Thanks for all the other help. Here's the issue: When first powered up, Claw goes left until it hits wall, issue shows up in test, easily remedied in claw test, then works fine for rest of powered up usage. I've read everything I can on this, removed opto board, tested resistors and diodes, re-flowed solder, did same on motor control board. checked where connectors go to on CPU, noticed thy were plugged into J208 and 206, instead of J209 and 207, switched them, made no difference.
Everyone says look to optos for problem, but my question is; if it works fine after power up resetting done, then optos are working fine, no? something is shooting power to the claw motor on boot before the testing is done, or started for the matter.. this one baffles me.