![Can anyone tell me what do "MF" and "DN" stand for on a pcb like this one? I know that CN means capacitor NETWORK, would DN mean diode NETWORK by any chance? Can anyone tell me what do "MF" and "DN" stand for on a pcb like this one? I know that CN means capacitor NETWORK, would DN mean diode NETWORK by any chance?](https://preview.redd.it/1fexyf5761o61.jpg?width=640&crop=smart&auto=webp&s=f17cb8d6bd1fa4b36b0b8e4ea729238499e00d0c)
Can anyone tell me what do "MF" and "DN" stand for on a pcb like this one? I know that CN means capacitor NETWORK, would DN mean diode NETWORK by any chance?
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