Onkyo TX-DS939 problem...

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Jexx

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Joined 2006
#1
Okay, so I did something pretty stupid.

I hooked up a JL w7 subwoofer (3 ohms) to my Onkyo TX-DS939 receiver (8 ohm minimum) to see if the sub worked. It was for a brief amount of time (not more than a couple of minutes).

Now there is a buzzing sound in all channels that goes away once the unit has warmed up. I opened it up and found some smaller caps that are buldging slightly...could that be the problem?

I've repaired car amps before, but never anything like this...

General pic of board:
http://img.photobucket.com/albums/v346/illuminator321/DSCN2659.jpg

Caps in question:
http://img.photobucket.com/albums/v346/illuminator321/DSCN2658.jpg
 
#7
Jexx said:
Okay, so I did something pretty stupid.

I hooked up a JL w7 subwoofer (3 ohms) to my Onkyo TX-DS939 receiver (8 ohm minimum) to see if the sub worked. It was for a brief amount of time (not more than a couple of minutes).
Click to expand...

I doubt that the problem happened due to the sub, but still, this was a bad thing to do. Electronics works on a time scale on the order of microseconds. 'A couple of minutes' is by no means a 'brief amount of time', as far as asking for a erious failure, it could as well have been a century.
 
#8
I was honest because I wanted the help to get it fixed, because how the problem developed helps in the solution, NOT to get chastised. I already know what I did was stupid!

Anyway I replaced the caps and all is good now.
 
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