screen with a 115" diagonal and cannot see any loss of resolution or softening of the image with the lens in or out.


Sounds like a good deal.
The only issues I have is I have never used an anamorphic lens and the one he is selling is a panamorph a484sys with the bracket for jvc and the lens.. I think he is asking for £1200 will I have issues with setup? I mean my projector is approx 6m away from my screen.. Not sure how it all works will it fit my 135 scope screen perfectly? Thank you..

Sent from my SM-N960F using Tapatalk
mkohman is offline  
post #11168 of 12012 Old 03-06-2019, 08:55 AM
AVS Forum Special Member
 
ScottAvery's Avatar
 
Join Date: Mar 2002
Location: Great Falls, VA
Posts: 1,649
Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked: 183
Quote:
Originally Posted by mkohman View Post
The only issues I have is I have never used an anamorphic lens and the one he is selling is a panamorph a484sys with the bracket for jvc and the lens.. I think he is asking for £1200 will I have issues with setup? I mean my projector is approx 6m away from my screen.. Not sure how it all works will it fit my 135 scope screen perfectly? Thank you..

Sent from my SM-N960F using Tapatalk
If you can currently project a 16x9 image on your screen (pillar boxed) then you can definitely use a lens to get to 2.37 instead of zooming. At closer throw you might see significant distortion but you have plenty of throw in your install. Check out the CIH forum for more specific threads on these topics.
ScottAvery is online now  
post #11169 of 12012 Old 03-06-2019, 09:00 AM
Advanced Member
 
Digione's Avatar
 
Join Date: Dec 2002
Location: New Jersey
Posts: 778
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 104 Post(s)
Liked: 79
Quote:
Originally Posted by mkohman View Post
The only issues I have is I have never used an anamorphic lens and the one he is selling is a panamorph a484sys with the bracket for jvc and the lens.. I think he is asking for £1200 will I have issues with setup? I mean my projector is approx 6m away from my screen.. Not sure how it all works will it fit my 135 scope screen perfectly? Thank you..

Sent from my SM-N960F using Tapatalk

I cannot find that model number anywhere on line so I assume that it is a UH480 with bracket. First you need to make sure that the supplied bracket fits your projector. At 6m you are plenty far enough away to keep the geometrical distortion to its minimum. Your projector needs to be at least 1.6 times the width of your screen away from it. There used to be a calculator to determine optimum lens placement on the Panamorph site but I cannot find it any longer. It will never be a "perfect" fit. You will always have to adjust your zoom to remove any geometrical distortion that remains. Also even Panamorph recommend using panel convergence to optimize any lens chromatic aberrations.
Physically adjusting the lens is not difficult to optimize the image and distortions if your projector is on the center line of the screen and ideally at the top of the screen. It should come with instructions or maybe they are still on line somewhere.
Digione is offline  
post #11170 of 12012 Old 03-06-2019, 12:18 PM
AVS Forum Special Member
 
ddigler's Avatar
 
Join Date: May 2013
Posts: 1,826
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 986 Post(s)
Liked: 455
Hey all. Can someone tell me what 4:2:2 chroma is and does the RS640 support it?

Will I see a big dif setting Apple TV from 4:2:0 to 4:2:2 on my rs640 when viewing 4k HDR on 140" diag 2.35 screen?

I believe I will need some new cables to make it work and am trying to determine if it will make a big difference or not...

Thanks in advance for any help!
ddigler is offline  
post #11171 of 12012 Old 03-06-2019, 12:21 PM
AVS Forum Special Member
 
thrillcat's Avatar
 
Join Date: Mar 2013
Location: Ames, Iowa
Posts: 1,306
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 527 Post(s)
Liked: 493
Quote:
Originally Posted by ddigler View Post
Hey all. Can someone tell me what 4:2:2 chroma is and does the RS640 support it?

Will I see a big dif setting Apple TV from 4:2:0 to 4:2:2 on my rs640 when viewing 4k HDR on 140" diag 2.35 screen?

I believe I will need some new cables to make it work and am trying to determine if it will make a big difference or not...

Thanks in advance for any help!
At this point it is anything BUT a "big" difference streaming on the AppleTV. I have it set to 4:2:2 (115" diag 2:1 screen) and I'd be lying if I said I really noticed anything.

I'm sure if I did some back to back comparisons I might be able to notice it, but I'd say for streaming, it's not imperative. If you were talking about your blu-ray player I'd be more apt to say buy the cable and do it.
ddigler likes this.

