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"Major restoration + Kenton midi install for this PS-3100!As on almost 99% of the PS series synths, same problems after 45 years: edge connectors completely cracked, capacitors that leak and begin to deteriorate the adjacent copper tracks, potentiometers at the end of their life, intermittent jacks, defective dividers. ..Nothing very complicated in itself , but the simplicity of the electronics of the PS is counterbalanced by the physical aspect of the job (the cables of the front panels controls / connectors are often difficult to access when changing parts) and ultra repetitive maintenance (18 connectors w/22 pins that must be disconnected / rewired, 46 potentiometers, around thirty jacks with a common ground rail, 150 capacitors, the same copper tracks attacked by drips on all the filter / gate cards to be restored, 12 dividers to be changed. .) .. so it's far from easy work!Work done :---------------
Change of all (18) 22-pin connectors with new identical ones manufactured in Japan
- Change of all electrolytic and tantalum capacitors
- Decontamination of areas / copper tracks attacked by capacitors leakages
- Change of all MM5824 dividers with new clones
- Change of all potentiometers with identical new parts
- Change of all the jacks with identical new parts ( MIJ)
- Installation of a mod to reduce background noise in headphone / line output
- Installation and wiring of a KENTON midi kit -Calibration"
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