These contests are getting harder and harder...
You should upload a bit larger picture. I'm sure we have experts who can recognize the circuit by the color of the wires, but still...
Yellow leds.. maybe that's a clue.
View attachment 72885
Can you infer which circuit this schematic is original from?
It is a 4-knob board and the original is written to use opa2134. (photo jrc072)
I literally can't even see one single component value at all. Can't even make out one resistor value. With a picture that dark/blurry, it's anyone's guess to what that could be.....