I love my iPhone, but it will never replace my turntable. I've never seen Titanic OR XXXXXXXXX. Alexa is a stripper name.

The Cinema 1858 Remodel Thread
thrillcat is offline  
post #11172 of 12012 Old 03-06-2019, 12:26 PM
AVS Forum Special Member
 
ScottAvery's Avatar
 
Join Date: Mar 2002
Location: Great Falls, VA
Posts: 1,649
Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked: 183
Quote:
Originally Posted by ddigler View Post
Hey all. Can someone tell me what 4:2:2 chroma is and does the RS640 support it?

Will I see a big dif setting Apple TV from 4:2:0 to 4:2:2 on my rs640 when viewing 4k HDR on 140" diag 2.35 screen?

I believe I will need some new cables to make it work and am trying to determine if it will make a big difference or not...

Thanks in advance for any help!
Some of the ATV 4K settings only apply to the UI, not the content played, and I think this may be one of them. See the first post of the ATV thread, if you can manage to decipher it.
ddigler likes this.
ScottAvery is online now  
post #11173 of 12012 Old 03-06-2019, 12:29 PM
AVS Forum Special Member
 
ddigler's Avatar
 
Join Date: May 2013
Posts: 1,826
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 986 Post(s)
Liked: 455
Quote:
Originally Posted by thrillcat View Post
At this point it is anything BUT a "big" difference streaming on the AppleTV. I have it set to 4:2:2 (115" diag 2:1 screen) and I'd be lying if I said I really noticed anything.

I'm sure if I did some back to back comparisons I might be able to notice it, but I'd say for streaming, it's not imperative. If you were talking about your blu-ray player I'd be more apt to say buy the cable and do it.
Very helpful thank you.

I'll have to check my Panasonic 820 to see if I'm taking advantage of 4:2:2. I'll bail on buying new cables to make 4:2:2 work on Apple TV.
thrillcat likes this.
ddigler is offline  
post #11174 of 12012 Old 03-06-2019, 02:37 PM
Senior Member
 
jwhart's Avatar
 
Join Date: Dec 2007
Location: Baton Rouge, LA USA
Posts: 470
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 214 Post(s)
Liked: 78
Quote:
Originally Posted by ddigler View Post
Very helpful thank you.

I'll have to check my Panasonic 820 to see if I'm taking advantage of 4:2:2. I'll bail on buying new cables to make 4:2:2 work on Apple TV.
I'm using the ATV 4K with the Monoprice's certified HDMI's which work fine, even for 4:4:4 https://www.newegg.com/Product/Produ...E&gclsrc=aw.ds
ddigler likes this.
jwhart is offline  
post #11175 of 12012 Old 03-06-2019, 02:43 PM
AVS Forum Special Member
 
Join Date: Dec 2014
Location: Mississauga, ON, Canada
Posts: 6,445
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 4496 Post(s)
Liked: 1684
Quote:
Originally Posted by jwhart View Post
I'm using the ATV 4K with the Monoprice's certified HDMI's which work fine, even for 4:4:4
4K 4:4:4 only works for SDR, not HDR.
ddigler likes this.
Dominic Chan is online now  
post #11176 of 12012 Old 03-06-2019, 02:51 PM
Senior Member
 
jwhart's Avatar
 
Join Date: Dec 2007
Location: Baton Rouge, LA USA
Posts: 470
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 214 Post(s)
Liked: 78
Quote:
Originally Posted by Dominic Chan View Post
4K 4:4:4 only works for SDR, not HDR.
Correct! I was only pointing out that the cables meet the spec.
ddigler likes this.
jwhart is offline  
post #11177 of 12012 Old 03-07-2019, 10:28 AM
Member
 
jmeitz's Avatar
 
Join Date: May 2001
Location: Eureka, MO
Posts: 167
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 28
I was curious if any of you have gone from a epson 5040ub to a 790 and did you notice a big difference? I get it handled 18gbs vs 10. But image quality is there a big difference. Using Panasonic ub820.
jmeitz is offline  
post #11178 of 12012 Old 03-07-2019, 11:53 AM
AVS Forum Special Member
 
Join Date: Dec 2014
Location: Mississauga, ON, Canada
Posts: 6,445
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 4496 Post(s)
Liked: 1684
Quote:
Originally Posted by jmeitz View Post
I was curious if any of you have gone from a epson 5040ub to a 790 and did you notice a big difference? I get it handled 18gbs vs 10. But image quality is there a big difference. Using Panasonic ub820.
I had an Epson 5040UB for about a month and sold it, as I found the JVCs to be superior in everything that matters to me - black level (obviously), motion handling, flexibility (usability of the custom gamma adjustments, loading and saving custom curves), etc. I don’t even find the Epson to be brighter in any of the calibrated modes.

