Official JVC - 20LTD - RS640 (x990/x9900) - RS540 (X790/x7900) - Owners Thread - Page 429 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 31729Likes
Reply
 
Thread Tools
post #12841 of 12893 Old 11-30-2019, 01:51 PM
Senior Member
 
BobDyl's Avatar
 
Join Date: Nov 2002
Location: California
Posts: 227
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 135 Post(s)
Liked: 117
Official JVC - 20LTD - RS640 (x990/x9900) - RS540 (X790/x7900) - Owners Thread

Quote:
Originally Posted by bobof View Post
Indeed, there are probably other devices you could upgrade to if you wanted to get best native frame rate support (though none without other drawbacks, like lack of Atmos or needing to user 3rd party solutions for auto rate switching)...



The 59.94p playback of 24.0p content though is an interesting one - that content actually looks better to me frame rate converted to 59.94p as the dropped frames pretty much go missing in the 3:2 cadence (even though I generally dislike the 3:2 pulldown). If much more content starts appearing in 24.0p and Apple don't add native support to their devices I think you'll at some point be better off leaving auto framerate off... It's already got to the stage where I don't bother watching new Netflix titles on the ATV4k as I'm pretty sure they'll be "broken"

I match range on the ATV but leave the frame rate matching off. Just can’t stand the constant kludgy resynching.

Here’s my confession: I’m super sensitive to both SOE and frame drops and have never noticed either on the ATV + 540. Content looks great regardless of native frame rate. is doing some superlative video processing here.
bobof likes this.
BobDyl is offline  
Sponsored Links
Advertisement
 
post #12842 of 12893 Old 11-30-2019, 06:09 PM
Senior Member
 
CHUCKCHILLOUT's Avatar
 
Join Date: Jul 2007
Location: Magnolia, Seattle, WA, USA
Posts: 343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 14
HDMI Cables @ 25-35 feet

I am taking delivery on a RS540, I’m looking for where to purchase a long run 25-30 foot 4K cable. I’m also thinking about picking up a Panasonic UB 420 Blu-ray. Thanks
CHUCKCHILLOUT is offline  
post #12843 of 12893 Old 11-30-2019, 08:39 PM - Thread Starter
AVS Forum Special Member
 
Bytehoven's Avatar
 
Join Date: Nov 2002
Posts: 6,803
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked: 1217
Quote:
Originally Posted by CHUCKCHILLOUT View Post
HDMI Cables @ 25-35 feet

I am taking delivery on a RS540, I’m looking for where to purchase a long run 25-30 foot 4K cable. I’m also thinking about picking up a Panasonic UB 420 Blu-ray. Thanks
BB has a great ub420 deal for Black Friday but don't know when it will end. It may carry thru Monday.

You might try Monoprice to see if they run a Cyber Monday deal. I have several older 25' Monoprice passive HDMI cables (24ga Co-Partner Ethernet) which have not given me any problems. But have not tried any of the newer passive HDMI at that length.

JVC DLA-X990 - 128" 2.35 1.3 Gain Screen - X800M2 - UB820 - ATV4K64 - ROKU Ultra - PS4 - XBone
7.1.4 Atmos - Denon X4300H + Denon 3806(LCR) - JBL Control 5 - BIC Sub - Dayton
Bytehoven is offline  
Sponsored Links
Advertisement
 
post #12844 of 12893 Old 12-01-2019, 05:19 AM
Member
 
Join Date: Dec 2018
Location: Dallas, TX
Posts: 54
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Liked: 19
Quote:
Originally Posted by BobDyl View Post
Quote:
Originally Posted by Alex Hindman View Post
I’️m really digging my new RS540, but I have a question for you all. The color seems to be washed out and lighter than I’️d expect on the Apple TV menu. It looks great when watching stuff like the mandalorian or 4K blu rays, but I just want to make sure I am not doing something wrong here. Apologies if this is a dumb question.

