-
Monitoring problem: using Kona and HDlink together. help!
Hello everyone, we have a monitor configuration problem that I hope someone here can help us with. We are running FCP 5 on a G5 quad with 2gb ram. Using a Huge media vault 4210 and Kona Lhe with break out box. Now, we have 2 cinema displays and one JVC 19″ production monitor. The main issue is that we are encountering significant shaking of the footage on the JVC monitor when using the second cinema display as a HD monitor with HDlink. Here is how we have the monitors configured:
One cinema display is connected to the mac card and used as real state.
The second monitor is connected to HDLink, from here the HDlink is connected to the Kona breakout box with a bnc cable to the SDI out 1 port. The Kona is connected to the mac correctly and works fine.
The JVC production monitor is connected to the component monitor out of the kona breakout box.Now, the hdlink connected cinema display looks wonderful at 1920 x 1080 interlace. However, at this resolution the JVC presents significant shaking of the image. If we change the resolution to 1280 x 720 then the shaking is significantly reduced on the JVC but the hdlink display is reduced to 1/4 of the size and no longe uses the full screen. There are no magnetic fields or anything that could be responsible for the shaking of the JVC image.
The JVC is a DT-V1910CG SD/DH Production monitor.
Is the problem an issue with the Kona control panel settings? or maybe the jvc settings? we have played with both but can’t seem to find a solution. Thanks for your help. Sarah.
-
7 Replies
-
Boy, am I confused.
The HD Link should be getting a feed from the HD-SDI output of the Kona LHe.
With FINAL CUT PRO or the Kona control panel test pattern, bring up 1080 Color Bars. Make sure your Display System Preferences is set for 1920×1200.
On your cinema display via the HD Link – do you see nice stable HD color bars? (I don’t give a crap about the MAC desktop) – I believe that you will. Same goes here, if you were using the AJA HDP.Now, quickly disconnect this cable from the HD Link input (the HD SDI cable coming from the Kona LHe), and plug this VERY CABLE with the same color bar signal into the JVC monitor. Is it stable or shaking ? If it’s shaking – the JVC has got an issue, and may not be able to handle a 1080i signal (I dont know it’s specs, but it may only be able to handle a native 720 signal – I just dont know) –
Let me know what you find.
Bob Zelin
-
Thanks for the message. The hdlink is connected to the sdi output of the kona breakout box and it takes the color bars from fcp perfectly. We can’t do the test because our jvc monitor does not have the hd/sdi imput board, it only has a component board. so the signal is coming out of the kona through component into the jvc. We will use the JVC only for color correction, thus we only needed the component board. I’m not sure that this is the problem since the monitor is supposed to support 1080i (50, 60, and 24psf) throuh the component card.
We took the sdi output cables that comes straight out of the Kona card and connected to the Kona breakout box as stated in the instructions. From the box, there are component cables going to the JVC monitor and one sdi to the hdlink. When controlled by the desktop, we see the same thing on the hdlink controlled monitor and in the jvc, except that the jvc shakes. If we send bars from final cut, the hdlink monitor is perfect but the jvc shakes. Is it that we are not supposed to send the sdi and component signals at the same time? we are a bit confused about this. Or do you think that most likely is the set up of the JVC monitor? Thanks! S.
-
The Kona 2 offers a Y Pb Pr analog output that is controlled and set by the AJA Kona Control Panel. This control panel allows you to switch the component output between Hi Def analog component, and Standard Def Analog component (downconvert). In this control panel, under the control tab, you can select COLOR BARS, and test the JVC. Test the JVC with the Kona Control Panel color bars – both as an HD signal, and then as a downconverted Standard def signal. How does the JVC respond ?
Sure, I would love to blame the JVC, but I am not there, and I just don’t know. You have to do these tests, and report back. YES, the Kona can output HD-SDI AND component video AT THE SAME TIME. You must now tell me if the HD component out is shakey, or is the downconverted output shakey, or is both shakey. I can assure you that even on a cheap consumer Sony LCD monitor that you get in Best Buy, the Y Pb Pr output of the Kona 2 is ROCK SOLID, so lets see if your monitor has an issue, or just an issue with
HD or SD.Bob Zelin
-
Thanks again for helping us here. Just to clarify this is the Kona Lhe. not the Kona 2. When we send color bars to the JVC we notice a very slight shake, which is noticable mostly when compared to the HDlink footage, which is perfectly solid. This happens with both the 1080i signal and the 525 signal. But when we send real footage it is barely noticable. The strange thing is that we did not notice this until we installed the hdlink. Thus is it possible that there is something wrong with the way we are connecting the system (or settings) or we simply are noticing it more bacause the hdlink footage gives us such contrast. Let me describe in detail our connections and see if you see anything wrong:
-From the kona lh card the 60 pin connects to the back for the kbox
-from the Kona lh card the sdi/hd input, output 1 and output 2 also connect to the back of the Kbox
-From the front of the Kbox, 3bnc component cables go from component out to the component in of the JVC monitor.
– From the front of the kbox, one bnc sdi cable exits the SDI output 1 and connects to the HDlink, which connects to the 2nd cinema display.In theory I don’t see anything wrong with this. If there is nothing wrong with this or the settings, it is possible that there is somthing wrong with the monitor. I will try to ring JVC today, although wish me luck in trying to talk to someone there! wish all companies had teh same support as AJA, BM, and HUGE. Cheers, S.
-
Thanks again for helping us here. Just to clarify this is the Kona Lhe. not the Kona 2. When we send color bars to the JVC we notice a very slight shake, which is noticable mostly when compared to the HDlink footage, which is perfectly solid. This happens with both the 1080i signal and the 525 signal. But when we send real footage it is barely noticable. The strange thing is that we did not notice this until we installed the hdlink. Thus is it possible that there is something wrong with the way we are connecting the system (or settings) or we simply are noticing it more bacause the hdlink footage gives us such contrast. Let me describe in detail our connections and see if you see anything wrong:
-From the kona lh card the 60 pin connects to the back for the kbox
-from the Kona lh card the sdi/hd input, output 1 and output 2 also connect to the back of the Kbox
-From the front of the Kbox, 3bnc component cables go from component out to the component in of the JVC monitor.
– From the front of the kbox, one bnc sdi cable exits the SDI output 1 and connects to the HDlink, which connects to the 2nd cinema display.In theory I don’t see anything wrong with this. If there is nothing wrong with this or the settings, it is possible that there is somthing wrong with the monitor. I will try to ring JVC today, although wish me luck in trying to talk to someone there! wish all companies had teh same support as AJA, BM, and HUGE. Cheers, S.
-
JVC will never admit to the problem – you must deal with the dealer that you bought it from.
I urge you to bypass the entire computer system, and simply hook up a VTR (like a Beta VTR, or the component output of an HD VTR)to the JVC monitor directly, and see if you get the shaking. I am guessing that you have a problem with the monitor. Certainly, it should be relatively easy for you just to get any other monitor in there, to compare – you are only using analog component, and this is common for a monitor.
Bob Zelin
-
Sarah,
I have the same setup as you (sending video out of the Kona LHe to HDLink and to a CRT simultaneously) and have not had a problem.
I don’t have an HD CRT so I set the Kona control panel to send SD out component to my (Sony) monitor and it looks fantastic, rock solid.
I did have an issue using SD with the HDLink but I don’t think the HDLink is your problem… I have to agree with Bob, it sounds like the JVC monitor is the issue. Sometimes these things happen simultaneously but are unrelated.
I think using Bob’s method of narrowing down the possibilities will give you the answers you are looking for.
Michael
Michael Rothenberg
Peak Productions
Reply to this Discussion! Login or Sign Up