I have a Gorgar that has a new Kohut MPU board. The diver board,sound board, and power supply are all original but reworked The game plays fine, but on some occasions - seems to be random and not very often - the game will freeze with loss of all solenoids and the displays go blank. Eventually the displays come back on to display attract mode scores, but the playfield lights, etc. don't go into attract mode. If I switch the machine off and back everything resets back to normal.
I am wondering if this is a power issue and if there is something from Vid's original post and the responses from other pinsiders that might address this issue.