Home Theater Projector Reviews: JVC DLA-RS1, A 1080p LCOS projector
JVC DLA-RS1 Remote Control
Click enlarge. So close. Nothing like a really good remote control, and the JVC RS1′s remote is very good. Long and thin, and very light (I wouldn’t mind a little more weight), it should be easy to handle by large hands and small alike.
One thing I consider very important, is for a remote to be easily workable with one hand, and the JVC remote does that just fine. Another key issue is backlight brightness, and the JVC’s backlight is nice and bright. Speaking of backlights, the button to engage the backlight is in the lower right corner, very easy to access. By comparison, many (including the Sony VW50) put it in the top left, much harder to get to.
Let’s start at the top: On the left is a very small Off button (press twice for off) and opposite it a larger On button.
After a nice space, come the six source buttons in two rows of three, with the “hi-res” buttons on the first row – HDMI1, 2, and Component video.
Next, changing from bar buttons to round ones come three large buttons for the primary presets – Cinema, Natural, and Dynamic. The change in shape makes those easy to NOT confuse with the source buttons.
The next row of three has the User savable settings buttons, and then the next two rows have (left) color saturation +, and – (the minus is below the + button. In the center, the + and – for Sharpness, and on the right, a Gamma and below it, Color Temp button.
OK, next left is a rocker bar for Contrast + and -, and right, the same for brightness. In between these two large rockers, is a small Info button (on top) and the image mute (labeled HIDE), button.
That takes us to the usual navigation area, with the Menu button on the left, Exit, which moves you back up a menu level on the right, and the four arrow keys in the usual diamond configuration, with a large Enter button in the center.
That’s it, except for the Test button on the bottom left, and the previously mentioned backlight button on the right. The Test button toggles you through a number of built in test patterns, including full color bars, gray scale, and separate Red, Green and Blue gradation screens.
JVC DLA-RS1 Lens Throw and Lens Shift
he manual zoom lens on the RS1 is quoted as having a 2:1 ratio. The actual lens throw chart in the manual indicates that the ratio is actually just slightly more than that. Officially, here are the numbers for a 16:9 100″ diagonal screen. Based on this info, you should be able to calculate the placement range for any sized screen.
For the 100″ diagonal screen, the lens can be as close as 9 feet 10 inches, or as far back as 19 feet 11 inches.
The amount of lens shift is very generous, quoted as being 80% vertical and 34% horizontal. As with almost all projectors with lens shift, the two affect each other. If you use most of 80% vertical, you are limit, the amount of horizontal shift, and vice versa.
What does 80% mean? The center point would be having the lens at the same height as the center of the screen. The adjustment would allow you to move the image or down the same amount. Let’s assume that 100″ diagonal screen. It would be approximately 49.3″ high – but I’ll round to 50″ for simplicity. 80% of 50 inches would be 40 inches. The center point is at 25 inches, so up 40 inches would have the lens 15 inches above the top of the 100″ screen, or as low as 15 inches below the bottom. That 100″ screen would be 87 inches wide, so 34% of that would be about 27 inches either side of dead center, as the furthest off center – if you are not using the vertical lens shift at all. The manual has a chart to show you how they affect each other.
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