Guitar pedal mod

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Bun-Bun
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Joined: Mon Nov 12, 2012 2:21 pm

Guitar pedal mod

Post by Bun-Bun » Mon Apr 29, 2013 10:20 am

I did this mod last night in a couple hours.

Bigger images see here https://www.dropbox.com/sh/xkiyde5spjsgqc8/JIa9Z_g5gl

I started off by soldering the chip adapters to the riser board.

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Soldered the chip assembly to the board. I didn't remove enough solder when I removed a diode. Can see where it pulled up the tracing a bit.

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Replaced a cap

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Replaced a diode with a germanium. New one is a bit bigger.

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Stock diode configuration seems weird to me

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Replaced with germanium

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Made a mess of it... (I redid this like 8 times I could not get a clean joint on these, and what is the discoloration on the component side?)

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Replaced a cap on the tone pot (and noticed after that I removed solder from another pin accidentally. I fixed that after I took the pic)

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Replaced the LED with a brighter clear blue one (stock was a dull red one)

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In testing the tone and level pots quit working. I followed the traces and those ugly ones from above were along the line, so cleaned them up with some isopropyl. Now its working, or maybe it was the one pin I accidentally desoldered I need to pay closer attention when testing. (what's the best way to clean flux? Q-tip didn't work very well...)

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Overall shots

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