Hello
I’m restoring a Moog Prodigy s/n 1002
I’ve already changed all the electro caps and the voltage regulators.
I went through the calibration procedure without problems until the step called “Filter Scale, Emphasis and Filter Cutoff Frequency”.
Unfortunately I’m not able to track the emphasis oscillation to all the Keyboard, with the Kybd Tracking Switch on “Full” position.
I took all the voltages around the filter ladder and all were coherent with the schematic, except at pins 3 & 13 of U15A, where I got 4,9V instead of 8,3V as indicated on the schematic.
Anyone could help me to diagnose the last issue I have on this Prodigy?