In the AppleTV, try this:

Settings/Video and Audio/Format 4K SDR

Settings/Video and Audio/Match Content Range

This will set your main interface to SDR and only trigger HDR when you are watching HDR content. (There will be a short blackout).

Dollars to donuts this solves your issue.
Looks like that did the trick. Thanks man!
BobDyl likes this.
Alex Hindman is offline  
post #12845 of 12893 Old 12-01-2019, 08:51 AM
Advanced Member
 
neo_2009's Avatar
 
Join Date: Mar 2009
Posts: 725
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 358 Post(s)
Liked: 267
Quote:
Originally Posted by CHUCKCHILLOUT View Post
HDMI Cables @ 25-35 feet
I am taking delivery on a RS540, I’m looking for where to purchase a long run 25-30 foot 4K cable.
I'm using this Monoprice Certified Premium High Speed (30ft) with a X7900=RS540, and for regular UHD [email protected], everything works flawlessly.
Never tried anything at 60Hz though ...
Bytehoven and zombie10k like this.
neo_2009 is offline  
post #12846 of 12893 Old 12-01-2019, 11:26 AM
AVS Forum Addicted Member
Industry Insider
 
Cleveland Plasma's Avatar
 
Join Date: Jun 2005
Location: Cleveland, Ohio
Posts: 24,920
Mentioned: 82 Post(s)
Tagged: 1 Thread(s)
Quoted: 6848 Post(s)
Liked: 6845
Quote:
Originally Posted by neo_2009 View Post
I'm using this Monoprice Certified Premium High Speed (30ft) with a X7900=RS540, and for regular UHD [email protected], everything works flawlessly.
Never tried anything at 60Hz though ...
Quote:
Originally Posted by CHUCKCHILLOUT View Post
HDMI Cables @ 25-35 feet

I am taking delivery on a RS540, I’m looking for where to purchase a long run 25-30 foot 4K cable. I’m also thinking about picking up a Panasonic UB 420 Blu-ray. Thanks
Make sure you get a Premium Certified cable, I use the Fiber HDMI RUIPRO Cable. Seems like a member has one that works as well. Not all cables are alike, some will not work out.......
Cleveland Plasma is offline  
post #12847 of 12893 Old 12-01-2019, 11:35 AM
AVS Forum Addicted Member
 
zombie10k's Avatar
 
Join Date: Dec 2007
Posts: 12,956
Mentioned: 169 Post(s)
Tagged: 1 Thread(s)
Quoted: 5452 Post(s)
Liked: 5854
Quote:
Originally Posted by neo_2009 View Post
I'm using this Monoprice Certified Premium High Speed (30ft) with a X7900=RS540, and for regular UHD [email protected], everything works flawlessly.
Never tried anything at 60Hz though ...
These cables are excellent! I have over 50 feet in my av chain and system can handle Bill Lynn's 4K/60 HDR no problem, sync's every time.

i'm glad they made these inexpensive cables, it was a real hassle when UHD was released. with all the expensive cables on the market claiming full 18GB capabilities and many failed.
Bytehoven and neo_2009 like this.
zombie10k is offline  
post #12848 of 12893 Old 12-01-2019, 11:55 AM
AVS Forum Special Member
 
talon95's Avatar
 
Join Date: Oct 2002
Location: Wichita, KS
Posts: 1,557
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 370 Post(s)
Liked: 202
Quote:
Originally Posted by zombie10k View Post
These cables are excellent! I have over 50 feet in my av chain and system can handle Bill Lynn's 4K/60 HDR no problem, sync's every time.

i'm glad they made these inexpensive cables, it was a real hassle when UHD was released. with all the expensive cables on the market claiming full 18GB capabilities and many failed.
Same. I have several others from Amazon mainly that don't work 100% of the time, particularly with my Roku for whatever reason. But these Monoprice cables never fail.
talon95 is online now  
post #12849 of 12893 Old 12-02-2019, 05:57 PM
Member
 
