Serial Violations Have Occurred. Check Interface Cable; Smeared Images - Princeton Instruments PhotonMAX System Manual

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Chapter 7
6. Reboot your computer.
7. Restart WinView and begin acquiring data or focusing. If you see the message

Serial violations have occurred. Check interface cable.

This error message dialog will appear if you try to acquire an image or focus the camera
and either (or both) of the following conditions exists:
To correct the problem:
1. Turn OFF the camera system (if it is not already OFF).
2. Make sure the computer interface cable is secured at both ends.
3. After making sure that the cable is connected, turn the camera system power ON.
4. Click OK on the error message dialog and retry acquiring an image or running in
Note: This error message will also be displayed if you turn the camera system OFF or a
cable comes loose while the application software is running in Focus mode.

Smeared Images

PhotonMAX uses a frame-transfer CCD which allows simultaneous exposure-readout
operations (see pages 48-52 for more information). However, when the exposure time is
small compared to the frame-transfer time, smearing may appear in the images. To
alleviate this problem:
1. Use a longer exposure time, or
2. Use the SHUTTER signal from the camera to control a fast external shutter (such
Troubleshooting
again, increase the DMA buffer size.
Figure 67. Serial Violations Have Occurred dialog box
The camera system is not turned ON.
There is no communication between the camera and the host computer.
focus mode.
as an LCD shutter) to block light during the frame-transfer readout cycle.
77

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