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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

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Re: Broken keyboard PCB traces

2008-06-25 by inocencio66

The later replies have been apreciated, but the problem is fixed since 
my post #3854. I used a Stanley knife and wirewrap wire. 

The upper tracks (by the carbon pads side) are wider and make the 
soldering much easier. Longer runs of wires are needed and have to be 
arranged so they won�t get in the way of the key contacts. 
Once the keyboard is reassembled the wires stay hidden.

Since there was nothing to hold the connector I superglued it to the 
board.

The synth has been working faultlessly since then. 


An off-topic tip: when calibrating the 101 don�t underestimate the 
service notes where it�s said to tune the VCO to 442 Hz. 
I tuned it to the usual 440 Hz and now have to rotate the pot a bit 
clockwise off-center...

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