3886 help...Blown Capacitor!!

wboyd · 22nd September 2005, 02:03 PM

Well....last night I was finalizing my GC assembly (BrianGT kit) and decided to plug it it in and give it a test. Well unknown to me my signal output wires were crossed (I had folded them to get them out of the way) and I blew 1 of the 100 uf 50V caps on each of the boards.

What I would like to know is if the wires being crossed could have been the only problem - and I can just go ahead and replace the caps and everything will be ok?!? I mean could this be caused by something else (power problems, wrongly mounted resistor, etc.). My Traffo puts out 23.1 V going to the snubb'd supply. Also, my chips got pretty hot (not enough to burn, but hot)...no visible damage to them.

Any help would be appreciated!

Thanks

Wayne

jaudio · 22nd September 2005, 02:30 PM

Make sure the caps polarities are right and not backwards.

wboyd · 22nd September 2005, 02:35 PM

thanks for the response!

The polarities were correct as far as I can tell....but I will recheck when installing new ones....I am human...and mistakes are humanly possible

jaudio · 22nd September 2005, 03:19 PM

I made the mistake of putting a capacitor in backward and it exploded.

22nd September 2005, 02:03 PM	#1
wboyd diyAudio Member Join Date: Aug 2004 Location: Louisville, KY	3886 help...Blown Capacitor!! Well....last night I was finalizing my GC assembly (BrianGT kit) and decided to plug it it in and give it a test. Well unknown to me my signal output wires were crossed (I had folded them to get them out of the way) and I blew 1 of the 100 uf 50V caps on each of the boards. What I would like to know is if the wires being crossed could have been the only problem - and I can just go ahead and replace the caps and everything will be ok?!? I mean could this be caused by something else (power problems, wrongly mounted resistor, etc.). My Traffo puts out 23.1 V going to the snubb'd supply. Also, my chips got pretty hot (not enough to burn, but hot)...no visible damage to them. Any help would be appreciated! Thanks Wayne __________________ "I am always doing that which I cannot do, in order that I may learn how to do it"

22nd September 2005, 02:35 PM	#3
wboyd diyAudio Member Join Date: Aug 2004 Location: Louisville, KY	thanks for the response! The polarities were correct as far as I can tell....but I will recheck when installing new ones....I am human...and mistakes are humanly possible __________________ "I am always doing that which I cannot do, in order that I may learn how to do it"

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22nd September 2005, 02:30 PM	#2
jaudio diyAudio Member Join Date: Oct 2004	Make sure the caps polarities are right and not backwards.

22nd September 2005, 03:19 PM	#4
jaudio diyAudio Member Join Date: Oct 2004	I made the mistake of putting a capacitor in backward and it exploded.

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