Join Date: Dec 2018
Location: Dallas, TX
Posts: 54
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Liked: 19
I keep hearing a noise coming from the projector (not the fan) that is constant. It sounds like that tone you get on a cable channel with the rainbow colors. Does anyone know if this is normal or should I be concerned?
Alex Hindman is offline  
post #12850 of 12893 Old 12-03-2019, 11:32 AM
Member
 
schm66's Avatar
 
Join Date: Feb 2006
Posts: 113
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
Liked: 25
Quote:
Originally Posted by Alex Hindman View Post
I keep hearing a noise coming from the projector (not the fan) that is constant. It sounds like that tone you get on a cable channel with the rainbow colors. Does anyone know if this is normal or should I be concerned?
My guess is it is the eshift noise. Try turning on and off to see if the noise goes away. You will need to be on non 4k source to turn off. Mine makes a buzzing noise that I can not hear once my sound system kicks in.
schm66 is offline  
post #12851 of 12893 Old 12-03-2019, 05:00 PM
Senior Member
 
CHUCKCHILLOUT's Avatar
 
Join Date: Jul 2007
Location: Magnolia, Seattle, WA, USA
Posts: 343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 14
Quote:
Originally Posted by Bytehoven View Post
BB has a great ub420 deal for Black Friday but don't know when it will end. It may carry thru Monday.

You might try Monoprice to see if they run a Cyber Monday deal. I have several older 25' Monoprice passive HDMI cables (24ga Co-Partner Ethernet) which have not given me any problems. But have not tried any of the newer passive HDMI at that length.
I ended getting the Panasonic 420, plus 25” Monoprice Hoss cable. Silly question, can you upload Arve curves from a Mac? It seems like most are using a PC, which would require a new machine. Thanks everyone.
CHUCKCHILLOUT is offline  
post #12852 of 12893 Old 12-03-2019, 06:02 PM - Thread Starter
AVS Forum Special Member
 
Bytehoven's Avatar
 
Join Date: Nov 2002
Posts: 6,803
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked: 1217
Quote:
Originally Posted by CHUCKCHILLOUT View Post
I ended getting the Panasonic 420, plus 25” Monoprice Hoss cable. Silly question, can you upload Arve curves from a Mac? It seems like most are using a PC, which would require a new machine. Thanks everyone.
Windows is required, but have you consider running a volume with Windows on your Mac? I do it my older MacPro, but that rig has room for a Windows SSD among the 4 internal drive bays.

There are other ways to set up a Windows partition on a large OS X volume, but I by passed the emulation strategies and went with a stand alone Windows volume.

What Mac do you have?

JVC DLA-X990 - 128" 2.35 1.3 Gain Screen - X800M2 - UB820 - ATV4K64 - ROKU Ultra - PS4 - XBone
7.1.4 Atmos - Denon X4300H + Denon 3806(LCR) - JBL Control 5 - BIC Sub - Dayton
Bytehoven is offline  
post #12853 of 12893 Old 12-03-2019, 08:32 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
Quote:
Originally Posted by Dominic Chan View Post
You may be confusing between “custom gamma” and “gamma Autocal”. Custom gamma needs to be loaded (or adjusted using the 12-pt controls) for each slot individually, but that has nothing to do with gamma Autocal which “fixes” the base gamma that applies to all.
Okay, so I ran the actual Gamma Only Autocal with my SpyderPro5 (after doing Log only runs). I was like, my PJ is either going to be back to day one or totally hosed. Guess what, it was totally restored to OOTB picture! What a great moment! I carefully followed the Autocal directions and was hand held by Dominic. Thanks dude! I've attached the "gamma only" after correction chart(s). Perfectly straight line for gamma. And Color Temp chart is all within the red circle now! What an improvement in PQ, killer JVC contrast and deep field is back! Like I said, it looks like day one! Thanks, @Dominic Chan .

