The SE-6590 IBM PC Interface card signal not reaching the computer. The indicator light on the photogate is working correctly, but the photogate status does not change on the computer.
Check that the photogate is attached to the upper of the two ports on the game card (15-pin connector). If the photogate is attached through the "y" adapter cable, it could be a faulty cable. Check the cable for continuity. The pinouts are as follows.
Input connector 1:
Input connector 2:
Creation Date: 01/1/2000
Last Modified: 07/2/2003