I do not own any Serge modules but have done module repairs, system restoration, and complete system rebuilds.  There is a lot of good information on Serge at www.serge.synth.net/. 

Serge 3 Boat System Rebuild (new panels)

Serge 1 Boat System Rebuild (dark panel)

Serge 3 Boat System Restoration

Serge WAD (Wilson Analog Delay) (FRAC format)

LEDs were mounted on a small PCB that soldered to a banana jack for mounting.  The LEDs solder into one of the sets of two holes at the bottom depending on the spacing from the banana jack.

home