Edit: I was able to reduce Manual Iris to -6 from -3 after calibration. Autocal must have restored some brightness. (I was pushing 300 hours on PJ)
Attached Thumbnails
Click image for larger version

Name:	Spyder5Pro - Gamma Correction.png
Views:	36
Size:	795.8 KB
ID:	2649048   Click image for larger version

Name:	Spyder5Pro - Color Profile BT2020 Correction.png
Views:	33
Size:	814.3 KB
ID:	2649050   Click image for larger version

Name:	Spyder5Pro - Color Temp Correction.png
Views:	30
Size:	797.9 KB
ID:	2649052  
Bytehoven and Dominic Chan like this.

Last edited by catav; 12-03-2019 at 08:50 PM.
catav is offline  
post #12854 of 12893 Old 12-03-2019, 08:52 PM
AVS Forum Special Member
 
alebonau's Avatar
 
Join Date: Jan 2006
Location: Land of Contentment :)
Posts: 4,912
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1981 Post(s)
Liked: 1366
Quote:
Originally Posted by zombie10k View Post
Quote:
Originally Posted by neo_2009 View Post
I'm using this Monoprice Certified Premium High Speed (30ft) with a X7900=RS540, and for regular UHD [email protected], everything works flawlessly.
Never tried anything at 60Hz though ...
These cables are excellent! I have over 50 feet in my av chain and system can handle Bill Lynn's 4K/60 HDR no problem, sync's every time.

i'm glad they made these inexpensive cables, it was a real hassle when UHD was released. with all the expensive cables on the market claiming full 18GB capabilities and many failed.
Yep am using them 3ft to 30ft all work a treat ... now if only we had 32ft -10m 😄 I’d use it to for my projector even if my cheapo 10m seems to work to flawlessly 😄

"Technology is a drug. We can't get enough of it."


Welcome to my lounge room :)
alebonau is online now  
post #12855 of 12893 Old 12-04-2019, 09:49 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
With more testing after gamma only Autocal at 300 hours, I came to the conclusion that my gamma was hosed (drooping) a long time ago, maybe 100 -150 hours. Re-watching movies I first watched at those times, they are much better! I would have loved to do a Log only Autocal on day one. Would gamma be a straight line then? Good question, right?

Last edited by catav; 12-04-2019 at 10:11 PM.
catav is offline  
post #12856 of 12893 Old 12-04-2019, 10:08 PM - Thread Starter
AVS Forum Special Member
 
Bytehoven's Avatar
 
Join Date: Nov 2002
Posts: 6,803
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked: 1217
Quote:
Originally Posted by catav View Post
With more testing after gamma only Autocal at 300 hours, I came to the conclusion that my gamma was hosed a long time ago, maybe 100 -150 hours. Re-watching movies I first watched at those times, they are much better! I would have loved to do a Log only Autocal on day one. Would gamma be a straight line then? Good question, right?
Not necessarily. Gamma droop has been reported on new units.
SirMaster and catav like this.

JVC DLA-X990 - 128" 2.35 1.3 Gain Screen - X800M2 - UB820 - ATV4K64 - ROKU Ultra - PS4 - XBone
7.1.4 Atmos - Denon X4300H + Denon 3806(LCR) - JBL Control 5 - BIC Sub - Dayton
Bytehoven is offline  
post #12857 of 12893 Old 12-04-2019, 10:14 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
Quote:
Originally Posted by Bytehoven View Post
Not necessarily. Gamma droop has been reported on new units.
You'd think JVC QC would be more careful out the door with these multi $K machines.

edit: I'm just happy they were mindful to offer Autocal. (Gamma was going to droop eventually) No problems here!
SirMaster likes this.

