So I picked up a faulty Sonos Play 3 with a messed up power supply. Capacitor blew up took out traces.... fairly common occurrence. I recapped it and ran a cable connecting to the bridge rectifier. Upon trying it out, it always blows the fuse and gives a large bang... so shorting somewhere. Can anyone provide some guidance on how I could fix? It keeps blowing on the back of the board.. See Pics attached.
Announcement
Collapse
No announcement yet.
Sonos Play 3 Power Supply
Collapse
X
-
Re: Sonos Play 3 Power Supply
You should also remove the carbonized section of the PCB, it is conductive once it is carbonized like that.
I found some pictures here also: It looks likes those caps are all bad in these pictures.
https://en.community.sonos.com/wirel...86/index4.html
https://www.dropbox.com/sh/ba5g91xey...w=IMG_3695.jpgLast edited by budm; 05-26-2020, 06:54 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
-
Re: Sonos Play 3 Power Supply
Originally posted by stj View Postyou need to check the rectifier, cut/scrape away all that carbon, and replace that jumper that almost touches with an insulated one - preferably with a curve in it to clear the other rectifier terminal
Comment
-
Re: Sonos Play 3 Power Supply
Originally posted by R_J View PostI found this picture of an undamaged board, top view of that area.
Check if the bridge rectifier is shorted
All my results were in the 500 range. So guessing it is OK. Could it be reporting erasonable values but still be busted? Thanks.
Comment
-
Re: Sonos Play 3 Power Supply
Originally posted by budm View PostYou should also remove the carbonized section of the PCB, it is conductive once it is carbonized like that.
I found some pictures here also: It looks likes those caps are all bad in these pictures.
https://en.community.sonos.com/wirel...86/index4.html
https://www.dropbox.com/sh/ba5g91xey...w=IMG_3695.jpg
Comment
-
Re: Sonos Play 3 Power Supply
Without good board or the schematic to compare to what the burnt board is supposed to have is difficult to trace out the board.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
Comment