hifi engine

Pioneer SX-680

For anyone experiencing no audio with this model. Check for open R401 (33 ohm 1/4 watt--terribly udersized for this circuit--) for open. Prevents 45 volt B+ from being delivered to all audio circuits except the power outputs, which have their separated supply circuit. Replace, if open, with a 1/2 watt 33 ohm resistor.