Last edited by catav; 12-04-2019 at 10:29 PM.
catav is offline  
post #12858 of 12893 Old 12-05-2019, 03:20 AM
Senior Member
 
jj-34's Avatar
 
Join Date: Nov 2009
Location: Montpellier, France
Posts: 320
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 225 Post(s)
Liked: 69
Quote:
Originally Posted by catav View Post
You'd think JVC QC would be more careful out the door with these multi $K machines.

edit: I'm just happy they were mindful to offer Autocal. (Gamma was going to droop eventually) No problems here!
Actually one would expect JVC to do a real initial autocal with a high dollar sensor BEFORE boxing, no ?
catav likes this.
jj-34 is online now  
post #12859 of 12893 Old 12-05-2019, 09:04 AM
cpc
AVS Forum Club Gold
 
cpc's Avatar
 
Join Date: Feb 2001
Location: Toronto,ON,Canada
Posts: 7,401
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 45 Post(s)
Liked: 11
I took a last look at my Sony HW45ES last night and played with the zoom to get a feel for how things are going to look seating distance wise. I see I have <10 hours on the 45ES so hopefully somebody takes this off my hands when I put it up for sale this weekend. Picture looks great for what it is but I will definitely be grateful for deeper blacks and greater contrast on the x790.

Questions.

1) For people who zoom their x790 for 2.35:1 etc. Do you do any masking for the overspill? The black bars should be less visible than the 45ES.

2) Also a question about ansi contrast of the JVC. How do these compare with other projectors? The 285/385 Sony etc. Even the 45ES?

3) What improvements should I see with the JVC x790 in terms of contrast and black levels? Big differences?

If I don't sell the Sony 45ES before I setup the JVC x790 on the ceiling mount I will see if I can compare the two as the Sony is on a shelf at the moment, but, room treatments will be lacking. As an aside, I plan to implement a rather elaborate blackout curtain setup on both sides of the viewing area including the ceiling.

Picking up the JVC this weekend. Pretty excited. Apart from this brief try with the 45ES I haven't really had a home theatre projector setup for 12 years. Screen to follow via shipping. I have a DIY blackout material screen to use for now as I fine tune the setup.

Last edited by cpc; 12-05-2019 at 10:50 AM.
cpc is offline  
post #12860 of 12893 Old 12-05-2019, 04:30 PM
Senior Member
 
CHUCKCHILLOUT's Avatar
 
Join Date: Jul 2007
Location: Magnolia, Seattle, WA, USA
Posts: 343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 14
Quote:
Originally Posted by Bytehoven View Post
Windows is required, but have you consider running a volume with Windows on your Mac? I do it my older MacPro, but that rig has room for a Windows SSD among the 4 internal drive bays.

There are other ways to set up a Windows partition on a large OS X volume, but I by passed the emulation strategies and went with a stand alone Windows volume.

What Mac do you have?
I have a 2013 MacBook Air. Ive contemplated doing a bootcamp install before, but figured I could just get an inexpensive laptop.
CHUCKCHILLOUT is offline  
post #12861 of 12893 Old 12-05-2019, 04:45 PM
Senior Member
 
CHUCKCHILLOUT's Avatar
 
Join Date: Jul 2007
Location: Magnolia, Seattle, WA, USA
Posts: 343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 55 Post(s)
Liked: 14
I've been playing around with settings since I got my RS540 yesterday. Couple of questions/observations.

On a PS4 PRO and display settings do you go automatic, 2160YUV420 or 2160RGB? I've been doing 2160YUV420. I noticed on the PS4 Pro that on Youtube & Amazon Prime I'm getting BT709 +4K but no HDR mode kicking in on the JVC, and no 2084 wide color.

On my Panasonic UB420, I'm getting HDR & Wide Color on Youtube. I also watched The Matrix on 4K Blu-ray. There was very deep blacks, a little grainy/noisy, but I think it is almost part of the look, I could be wrong though.

For HDR, what do most people do before they upload curves and calibrate? Iris at -8 seems really bright to me. It could be blissful ignorance, but this seems pretty bring to me in HDR.

