Troubleshooting System 600 (SC) POWER FAULT ERRORS

A common complaint on older (System 500/600) SC series machines is when the Data Terminal displays “PWR FAULT.” The Power Fault Error indicates that the 5 volt DC line supplied by the internal Power Supply Board had dropped down below a 4.5 DC volt minimum momentarily. In general, if the change machine is never turned off, the power supply board can start to degrade within [...]