bo_knows
Addicted to Fun and Learning
Excellent work! Please keep us posted.** UPDATE ** One month on . . . see below for faulty component tear down. High voltage carnage!
Prompted by a Denon AVR repair I read on another forum, I decided to cut open the ECO relay I replaced. Oh boy, the carnage is real.
Hopefully the Carbon deposits are obvious in the photo (it shouldn't look like that) but they are only a bi-product of the very obvious arcing and destruction of the high voltage contact pair. In comparison, the low voltage side (ECO mode on) look pristine.
I will be sourcing a more robust replacement relay with better contact materials and treatment.
Looks like I get to pull this all apart one more time
View attachment 432840
I'm wondering if the top of the line A1H AVR/AVC contains these sub parts or they were upgraded.
I don't think we have any presence of Denon/Marantz engineers on this forum to chime in.
How could we reach out to provide them with the feedback? I assume they get notified via service centers around the world with this type of issue.