I don't have anywhere better to put this ... and ... heck, I may not update anything ... but I picked up a Sonos AMP for free last Saturday in High Wycombe. I am hoping that I can push on to my parents to free up all the old Sonos tech that they have so that they can just use the new app. The reason it was free ... no power.
I've cleaned it up and reckon that this is either a symptom or related to the issue:
That's the 'L2' inductor on the power circuit and that board (also pictured in the below spoiler in full) seems to either be completely or mostly power related.
SO ... I got onto Farnell (thanks to my previous caps & resistors thread) and they sped me ten inductors that I believe (after research) to be the correct types.
Obviously it goes without saying that there's likely to be more to blame than an inductor ... however, I am hoping that it only blew because the previous owners did not have it plugged into protection when they had a surge / powercut or something. Either way ... looks like I will be practicing how to test resistors soon ... before lopping that nasty one off and replacing it!
I've cleaned it up and reckon that this is either a symptom or related to the issue:
SO ... I got onto Farnell (thanks to my previous caps & resistors thread) and they sped me ten inductors that I believe (after research) to be the correct types.
Obviously it goes without saying that there's likely to be more to blame than an inductor ... however, I am hoping that it only blew because the previous owners did not have it plugged into protection when they had a surge / powercut or something. Either way ... looks like I will be practicing how to test resistors soon ... before lopping that nasty one off and replacing it!