Disclaimer: This information is provided as is. There may be errors in this information. You may use this information only if you agree that Minimalist, Inc. / Coinop.org, its employees, and noted authors will never be held responsible for any damage, injury, death, mayhem, etc. caused by errors in the information. When working with high voltage, never work alone and always follow safety precautions.

             ------- 
         (1) | \_/ | (24) (+5)
             |     |
             |74LSx|
             |     |
             |     | 
(Ground) (12)|     | (13)
             ------- 

Use the DMM to trace Pins 12 and 24 back to the Edge connector.