Last edited by Dominic Chan; 03-07-2019 at 11:57 AM.
Dominic Chan is online now  
post #11179 of 12012 Old 03-07-2019, 11:58 AM
Member
 
jmeitz's Avatar
 
Join Date: May 2001
Location: Eureka, MO
Posts: 167
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 28
Quote:
Originally Posted by Dominic Chan View Post
Quote:
Originally Posted by jmeitz View Post
I was curious if any of you have gone from a epson 5040ub to a 790 and did you notice a big difference? I get it handled 18gbs vs 10. But image quality is there a big difference. Using Panasonic ub820.
I had an Epson 5040UB for about a month and sold it, as I found the JVCs to be superior in everything that matters to me - black level (obviously), motion handling, flexibility (usability of the custom gamma adjustments, loading and saving custom curves), etc. I don’t even find the Epson to be brighter in any of the calibrated modes.
Thanks for the input. I appreciate it.

Yamaha Aventage 3070 * Emotiva xpa5
Polk LSIM 707, 706, 703, 702, Rci85 and 65
Stereo Integrity HT18 (2) * Inuke 6000dsp
Panasonic UB820 * JVC NX5 * Silver Ticket 120” thin bezel
jmeitz is offline  
post #11180 of 12012 Old 03-07-2019, 12:27 PM
Senior Member
 
rlarsen462's Avatar
 
Join Date: Oct 2006
Location: Denver, CO
Posts: 473
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 235 Post(s)
Liked: 78
So I got the new unit autocal'd and everything more or less set up the way my defective (iris) unit was before I had to ship it back. The only thing I had a question about:

The final step of installing the Javs curves with Arve tool (I used the v3 1200 and 4000nit curves) is setting the black levels with the "bbo" command. Since Javs instructions were written I know there have both been a change in which level you should target for clipping, and apparently in the file itself, I am using the Black_Clipping_2_HDR10 file from Masciola tools. It used to have a 77 level, now it goes 68, 72, 76, 80.

Basically my questions are this, what black level should I be targeting (which bar should be clipping?), and I also noticed that no matter how low I set the bbo value (like I could put in 0.0000001), there was a point at which it just didn't seem to get any darker, I could not get the 72 bar to stop clipping no matter how far I went even though I wanted to get to the 76 level as full black/clipping. Anyone else experience this?

Thanks in advance, sorry if I am not being very clear with the terminology.
rlarsen462 is offline  
post #11181 of 12012 Old 03-07-2019, 05:02 PM
AVS Forum Special Member
 
Aztar35's Avatar
 
Join Date: Jul 2016
Posts: 2,866
Mentioned: 28 Post(s)
Tagged: 0 Thread(s)
Quoted: 2283 Post(s)
Liked: 1208
Quote:
Originally Posted by rlarsen462 View Post
Appreciate the perspective, however it's tough when it's the 990 which was supposed to have "hand picked parts, etc"...and I could compare it to my previous 990 which had much sharper focus across the screen from the exact same mounting location, let alone the right side. Some variation in any product is to be expected but it really seems like JVC's are all over the place...is this normal with other brands of high end projectors as well? I guess I never really asked that.
Hi! It's been a while. So... have you tried to use lens shift to catch a different portion of the lens to see how that looks?

EDIT: I just saw Mark's reply to you.

Last edited by Aztar35; 03-07-2019 at 05:05 PM.
Aztar35 is online now  
post #11182 of 12012 Old 03-07-2019, 05:09 PM
Senior Member
 
rlarsen462's Avatar
 
Join Date: Oct 2006
Location: Denver, CO
Posts: 473
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 235 Post(s)
Liked: 78
Quote:
Originally Posted by Aztar35 View Post
Hi! It's been a while. So... have you tried to use lens shift to catch a different portion of the lens to see how that looks?

EDIT: I just saw Mark's reply to you.
I did, it was sharper when shifted all the way left, however I can't feasibly move the projector mounting location to accommodate...still jealous of the quality of your example given you had practically the first one!

However, whether it's my mind or not, I feel like it's getting somewhat sharper after it's heat cycled 50 or so times. I almost feel like my last one did this too. Probably my imagination, and the memory of the sharpness level of my previous unit fading.

