VT220 Keyboard Error 4?

[tiggerlasv at aim.com]

I tend to look for the simpler explanations first.

If your keyboard was previously working,
the first place I would check is the MMJ 
on the back of the terminal.

I've seen everything from malformed pins,
to corrosion, to spider webs, to dead bugs
inside RJ12 / RJ45 connectors.

Another point of failure is the?MMJ on the keyboard cable;
you can try removing that, and re-crimping it.




T