dukeofearl
Well-known member
- Joined
- Jan 7, 2016
- Messages
- 77
I have a 1980s RFZ MP-4084 console from the DDR. I'm in the process of replacing some of the din, trennklinke and tuchel connectors, and I'm having a difficult time determining the correct polarity. Someone already installed XLRs for the mic inputs, but I'm not sure they did it correctly, because it was done differently in different sections.
The console is in three sections, the main unit (8 channels plus master etc) and two additional 8-channel units. Pin 2 from the mic input xlr goes to different pins on the mic preamp modules (KV80) in the different sections. The line outputs are mixed up as well.
Perhaps someone here could help determine the answer to the input polarity by looking at this part of the schematic? If you look on the left, AB5 and AB3 are the two input pins on the preamp module. Currently, some of the mic inputs are wired pin2 to AB5, and some are pin2 to AB3. Or maybe it doesn't matter as long as the input and output on each channel are matching?
The console is in three sections, the main unit (8 channels plus master etc) and two additional 8-channel units. Pin 2 from the mic input xlr goes to different pins on the mic preamp modules (KV80) in the different sections. The line outputs are mixed up as well.
Perhaps someone here could help determine the answer to the input polarity by looking at this part of the schematic? If you look on the left, AB5 and AB3 are the two input pins on the preamp module. Currently, some of the mic inputs are wired pin2 to AB5, and some are pin2 to AB3. Or maybe it doesn't matter as long as the input and output on each channel are matching?