Have watched a couple of movies now and I'm okay with the unit for now. I am just hoping it doesn't have another iris failure. I am being pretty delicate with the adjustments so hopefully that will help it survive.

I am still interested in the answer to my above post about setting the black levels with the "bbo" command, that's all I have left to be fairly sure this one is calibrated about the same as my previous defective one.
rlarsen462 is offline  
post #11183 of 12012 Old 03-07-2019, 07:26 PM
AVS Forum Special Member
 
ScottAvery's Avatar
 
Join Date: Mar 2002
Location: Great Falls, VA
Posts: 1,649
Mentioned: 23 Post(s)
Tagged: 0 Thread(s)
Quoted: 631 Post(s)
Liked: 183
Quote:
Originally Posted by rlarsen462 View Post

I am still interested in the answer to my above post about setting the black levels with the "bbo" command, that's all I have left to be fairly sure this one is calibrated about the same as my previous defective one.
With the newer patterns bar 68 should be barely visible -- blinking if the pattern is not paused.

You may be looking at an old download. Javs updated the instructions, with pictures, in the post: https://www.avsforum.com/forum/24-di...l#post55203652
rlarsen462 likes this.
ScottAvery is online now  
post #11184 of 12012 Old 03-07-2019, 07:37 PM
AVS Forum Special Member
 
Javs's Avatar
 
Join Date: Dec 2012
Location: Sydney
Posts: 7,849
Mentioned: 475 Post(s)
Tagged: 0 Thread(s)
Quoted: 6791 Post(s)
Liked: 6418
Quote:
Originally Posted by rlarsen462 View Post
So I got the new unit autocal'd and everything more or less set up the way my defective (iris) unit was before I had to ship it back. The only thing I had a question about:

The final step of installing the Javs curves with Arve tool (I used the v3 1200 and 4000nit curves) is setting the black levels with the "bbo" command. Since Javs instructions were written I know there have both been a change in which level you should target for clipping, and apparently in the file itself, I am using the Black_Clipping_2_HDR10 file from Masciola tools. It used to have a 77 level, now it goes 68, 72, 76, 80.

Basically my questions are this, what black level should I be targeting (which bar should be clipping?), and I also noticed that no matter how low I set the bbo value (like I could put in 0.0000001), there was a point at which it just didn't seem to get any darker, I could not get the 72 bar to stop clipping no matter how far I went even though I wanted to get to the 76 level as full black/clipping. Anyone else experience this?

Thanks in advance, sorry if I am not being very clear with the terminology.
Set black to 64, so bar 68 is blinking. Its been that way since my V2 curves.
rlarsen462 likes this.

JVC X9500 (RS620) | 120" 16:9 | Marantz AV7702 MkII | Emotiva XPA-7 | DIY Modular Towers | DIY TPL-150 Surrounds | DIY Atmos | DIY 18" Subs
-
MadVR Settings | UHD Waveform Analysis | Arve Tool Instructions + V3 Javs Curves
Javs is online now  
post #11185 of 12012 Old 03-08-2019, 07:22 AM
Member
 
vantage78's Avatar
 
Join Date: Nov 2006
Posts: 194
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 147 Post(s)
Liked: 40
Quote:
Originally Posted by thrillcat View Post
Im not trying to say anyone is making things up. I just wonder if there is variance between units.

The one odd thing I do notice is every 45 minutes or so, I hear a crack from the projector like the plastic case is shifting with temperature change. Anyone else had that?



Sent from my iPhone using Tapatalk
I hear the same crack on my RS640 as well. I assumed the same; temp change affecting the components. Hopefully it’s normal??
Reddig likes this.
vantage78 is offline  
post #11186 of 12012 Old 03-08-2019, 07:33 AM
Member
 
Stereo2's Avatar
 
Join Date: Mar 2011
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Liked: 10
Question about sound when switching to 4K

A few days ago I purchased a new RS540 and love it. This is my first JVC projector and I am impressed with the beautiful picture it displays with the impressive blacks / contrast. The lens focus is sharp, no bright corners, convergence is right on, the factory picture settings for THX and Cinema look excellent and the projector is very quiet in the low lamp setting. What is most surprising, is that the e-shift sound is almost impossible to hear, even when the lamp is set to low and the cooling fan is running quietly. To hear any sound coming from the e-shift I have to get within 12 inches of the projector, that is mounted on the ceiling, and than it's only a slight sound that is basically concealed by the low sound of the fan.

I do have one question. When a 4K signal is supplied to the projector it makes a notable mechanical sound like a switch is thrown as it changes from 1080p to 4K. It make that same switching sound when it switches back to 1080p. This is the only time it makes that sound. Is this normal?


