Another problem cropped up today. I had a bad cat5 connector so I fixed that. Now I can't get 2 of the channels on that output to work. Here is my setup:
2 Olsen 595's running from parallel port
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Using Brian's SSR's
The LED for the channels turns on but nothing out the "O" port for output 2 & 3. 1 & 4 work fine. I tested this using Dirknerkle's SSR/CAT-X tester. The LED's turn on the 595 board but not on the tester board. I swapped the 2803 & 595 one at a time from another working board and that didn't fix it. I looked for a schematic to see what actually drives the outputs. I am guessing it is the 2803 chip does that. Actually I swapped the 2803 first then I swapped the 595 with the 2803 still swapped.
Are there any troubleshooting steps that help with this online someplace?
Thanks
2 Olsen 595's running from parallel port
Powered by a AT computer power supply
Using Brian's SSR's
The LED for the channels turns on but nothing out the "O" port for output 2 & 3. 1 & 4 work fine. I tested this using Dirknerkle's SSR/CAT-X tester. The LED's turn on the 595 board but not on the tester board. I swapped the 2803 & 595 one at a time from another working board and that didn't fix it. I looked for a schematic to see what actually drives the outputs. I am guessing it is the 2803 chip does that. Actually I swapped the 2803 first then I swapped the 595 with the 2803 still swapped.
Are there any troubleshooting steps that help with this online someplace?
Thanks