Correcting <IMG_ERR_VCLK> error on PCI-1408

[neuosl]

I have a PCI-1408 board running with NIU-IMAQ 3.7 Software.  Versions 1.6-2.5.1 did not recognize board.  OS is Windows XP.  I keep getting the error above when I look to SNAP or GRAB an image.  I have a video input, PCLK, VSYNC, HSYNC, DGND to the board.  I have a linear Panavision Detector.

 Here is my configuration settings

 Here is my Camera File Properties

My advanced property settings

Any suggestions on how to correct <IMG_ERR_VCLK> Error?

[Joe D.]

Hi neuosl,

There are many things to check when this error is received:

1. 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.

2. 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 your camera type (RS170/CCIR/NTSC/PAL, etc.). Your camera documentation 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 initialized to the correct default settings for your camera type.

3. Try reducing the Sync Detect level (right-click on the channel of the camera and select Properties»Advanced Tab»Sync Detect). This can help for color composite cameras or noisy video signals where the amplitude of the horizontal synchronization (HSYNC) pulse in the video signal might be reduced.

4. Also check that jumper W1 (near the BNC connector) is present. If this jumper is not present, the BNC connector is disabled and you cannot acquire video from the BNC connector.

5. If you are using a VCR output the PCI-1408 probably will not be able to lock onto the signal.

6. 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.