JVC DLA-RS1 Owner's Thread - Page 2

Originally Posted by Rob Tomlin

Here is the link to Greg's original comments, perhaps with a little more context:

http://www.avsforum.com/avs-vb/showt...7&page=5&pp=30

Yes, you change the menu of the source, not in the RS1. I believe that the default setting for HDMI output will be YCbCr signals anyway, but this may not be the case for DVI devices if I understand correctly.

I will edit the first post to add some clarification.

Originally Posted by mrlittlejeans

Usually, contrast is greatest at max throw while lumens are highest at min throw. The other advantage to a long throw is reduced hotspotting with gain screens (other than the high power).

Originally Posted by Randymetro

I know that this is the owners thread but can any one tell me which brand of screen and gain would be best for a room with light control and the lens of the projector would be 16 feet from screen. Do you also know what size screen would fit in that space? Thanks

Originally Posted by Andy Lammer

Tryg:
Why is longest throw = better picture ?
The math says contrast & lumens are greater at minimum throw.

FYI: I am 22' away from 104" wide Silverstar ..... foaming/frothing at the mouth to pickup my PJ this afternoon !

- Andy

Originally Posted by Brian Corr

Matt,

You up for letting some fellow Dallasites come see it???

Originally Posted by Tryg

Longest throws generally always give you the best picture. Compensate with a higher gain screen if necessary

Originally Posted by Andy Lammer

Tryg:
FYI: I am 22' away from 104" wide Silverstar ..... foaming/frothing at the mouth to pickup my PJ this afternoon !

- Andy

Originally Posted by JackLT

3 Questions about the color problems Gregr identified:

1) Are these color matrix issues minor or easy to notice.
Is it something we should consider avoiding units until its corrected?

Greg quoted that JVC is aware of the his color concerns:
2) What is the firmware update process, by user, or at service center only?
3) If it's a hardware issue will JVC offer a quick swap for new units to early buyers?

Originally Posted by gregr

First, let me provide a quick update on the behavior of the color issue. I found last night that the color matrix mismatching (listed in the first post of this thread) can change from one power up to another. The digital RGB problem shifted from HD to SD signals when I powered up the projector last night. That wasn't very surprising since this is a firmware issue, which is why I continued to check it when I needed to turn the projector off and on again.

More importantly, I was notified this morning that JVC engineers in Japan have identified the cause (firmware bug) of the matrix mismatch problem. They will give me an update on Monday. I suspect the firmware can be updated through the RS-232 port on the rear of the projector, but I won't know that for sure until next week.

In answer to your first question, I consider a color matrix mismatch to be significant. It is primarily visible as green color that is either too light or too dark depending on which matrix mismatch occurs, and it also affects the hue and lightness of other colors to a lessor degree. But I am extremely sensitive and concerned about color accuracy. I'm sure there are many viewers that would not notice the inaccuracy. However, some will, and that is the reason I posted information about the issue prior to publishing my review. So for now, just avoid using analog or digital RGB signals if you want the best color accuracy, and JVC should have this corrected soon.

Unfortunately, problems like this have become almost common on new projectors and video processors, but it is how manufacturer's address these issues that really shows their customer commitment. JVC is taking care of this very professionally.

Originally Posted by Fishysan

I gather your review will be in issue 119 ? I'm hoping to have my RS1 today or Monday, but I'm still interesting in reading your thoughts.

Originally Posted by gregr

It's hard not to talk about this projector.

Originally Posted by gregr

So for now, just avoid using analog or digital RGB signals if you want the best color accuracy, and JVC should have this corrected soon.

Unfortunately, problems like this have become almost common on new projectors and video processors, but it is how manufacturer's address these issues that really shows their customer commitment. JVC is taking care of this very professionally.

Originally Posted by Matt Brann

I guess the first thing i should admit, is that I'm not a photographer. Here are a couple of pictures I quickly took of some HD content (HD Discovery channel and HD Jay Leno both via Verizon Fios). The last is a picture from LOTRs in standard definition. I've not done any tweaking of the projector. This is about as "out of the box" as it gets.

Matt

Originally Posted by dazzerxxx

Is that good or bad ?

Dazzer