A common reason for intermittent failures of many kinds for Williams, Bally,
and Stern solid state machines is a floating ground due to loose circuit
boards. Make sure each board is firmly attached with screws everywhere
New tips are welcome and encouraged. Tips will be credited to those who
contribute. If you would like to submit a tip click
For more information you may contact us by email, email form, or by phone at (801)
277-6296 (voice and message), or (801) 277-0888 (message).