Ive been using an old cable from Amazon and that is working better than the Active cable I purchased from Monoprice, which could not maintain signal.
CHUCKCHILLOUT is offline  
post #12862 of 12893 Old 12-05-2019, 08:44 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
Quote:
Originally Posted by catav View Post
You'd think JVC QC would be more careful out the door with these multi $K machines.

edit: I'm just happy they were mindful to offer Autocal. (Gamma was going to droop eventually) No problems here!
Hey, @SirMaster , good to hear from you. Tonite, I did one more gamma AutoCal, (I know, I'm crazy) paying extreme attention to where the reflection from the Spyder was hitting toward the PJ. I dangled a white piece of paper under the shelf mounted PJ lens. Now, I could see (and position) the exact round Spyder reflection circle, just under the PJ lens. That gave me a warm and fussy feeling. So I re-ran the gamma only calibration and it showed a lowered delta from my first "gamma only" attempt. Oh, boy! I saved the results, and now I'm viewing an even greater planted, 3D looking picture. Thinking about going all the way and diving into CalMan or HCFR software and hardware calibration. (Can you stop me, from all this madness?) Just kidding, I love it!
Bytehoven likes this.

Last edited by catav; 12-05-2019 at 09:00 PM.
catav is offline  
post #12863 of 12893 Old 12-05-2019, 09:03 PM - Thread Starter
AVS Forum Special Member
 
Bytehoven's Avatar
 
Join Date: Nov 2002
Posts: 6,803
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked: 1217
Quote:
Originally Posted by CHUCKCHILLOUT View Post
I have a 2013 MacBook Air. Ive contemplated doing a bootcamp install before, but figured I could just get an inexpensive laptop.
I think that is a good plan. Most, if not all of the software you might use, runs well on older versions of Windows. So despite my Mac Pro Windows option, I have older laptops from when my kids needed to upgrade for their University work.

JVC DLA-X990 - 128" 2.35 1.3 Gain Screen - X800M2 - UB820 - ATV4K64 - ROKU Ultra - PS4 - XBone
7.1.4 Atmos - Denon X4300H + Denon 3806(LCR) - JBL Control 5 - BIC Sub - Dayton
Bytehoven is offline  
post #12864 of 12893 Old 12-05-2019, 09:07 PM - Thread Starter
AVS Forum Special Member
 
Bytehoven's Avatar
 
Join Date: Nov 2002
Posts: 6,803
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked: 1217
Quote:
Originally Posted by catav View Post
Hey, @SirMaster , good to hear from you. Tonite, I did one more gamma AutoCal, (I know, I'm crazy) paying extreme attention to where the reflection from the Spyder was hitting toward the PJ. I dangled a white piece of paper under the shelf mounted PJ lens. Now, I could see (and position) the exact round Spyder reflection circle, just under the PJ lens. That gave me a warm and fussy feeling. So I re-ran the gamma only calibration and it showed a lowered delta from my first "gamma only" attempt. Oh, boy! I saved the results, and now I'm viewing an even greater planted, 3D looking picture. Thinking about going all the way and diving into CalMan or HCFR software and hardware calibration. (Can you stop me, from all this madness?) Just kidding, I love it!
Where on the screen does the Spyder cast a shadow?

Did you position the Spyder such that the 100% white test patterns fall just inside the range of the sensor/software?

JVC DLA-X990 - 128" 2.35 1.3 Gain Screen - X800M2 - UB820 - ATV4K64 - ROKU Ultra - PS4 - XBone
7.1.4 Atmos - Denon X4300H + Denon 3806(LCR) - JBL Control 5 - BIC Sub - Dayton
Bytehoven is offline  
post #12865 of 12893 Old 12-05-2019, 09:26 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
Quote:
Originally Posted by Bytehoven View Post
Where on the screen does the Spyder cast a shadow?

Did you position the Spyder such that the 100% white test patterns fall just inside the range of the sensor/software?

