Trying to improve the performance of the speakers by improving the quality of the crossover components...

Any ideas on my other questions?

Hi I am trying to refurbish this crossover with some higher quality poly-caps/parts... The speaker is a in-wall Polk 65-RT... Key questions I have are:

1) What in the world is the yellow part on the board (label is MET 1.0J 100V)?... Should I even consider replacing it?
2) The 470uF cap.... Does anyone know have a suggestion as to where I can find a reasonable audio quality polycap near that value? (or at least 3 160s or the like?) { I don't want to spend $70 just to replace this one if I can) (maybe even someone looking at this circuit could even tell if this cap is important...

[ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3169656}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3169655}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3169654}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3169653}[/ATTACH] Here are a few picture of my power...

sam_sam_sam.... Thanks for this suggestion.. I am actually thinking that the power supply board might be causing the issue to some extend too. It is actually on a separate board next to this one... (see this link on ebay... Board is basically this [URL="https://www.ebay.com/itm/125275904642?epid=9054671937&hash=item1d2b069a82:g:i3cAAOSwjcplQO4V&amdata=enc%3AAQAIAAAA4MUFH9HaAgBoEFoUJlrx6HiBggVUuLx8X9qmFpBmp50ht1YK4JFZrTdYD6H8AUBnkRdBdEzhDulnT6%2FrivwM2Xk9eBCg3JEAwY5xBlUCwzKZNDLYA3EGRJKeYzUtfC%2BCts6mjkP7xrztFyssmWUFG3tSL6rFJG2K%2FIkdTTipmt3j7nuctjs7rPRwQ%2B3H%2FNleCKmNF8E5R7pUXM0lwhWby0cC8y%2Bx7YxGM1YQA6q920dJtNNkJmlHlOy9T9pPepCpZT299IhgQb7SUovKSyo07Mv1FUujh1m%2FAhGu0ipbNjTt%7Ctkp%3ABFBMluCi5pVj"]model[/URL]....

actually agree with you. I replaced c58 + the other 3 caps... (picture is before my repair).... still having the issue..... If it were a relay... I would assume that would just be dead and unrecoverable with my power off power on trick... what do you think... I am certainly not an expert however so not positive about my statement on that point, just my understanding how the part works....

Definitely not a valve issue.. it is electronic...

Hello joining again

Re: Sonos Connect Power Supply





I replaced the controller chip that arrived yesterday. I am back up and running!!! Thank you very much for your guidance, it saved me buying a new unit or doing a more crude workaround with using 2 separate power supplies!...

Re: Sonos Connect Power Supply

Thanks.. I ordered a replacement. I hope to attempt the repair as soon as I receive it. Will let you know the outcome,
THanks!

Re: Sonos Connect Power Supply

Thank you very helpful information. Would you have any idea how to track down a replacement for the 8 pin chip? Not sure what I should be looking for. Also any way to confirm that 8 pin controller is the problem?

Appreciate the guidance!

UL161

Hi, I am trying to revive a Sonos Connect power supply (currently totally dead). No obvious damage to the eye, so I just decided to simply replaced all the Caps first. Unfortunately, that did not fix it.

Next, I'm thinking it could be one of the surface mounted chips. Particularly, one four pronged chip label says L 14 43 817 A W has no continuity (1st picture). I'm assuming this means it is bad? (But not sure.) Can anyone confirm if lack of continuity with this chip means it is bad? If so, can you suggest what this part is and what a replacement would be?? I am including pictures...

Re: New Members - please post your introductions here

Hi, everyone. UL here. An interested DIY electronics guy looking to learn. Look forward to sharing information!