PRELIMINARY
Everything Seems to be Working, But No Image
Remove the cover from your PC and reset all the cards into the mother board. Sometimes when you move your PC, cards inside the PC work themselves loose. Don’t forget to check for optical path obscuration also.
Data Clocking/Output Signals
Verify the presence of all data clocking and output signals at the connector pins on the camera housing. This is easily done by disconnecting the J7/J8 data cables and probing the connector pins with an oscilloscope. Remember, the camera will
Horizontal Lines or Patterns in Output
To eliminate this type of problem use a DC light source. Also verify that data cables and ground shields are
No Output or Non Specification Output
If your camera has no output or is putting out an unspecified signal unkown to you, check the length of your cable. If it is unnecessarily too long and not shielded, your cable most likely is picking up radiated noise and is inputting the noise into your image acquisition system.
Vertical Patterns in Output
Sometimes you might see patterns in your output. Most likely these are caused by dirt on your lens or possibly contaminants on the sensor window. Clean both to remove all contaminants. Some vertical patterns can also be caused by improperly wired or shielded data cables also.
Images Are Too Bright or Too Dark
The causes to this problem should be obvious, but many times are overlooked. If your captured image is too dark or light, then experiment with the lens aperture. Sometimes if you lengthen or shorten the Line Rate Period (ExSync) time this will affect your image.
Don’t forget to check your lighting!
Images Look Noisy
There are several things that can cause this condition. Try increasing and decreasing pixel gain until you find the right setting. Look for an increase in dark current. If the ambient temp. increases this will cause noise in the image.
Fairchild Imaging •