I positioned the Spyder so that it's shadow was centered horizontally/vertically on my scope screen. That would tell me I was centered onto the PJ lens (right?). I paid even more attention to the Spyder optical light reflection back towards the PJ lens. (just under it). Since I was doing a gamma only (no screen involved). It's a very delicate operation. I didn't even walk in the room during calibration!

edit: Oh, and also as close to the PJ, but still inside the orange on screen Autocal box. (you have to run the software to understand what that really means).
Bytehoven and panman40 like this.

Last edited by catav; 12-05-2019 at 09:37 PM.
catav is offline  
post #12866 of 12893 Old 12-05-2019, 10:54 PM
Advanced Member
 
panman40's Avatar
 
Join Date: Jul 2009
Posts: 520
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 337 Post(s)
Liked: 145
Quote:
Originally Posted by catav View Post
I positioned the Spyder so that it's shadow was centered horizontally/vertically on my scope screen. That would tell me I was centered onto the PJ lens (right?). I paid even more attention to the Spyder optical light reflection back towards the PJ lens. (just under it). Since I was doing a gamma only (no screen involved). It's a very delicate operation. I didn't even walk in the room during calibration!

edit: Oh, and also as close to the PJ, but still inside the orange on screen Autocal box. (you have to run the software to understand what that really means).
I haven’t run autocal in a while now, before each run are you reinstating the original file ( if you saved it?).
I think I did the same regarding the reflection of the spyder back on the projector, do you think not having the screen had any effect on the results ?.

JVC DLA-X7900 3D Projector, Sapphire 106" Electric screen, Sony KDL-55W905 3D TV, Pana TX-L37LZD80, Panasonic UB820, UB700, BDT-380 MZ, Panasonic DMP-BD60, Sky Q 2TB, Fire TV 4K, Marantz SR7012, 7.1.2, SVS PC2000 Sub, Kef Q600C Centre, Q300 fronts, Ci160QR Ceilings, CA SX60 Surrounds, Harmony 950+hub.
panman40 is offline  
post #12867 of 12893 Old 12-05-2019, 11:30 PM
Senior Member
 
Join Date: Feb 2019
Location: Iowa
Posts: 202
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Liked: 133
Quote:
Originally Posted by panman40 View Post
I haven’t run autocal in a while now, before each run are you reinstating the original file ( if you saved it?).
I think I did the same regarding the reflection of the spyder back on the projector, do you think not having the screen had any effect on the results ?.
My results have all been good, so I have never had to roll-back to any previous version or the original factory init file. So, I just keep going forward (so far). I've been lucky, that my used SpyderPro5 has been a good meter. Gamma droop was corrected first time I tried. That first time was kind of scary!

My comment about the screen was that it is not important when doing a Spyder "Gamma Only" calibration with sensor facing the PJ lens. Pretty sure, the screen doesn't come into play. I still input all the correct screen data for the program, just in case any of it matters in the gamma correction calculations. Don't know if zoom, focus and throw affect results? Doesn't hurt to error on the upside, right? So far I've had very good results.
panman40 likes this.
catav is offline  
post #12868 of 12893 Old 12-06-2019, 12:24 AM
Advanced Member
 
panman40's Avatar
 
Join Date: Jul 2009
Posts: 520
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 337 Post(s)
Liked: 145
Quote:
Originally Posted by catav View Post
My results have all been good, so I have never had to roll-back to any previous version or the original factory init file. So, I just keep going forward (so far). I've been lucky, that my used SpyderPro5 has been a good meter. Gamma droop was corrected first time I tried. That first time was kind of scary!

My comment about the screen was that it is not important when doing a Spyder "Gamma Only" calibration with sensor facing the PJ lens. Pretty sure, the screen doesn't come into play. I still input all the correct screen data for the program, just in case any of it matters in the gamma correction calculations. Don't know if zoom, focus and throw affect results? Doesn't hurt to error on the upside, right? So far I've had very good results.
Good stuff, on my first run something didn’t go right and stupidly I saved it... I then reinstated the init file and redid it. I don’t think my spyder express is all that accurate but I run gamma and colour, it’s a little red but cleans up easily with the i1D3 afterwards, infact I don’t think I bothered tweaking it the last time.
Yeah I doubt just gamma would be affected without a screen, possibly colour would I guess if the screen is white reflecting extra light around the room.
catav likes this.

