Changes
/* User's Troubleshooting Guide */
== User's Troubleshooting Guide ==
'''If the SpUpNIC control GUI won't open, it's likely that the detector sub-system is unhappy'''
* Try resetting the PCI card: go to the back of the SpUpNIC PC and press the small white switch near the bottom right corner of the machine, then try again to launch the GUI
* If the PCI card reset doesn't help, try the black reset button on the grey power supply for the SDSU controller (on the bottom left of the instrument if viewed from the south side)
'''If the rear-of-slit camera window does not produce any images (though the exposures seem to count down), it probably needs a reset'''
* Check that you've got the light path right: guide mirror centred and the rear-of-slit mirror in the beam
* Then check that it's not an image scaling issue, by turning on the slit illumination (which is bright enough to show up under most circumstances)
* If you still don't see anything, go out and gently unplug the black USB cable that goes in to the back of the camera (look for the red LED on the small camera that pokes out of the south side of the instrument's lower box) and plug it back in again
* Start the exposures again and check with the slit illumination
'''If the slit runs anything but horizontally across the rear-of-slit image, the camera needs relocating
* Fiddling with the USB cable can disrupt the physical position of the camera, which is on a spring-loaded kinematic mount
* Go out and grip the rear-of-slit camera assembly and gently jiggle it - the camera will pop back into its required position
* Verify with the slit illumination that the slit runs horizontally across the image again
= Technician's Guide =
