Phase 45 clone troubleshooting

Started by cnspedalbuilder, April 01, 2016, 10:59:58 PM

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cnspedalbuilder

#100
IT IS DONE!!!!!!!!!!!!!!!!!!!!!!
:icon_lol: :icon_lol: :icon_lol: :icon_lol: :icon_lol:

In case anyone reads this in the future, here is the summary of the thread: I built a Phase 45 pedal that generated horribly loud feedback when turned on. After going through a PDT switch, two LEDs, and rewiring and resoldering almost every connection, we solved the problem. The 3PDT switch was broken, creating a short that probably fed output back into the circuit, causing feedback. Also, FYI, when wiring a standard LED to a GPCB 3PDT board, it's necessary to run the ends of the LED into the two D1 pads that are not white. A 2K resistor should also be added to the CLR pads. The "L" pad on the PCB does not need to be used.

This is probably a fantastic thread for novices to learn how to troubleshoot or just to restore faith in humanity.
Everyone who posted on this thread has been seriously amazing. With your patience, I learned how to:
-Test voltages with a DMM
-Build an audio probe
-Test an IC, capacitor, and a 3PDT switch
-Wire a 3PDT, along with the underlying mechanics of how it works
-Enjoy the support and creativity of a community of experts

Thank you guys, seriously!

Renegadrian

#101
(spotted an error on the layout I posted at page 4, one line break more then needed- bridged with leftover wire and corrected layout)



It finally works as supposed. take this layout as verified
Done an' workin'=Too many to mention - Tube addict!