JVC DLA-X7900 3D Projector, Sapphire 106" Electric screen, Sony KDL-55W905 3D TV, Pana TX-L37LZD80, Panasonic UB820, UB700, BDT-380 MZ, Panasonic DMP-BD60, Sky Q 2TB, Fire TV 4K, Marantz SR7012, 7.1.2, SVS PC2000 Sub, Kef Q600C Centre, Q300 fronts, Ci160QR Ceilings, CA SX60 Surrounds, Harmony 950+hub.
panman40 is offline  
post #12869 of 12893 Old 12-07-2019, 08:28 PM
Senior Member
 
BdoUK's Avatar
 
Join Date: Jun 2003
Location: Louisville, KY
Posts: 402
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 46 Post(s)
Liked: 25
There was some discussion earlier in the thread regarding a few users that have had issues with their dynamic (lens) iris clicking during operation. I too have had the issue and it's been a bit of a pain to get resolved, but more on that later.

What I've noticed with the DI is that it appears to lose an understanding of the bounds of how far it should move, leading to clicking when it tries to move further than mechanically allowed. To test this theory I set the Manual iris value to -1 and then set to Auto 2. This doesn't move the lamp iris but does slightly close down the lens iris to reduce light output.

After watching content for a few minutes I'll start to hear a distinct clicking sound coming from the projector. When this happens I can clearly see that the lens iris is no longer stopping at the slightly close down position when fully "open". Additionally it appears that the iris won't close as far, presumably because it's lost an understanding of where it is.

I sent the unit to JVC last month but for some reason they replaced the lamp iris (which I don't even use anymore) instead of the defective lens iris. As part of that mix up I did learn that a repair for the lens iris does require a full lens replacement, so hoping I don't get a worse "sample" as part of this process.

I've included a video of the issue below and wondering if anyone else with lens iris clicking can confirm the same behavior when set to -1 / Auto 2.

BdoUK is offline  
post #12870 of 12893 Old 12-08-2019, 02:44 AM
aka jfinnie
 
Join Date: Aug 2015
Location: Norwich, UK
Posts: 3,504
Mentioned: 60 Post(s)
Tagged: 0 Thread(s)
Quoted: 2821 Post(s)
Liked: 1955
Quote:
Originally Posted by BdoUK View Post
There was some discussion earlier in the thread regarding a few users that have had issues with their dynamic (lens) iris clicking during operation. I too have had the issue and it's been a bit of a pain to get resolved, but more on that later.

What I've noticed with the DI is that it appears to lose an understanding of the bounds of how far it should move, leading to clicking when it tries to move further than mechanically allowed. To test this theory I set the Manual iris value to -1 and then set to Auto 2. This doesn't move the lamp iris but does slightly close down the lens iris to reduce light output.

After watching content for a few minutes I'll start to hear a distinct clicking sound coming from the projector. When this happens I can clearly see that the lens iris is no longer stopping at the slightly close down position when fully "open". Additionally it appears that the iris won't close as far, presumably because it's lost an understanding of where it is.

I sent the unit to JVC last month but for some reason they replaced the lamp iris (which I don't even use anymore) instead of the defective lens iris. As part of that mix up I did learn that a repair for the lens iris does require a full lens replacement, so hoping I don't get a worse "sample" as part of this process.

I've included a video of the issue below and wondering if anyone else with lens iris clicking can confirm the same behavior when set to -1 / Auto 2.

https://youtu.be/L2G0m5dmZYI
Gutted that you are having an issue with this still. I think all the logic around the automated iris drive is pretty questionable and seems to rely on nothing "unexpected" happening - I stopped relying on it a while ago and only drive the irises manually now.

Hope you get sorted.
bobof 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