If you are new to pinball machines you can quickly learn how the pinball machine works and what to do about problems.ย
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For the experienced technicians this book provides invaluable references, test points and pinouts for effective troubleshooting.
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This book refers to the Williams/Bally WPC System and the System 11 however, many troubleshooting techniques and principles of operation will apply for pinball machines of different systems and manufacturers.