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regnad
Copper Member

USA
6 Posts
Posted - 06/01/2009 :  14:16:32  Show Profile  Reply with Quote
doesnt sound like its worth fixing if the chip is dead. could there be any other faults?
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Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 06/01/2009 :  14:43:01  Show Profile  Visit Laurie's Homepage  Reply with Quote
The chip to fix it cost $0.40... Not sure why that "doesn't sound worth fixing"?

There could be many other reeasons there is no sound. To find mine, I connected a test signal to the pedal and traced the signal through the pedal with a scope.
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regnad
Copper Member

USA
6 Posts
Posted - 06/01/2009 :  23:43:56  Show Profile  Reply with Quote
where do i get this chip? and how high of a frequency oscope do i need for pedal work? is 20 Mhz good enough?
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Laurie
Double Platinum Member

Canada
4854 Posts
Posted - 06/02/2009 :  03:37:32  Show Profile  Visit Laurie's Homepage  Reply with Quote
20MHz is a fine scope for audio work. I have an old Tektronics 20MHz one I bought cheap on eBay.

I bought my replacement chips at the local electronics wholesaler. I've needed a few over the years so I recently bought a tube of 100 RC4558 SMD opamps for $14.
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