CurtPalme.com Home Theater Forum

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

Gary,
I agree with the pumping, but I think that is a lot more noticeable on very low cr pjs. With JVCs new pj, a good DI should be a lot less noticeable with high native cr. I believe the guys that have already received theirs have confirmed this. As Crabb said, if you don't like it then turn it off. With the JVC, you still get 30k to 1 on/off cr. Darin used to always say the same thing and that a DI was just a cherry on top. I would have loved to have seen Darin's face when he found out that JVC decided to put a DI on the new models. He had been telling for years how it would improve their pjs and now they went and did it.

phillyguy83 · Joined: 28 Nov 2012 Posts: 47 Location: Colorado

Kal, how do DVDs look when upscaled into your PJ? Do you notice many artifacts? I ask because one of the reasons I like my CRT so much is that I can scale to 720p instead of being forced to throw a 1080p picture, and if the DVD's bitrate is high enough, the picture looks really nice--no artifacts. I'm interested to know how digital compares.

**kal** · Posted: Tue Mar 25, 2014 3:44 am Post subject:

DVDs (480i sources) look no different on my previous CRT as compared to my current digital. In other words, both look soft, very lacking in detail. Also lacking in colour depth.

Upscaling is an extremely simple/well understood algorithm which in both cases was performed by my PS3. I'm not sure what artifacts you refer to - maybe some of the very early scalers would introduce issues, but for at least 5-8+ years now any cheap source with a built-in scaler will give adequate scaling.

Doesn't matter if you're scaling to 720p or 1080p. The result looks identical.

Sticking to CRT because of how DVD looks (IMHO) doesn't make any sense. There's nothing about CRT that makes DVD look better than digital.

Kal

phillyguy83 · Joined: 28 Nov 2012 Posts: 47 Location: Colorado

Thanks for the reply. I should clarify that I like my CRT for many more reasons than how DVDs look; it's just one of the reasons I like it.

stridsvognen · Guest

garyfritz · Joined: 08 Apr 2006 Posts: 12026 Location: Fort Collins, CO

...or maybe he could just say "I love what I've got" and enjoy it!! Very Happy

**kal** · Posted: Tue Mar 25, 2014 7:58 pm Post subject:

Sorry, what I meant to say is that upscaled/dinterlaced material on my new digital doesn't look any worse than it did on my CRT. phillyguy83 mentioned liking going to 720p instead of 1080p and the lack of artifacts on his CRT. I've never noticed any artifacts myself on my digital (or my CRT for that matter) from taking 480i to 720p, 1080p, or 1080i that look different on my digital vs previous CRT.

Yes, my CRT and digital look different overall, but there's nothing about the digital where it specifically has 480i upscaling issues. In other words, there's nothing about my old CRT projector that I miss when watching DVDs. There's nothing about a CRT projector that makes it 'better' for DVD than a digital projector. This is what I meant when I said "Sticking to CRT because of how DVD looks (IMHO) doesn't make any sense. There's nothing about CRT that makes DVD look better than digital."

Kal

stridsvognen · Guest

**kal** · Posted: Wed Mar 26, 2014 1:42 am Post subject:

It could very well be that there are artifacts and issues that I'm completely missing that someone else would see. I would suggest that anyone interested in switching from CRT to digital take a look at the specific digital model that they're considering and see for themselves and make their own decision.

Kal

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

km987654 · Posted: Wed Mar 26, 2014 11:33 pm Post subject:

stridsvognen · Guest

RVonse · Joined: 09 Mar 2006 Posts: 3049

For anyone who may be interested, the bulb on my RS-55 reached what I felt was an unacceptable amount of dimming after 964 hours on the clock. The dimming only occurred during the very final hours (probably after 960) and the picture up until that time looked very nice. It should be noted too that I also had an unexpected power outage after 900 hours which probably contributed greatly to the bulb going bad. Other than that power outage I have been cooling the projector normally during shutdown after 1-2 hours of viewing

I happened to already have 2 new spare bulbs on hand and when I replaced the bulb the results were a dramatic increase of brightness and a great picture again just like it was new. I also notice new spare bulbs for this platform of JVC can now be bought for around $125 on Amazon now.

That being said I am still very interested in any information related to a possible upgrade to the newer DC bulb that Kal mentioned earlier in this thread. Is it just a difference in the bulb or is it a change to the power supply as well?

ecrabb · Posted: Tue Jun 03, 2014 7:21 pm Post subject:

RV, a couple of things I'm curious about on your dimming…

First, what size and gain screen are you using? Second, where is your aperture set, and did you try changing it after you noticed the lamp was dim?

I opened up my aperture the other day and realized I've probably been watching too dim of a picture lately. I left it a few clicks open, but I need to get my meter out and see where I am.

Regarding the lamps, the new models use a totally different lamp and power supply. There's nothing you can change or upgrade between generations of projector.

Also, on the $125 lamps on Amazon, from everything I've heard and seen, I'd stay away from those. While it's about 1/3 of the price of a new OEM lamp from an authorized dealer, they don't last nearly as long, and the performance is sub-par as far as drop-off and color rendition. From what I've seen, the only way to save any money is finding the correct Philips/Osram bare bulb and re-lamping your original housing. From the sound of it, you can do that for about half price, but you have to find the correct bulb form a reputable seller first. I'm probably not far off replacing mine, so I'll let you know what I found out.

Cheers,
SC

**kal** · Posted: Tue Jun 03, 2014 9:03 pm Post subject:

+1. With so many bulb knock-offs and issues, I only go with real JVC bulbs. Yes, they're $400 or so but I'm not taking chances with something blowing up and doing thousands in damage to save a few bucks.

Kal

RVonse · Joined: 09 Mar 2006 Posts: 3049

ecrabb · Posted: Wed Jun 04, 2014 3:42 pm Post subject:

jamsys · Joined: 29 Jun 2006 Posts: 152

My playstation 3 decided to die, and along with it all my settings... Does anyone have the best settings for the PS3 and JVC????

Help

Thx

Scott

**kal** · Posted: Thu Oct 23, 2014 3:10 am Post subject:

Hi Scott,

There are no "best settings" really.

Just make sure to match what you have in your JVC with what's in your PS3. In other words, make sure you match if you do 0-255 (full) or 16-235 (limited) in the JVC with the same in the PS3. Either will work equally as well. The two simply have to match.

Kal

**kal** · Posted: Sun Sep 20, 2015 2:29 am Post subject: