[sdiy] bulging caps

harry bissell harrybissell at prodigy.net
Fri May 5 03:55:26 CEST 2006


a bulging cap is not necessarily guilty as charged... but it is a prime 
suspect taken
downtown for questioning !!!

H^) harry


NATE! wrote:
> is it wrong to assume that a bulging cap is automatically bad?
>
> this KORG
> AM8000R i just bought powers on, bypass works great [relay bypass! true
> bypass when it's on or off! woo!], but NOTHING passes the input stage... the
> dB
> meters don't even light up.
>
> right now i've got it open, and i'm assuming that the bad cap is wonking up
> the power for input
> buffer stuff....it's one of 4, and it's the only bad one...
>
> it also looks like it came with the wrong power supply [13.8v DC instead of
> 9v AC], but im assuming it's rectifying any input signal to DC and splitting
> it to what it needs since the display and processors all seem to work [with
> the exception of the audio processors which i can't test!]... i'd still like
> to give it a proper power supply though :)
>
> if anyone has a korg DL8000r or AM8000r, if you would be so kind as to tell
> me if it has the pin out on the power supply that would be great :D on the
> one i have positive is on pin 1 and 2, negative on 3 and 4. [DIN power
> connectors UGH]... also the brand too, the 13.8v dc supply mine came with is
> by ROSS but i don't really have a way to see if it was a replacement or what
> :(
>
> any help would be great, thanks :)
>
> - nate
>
>
>
>
>   



More information about the Synth-diy mailing list