Home Theater Questions? Ask a Technician for Answers ASAP
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, bear with us; re-confirm and post back that the unit is a Yamaha RX-S70. If yes, what other devices are connected to it? ...and have you tried with just the RX-S70 standalone?
Proposed preliminary checks (if have not been done):
Please post back results / observations of the above once tried.
A friendly reminder: voltage measurements by its very nature requires that the Yamaha be plugged in, turned ON and therefore LIVE! Please exercise due care and caution.
Appreciate the post back and an update when able.