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Author Topic: Sunn concert lead silverface schematic  (Read 3427 times)

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Offline chris348

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Sunn concert lead silverface schematic
« on: July 24, 2012, 06:36:35 pm »
Hey guys, I have a silverface concert lead that stopped working recently, so I opened it up and noticed 3 caps, that had leaked on the pcb. I noticed that these caps were newer caps, so they must have been changed in the past. I'd like to know if the replacements used were of the correct ratings, so if anyone has the schematic please post it! Also if anyone has had problems with these caps in those amps, I'd like to know what you did to bring it back to life! Here is a pic of the 3 caps: http://img440.imageshack.us/img440/7316/photo0082q.jpg
Thanks
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Offline tmdazebass

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Re: Sunn concert lead silverface schematic
« Reply #1 on: July 25, 2012, 04:02:37 pm »
hard to tell by that picture , that looks like glue under the caps to hold them in place , a lot of PCB manufacturers do that to protect against cold solder joints caused by harmonics or vibration
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Offline chris348

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Re: Sunn concert lead silverface schematic
« Reply #2 on: July 25, 2012, 06:49:26 pm »
oh i took the pic after i cleaned up the black stuff that was around  those caps' leads on the pcb
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