Korg Mono/Poly

Hello Juppdich

Am 25.03.2015 um 18:25 schrieb juppdich@yahoo.de [korg_mono-poly]:
> I was also not able to locate those Leds in the Scematic. Maybe 
> because the Part where the VCOs are drawn has bad Detail Quality in 
> the Scematics.
The LED is D103/203/303/403

To locate them in the schematic of KLM354 
(http://fa.utfs.org/diy/korg_monopoly/mp_06_klm-354_vco_schemo.gif) have 
a look at the right side of the plan. There are the gate inputs. Track 
the line of Gate 1. It is routed to an OpAmp 4558. At its output a 
resistor leads to two diodes in series. The second one of these two 
diodes is the LED.

Florian