*I am unable to work on your Sonos unfortunately. This video is the best I can offer*
This Sonos whole house amp system (model CTAZPUS1) was brought in because it stopped turning on. I found that it is built like a puzzle... I had a heck of a time getting it apart until I found the top was removable.
Looks like it was hit by a surge that took out the switching Mosfets and the pair of diodes on the secondary side. Amp chips seem 'ok' so far.
Part 2 • Sonos Connect:Amp Repa...
Thanks for watching!
Amp Chip STA508 www.mouser.com...
Mosfet K13A60D html.alldatash...
Diode Y1010DN www.onsemi.com...
MC3406(daugher board) www.onsemi.com...
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