Quoted from Flippers_com:Get the manual and your voltmeter out and start checking for valid voltages on the computer and other boards. The CPU must have 5VDC to start up, so check that first.
John :-#)#
PS, you need to write a more descriptive Subject if you want people to respond. Something like "My Gottlieb Victory won't boot - what steps should I follow?" you are competing with many posts after all...
First thing I would do is lightly press on the piggyback board located on the mpu and see if anything changes. If it does... you found your culprit.