Korg Lambda ES-50 -1979    Weight = 32 Lbs. Number mfg.= ? MRP=$1650

User Manual: fdiskc archive
Reset Proceedures: N/A
Operating System code: N/A
MIDI or other control protocol: N/A
Software related Links: N/A
Patches or knob settings: N/A
Circuit Overview: below
Scematics/Service Manual: fdiskc archive
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used:AMI S10430 divider, AMI S50241 TOS (on boards standing on mainboard), MN3010
General Info Links: Vintage Synth Explorer >

Circuit Overview:
     A divide down oscillator synth with VLSI chips that allow it to actually have simple envelope controls for each note independently. 3 oscillators that can be tuned independently for the sections.

Service Tips:
     I've seen op amps fail and send DC voltage into a mix that totally offset the brass voltage giving it an early distortion. Other issues? Email me!

If you need anything ask. I have a scrap units. Only a few knobs left.. the one biggest one is gone. Very difficult to find parts for these things. See Sigma page for easy fix on joystick knobs.Contact