Before buying this RS540 I bought a Sony VPL-VW295ES. I was disappointed with the black levels and the audible noise from the cooling fan, even on it's low lamp setting. It was returned.




Stereo2 is offline  
post #11187 of 12012 Old 03-08-2019, 07:37 AM
Advanced Member
 
coxy2416's Avatar
 
Join Date: Mar 2010
Location: London, Ontario, Canada
Posts: 670
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 557 Post(s)
Liked: 327
Quote:
Originally Posted by Stereo2 View Post
A few days ago I purchased a new RS540 and love it. This is my first JVC projector and I am impressed with the beautiful picture it displays with the impressive blacks / contrast. The lens focus is sharp, no bright corners, convergence is right on, the factory picture settings for THX and Cinema look excellent and the projector is very quiet in the low lamp setting. What is most surprising, is that the e-shift sound is almost impossible to hear, even when the lamp is set to low and the cooling fan is running quietly. To hear any sound coming from the e-shift I have to get within 12 inches of the projector, that is mounted on the ceiling, and than it's only a slight sound that is basically concealed by the low sound of the fan.

I do have one question. When a 4K signal is supplied to the projector it makes a notable mechanical sound like a switch is thrown as it changes from 1080p to 4K. It make that same switching sound when it switches back to 1080p. This is the only time it makes that sound. Is this normal?


Before buying this RS540 I bought a Sony VPL-VW295ES. I was disappointed with the black levels and the audible noise from the cooling fan, even on it's low lamp setting. It was returned.




Congrats on the projector, sounds like you received a great sample as these projectors can very alot.

The sound you are hearing is normal and I believe it is the eShift engaging and disengaging.
coxy2416 is offline  
post #11188 of 12012 Old 03-08-2019, 07:42 AM
AVS Forum Special Member
 
Join Date: Dec 2014
Location: Mississauga, ON, Canada
Posts: 6,445
Mentioned: 121 Post(s)
Tagged: 0 Thread(s)
Quoted: 4496 Post(s)
Liked: 1684
Quote:
Originally Posted by Stereo2 View Post
I do have one question. When a 4K signal is supplied to the projector it makes a notable mechanical sound like a switch is thrown as it changes from 1080p to 4K. It make that same switching sound when it switches back to 1080p. This is the only time it makes that sound. Is this normal?
This is normal and is the result of the colour filter snapping in/out. If you switch the HDR Picture Mode to use the HDR profile instead of the BT.2020 Profile, the filter will not be activated.
markmon1 likes this.

Last edited by Dominic Chan; 03-08-2019 at 07:51 AM.
Dominic Chan is online now  
post #11189 of 12012 Old 03-08-2019, 07:44 AM
Member
 
Stereo2's Avatar
 
Join Date: Mar 2011
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Liked: 10
Quote:
Originally Posted by Dominic Chan View Post
This is normal and is the result of the colour filter snapping in/out. If you switch the HDR Picture Mode to use HDR profile instead of the BT.2020 Profile, the filter will not be activated.
Thank you for the fast reply!
Stereo2 is offline  
post #11190 of 12012 Old 03-09-2019, 07:05 AM
AVS Forum Special Member
 
johng's Avatar
 
Join Date: Feb 2000
Location: California's Redwood Coast
Posts: 1,394
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked: 107
Quote:
Originally Posted by Dominic Chan View Post
This is normal and is the result of the colour filter snapping in/out. If you switch the HDR Picture Mode to use the HDR profile instead of the BT.2020 Profile, the filter will not be activated.
Funny that this should be asked because I was going to ask something similar, but reverse. My X790r (RS-540) has about 1200 hours on it. I recently noticed that I'm no longer hearing the color filter snapping in/out, but the image still looks good. I'm wondering if any of you have found that the 'snapping' sound goes away as the machine ages?

Good Viewing,John G  JVC DLA-X790 Projector, Vutec 110" (16x9) Bright White Screen, Oppo UDP-203 region free MOD disc player, Zappiti Mini4K HDR, Synology DS418 NAS, Yamaha RX-A2070 AVR, Toshiba 1250 NTSC-PAL Region Free BR Player, 7 Paradigm Reference spkrs w Dual Subs,   & Yamaha 6600 External Amp
johng is offline  
Sponsored Links
Advertisement
 
Reply Digital Hi-End Projectors - $3,000+ USD MSRP

Tags
Jvc , xbox one x

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off