Issue
The Output relays will not control on a 7780, how can I fix this?
Environment
I/NET site
Cause
Output relays will not control on a 7780
Resolution
- First, check the matrix relay interface cable and make sure it is correctly connected.
- Secondly, make sure the matrix straps are not set incorrectly.
- Finally, Fuse F2 maybe blown. Fuse F2 is located near the top edge of the base card, directly above the LEDs. Fuse F2 is plugged into positions A and B of receptacle J20. This is a 0.5 amp pico fuse.