Few days ago there was popping sound from subwoofer unit under minute after turning speakers on and then it went dead with control pod showing no power.
Quick googling showed that in UK people have had these to blow fuses but 3,15A glass tube fuze under power cord socket is intact, and neither did 10A plug fuse trip even though it's probably faster to react.
After taking unit out from under the table I tried turning power switch and unit's power LED blinks like in some search results of this speakers dying problem.
After that I unscrewed about dozen screws and already opening unit's back for few centimeters showed bulging CapXons (HP 105C) in primary.
There are no visibly burst caps but if you look second pic closely you might notice something on surface of PCB in its left side near smallest transformer.
While scraping that gum for removing shrink wrap I took that third pic showing signs of sparking or flame from that shrink wrapped Su'scon.
Fifth primary cap (CapXon KM 105C) along that smaller transformer belong to "standby" section whose power is controlled by power switch in back of subwoofer unit and which gives power for control electronics and control "console/pod" whose power button in turn activates main power with that blue relay.
All secondary caps are from CapXon GS serie. That one tiny cap in secondary along that "sparky" and little one next to standby's primary cap are Su'scon SL
While having been bought/made in 2003 I've used so much headphones that I wonder if these speakers have even over 500 usage hours (and at very moderate sound level) meaning basically those caps expired all by themselves.
With that high quality circuit board material and very good soldering someone should be shot for then going dirt cheap and using such junk time bomb caps!
As no fuse was blown and there aren't signs of blown up semiconductors being responsible for that noise there should be decent chances for other components being intact.
Any suggestions for highest quality caps to replace these junks?
Audio/amplifier board caps are all Jun Fus but those really shouldn't be stressed by current except two Jun Fu HK serie caps in power rails.
Quick googling showed that in UK people have had these to blow fuses but 3,15A glass tube fuze under power cord socket is intact, and neither did 10A plug fuse trip even though it's probably faster to react.
After taking unit out from under the table I tried turning power switch and unit's power LED blinks like in some search results of this speakers dying problem.
After that I unscrewed about dozen screws and already opening unit's back for few centimeters showed bulging CapXons (HP 105C) in primary.
There are no visibly burst caps but if you look second pic closely you might notice something on surface of PCB in its left side near smallest transformer.
While scraping that gum for removing shrink wrap I took that third pic showing signs of sparking or flame from that shrink wrapped Su'scon.
Fifth primary cap (CapXon KM 105C) along that smaller transformer belong to "standby" section whose power is controlled by power switch in back of subwoofer unit and which gives power for control electronics and control "console/pod" whose power button in turn activates main power with that blue relay.
All secondary caps are from CapXon GS serie. That one tiny cap in secondary along that "sparky" and little one next to standby's primary cap are Su'scon SL
While having been bought/made in 2003 I've used so much headphones that I wonder if these speakers have even over 500 usage hours (and at very moderate sound level) meaning basically those caps expired all by themselves.
With that high quality circuit board material and very good soldering someone should be shot for then going dirt cheap and using such junk time bomb caps!
As no fuse was blown and there aren't signs of blown up semiconductors being responsible for that noise there should be decent chances for other components being intact.
Any suggestions for highest quality caps to replace these junks?
Audio/amplifier board caps are all Jun Fus but those really shouldn't be stressed by current except two Jun Fu HK serie caps in power rails.
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