Fresh install of raspian from noobs. The pi is up and on the network and can be logged into remotely. But the tv plugged into the RCA video port is black and there is no caps lock light coming on when I push the caps lock on keyboard. There do seem to be some faint flashes on the tv as the pi boots.
Is there a setting I need to make somewhere? I tried adding sdtv_mode=0 to the config.txt but that didn't seem to have any effect. What am I missing? This is one of the older pi with 256 mb of memory.