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Unrecognized video source

I am having trouble getting a CCIR camera to work with my new PCI-1407 IMAQ card. Two days ago, I was unable to capture any images. Yesterday it worked flawlessly, and today I am back to a non-functional system. I don't believe that I changed anything important in the meantime.

I installed the PCI-1407 according to the instructions. The self-test runs perfectly and gives no errors. I know the CCIR camera is working properly, because I've plugged it into a monitor and it gives good images. I have update my IMAQ software to version 3.0.1. Every time I try to do an image acquisition, I get "Cannot detect recognizable video source." I've tried changing the white and black reference levels, changing the order in which I power up the camera and the computer, and nothing seems to work.

If anyone can give some advice, I would greatly appreciate it!
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My friend and I have similar problems. She uses PCI-1407 and I PCI-1408. I have a video camera attached to a 1 to 7 amplified splitter. The video signal is splitted and send to a black and white monitor, XFC video card, and PCI-1408. The black and white monitor and XFC video card never have any signal problems. But PCI-1408 complains every time I move my computer. Note nothing bad would happen if I don't move anything. But when signal problem does occur, I make sure computer is on, all labview programs are off, then I turn off the camera and turn it back on. Sometimes takes multiple tries, but most time I can bring it back this way.
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Hi,

Have you tested the power supply of the camera? Have you tried another PCI-slot? Another cable?

Make sure that the camera is connected to the board and it is powered (this is the most common problem). Tricky variations on this problem include defective power supplies, systems that power-up when the application is run, defective cables, and cables connected to the wrong channel or input.


Make sure you are attempting to acquire using the correct interface file (e.g. img0.iid), the correct channel, and the correct camera file for you camera type (ie, RS170/CCIR/NTSC/PAL, etc.). Your camera specifications should indicate which signal type it outputs. Make sure the camera file has not been modified by right-clicking on the channel and selecting New>> {RS170/CCIR, etc.}. This will bring up a dialog prompting you to choose a name for your new camera file. Choose a different name, then try the acquisition again. Your new file will have been initialize to the correct default settings for your camera type.

The PCI/PXI-1407 and 1411 boards have a Lock Speed parameter which you can adjust to a faster setting to enable the board to lock onto a poor VCR signal.


Occasionally with very weak signals (due to long cable runs or noisy environments), you might need to force the board to use a higher gain. This can be done by reducing the white reference level and/or increasing the black reference level (where applicable) in the channel Properties window.

If none of these help, try to make sure that the camera is supplying a "good" video signal. Some older cameras might put out a nonstandard number of lines, which will cause difficulty for the locking circuitry on the board. Try acquiring with another board in another computer if possible, or try acquiring from another camera with the same board. You might also want to run the diagnostics from MAX to test several components of the board

Maybe the board needs to be repaired?

Regards.

JV
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Thank you both for the replies -

I have just conducted a thorough test - I have taken a CCIR camera with a dedicated power supply and tested it with my pci-1407 card, and it did not work. Then I took the entire camera/power supply/cable setup to another computer that has a pci-1411 card. Here it worked perfectly on the first try. The only differences between the computers is (a) the difference card models and (b) mine runs xp professional while the other runs 2000.

I have also tried varying the lock speed and the white/black levels in MAX, as well as moving the card from one pci slot to another. I've run the diagnostics in MAX and they all come back successful.

Perhaps the card is defective? I'm not sure. I'd appreciate more thoughts. Thanks again.
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Hi,

It looks like there is a problem with the hardware itself. You can call NI for a repair.

Regards.

JV
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