Originally Posted by gr8flyer55
Ray, the culprit is pin 6, the base connection to the transistor output. Is there a different opto we can use without the internal base connection?
Yes there is I just have to go through my library to find it. Did you try a 100k or 10k ohm on PIN 6 to ground? how about changing R11 to 100 ohms (PIN 5) to power (+) Vdd. I've had this problem before on other boards and circuits.