Hy there,
I just wanted to know if some could tell me for what these are.
(Red circle)

Thanks and greetings,
Ben

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   sam_0347.jpg
   

The red wire (pin 1) is +5V.
Pin 2 is left audio (cartridge pin 58).
Pin 3 is right audio (cartridge pin 57).
Pin 4 is GND.

I can’t find the pinout of the MM1030B audio amp with a cursory search, but a little circuit tracing would fix that.

Does anybody know how to actually use the cartridge audio pins to mix audio into the VB’s final output? I’ve read somewhere that the voltages are not the same as a typical line-in (like on a stereo receiver), but does anyone know specifically what they are? Is the VB cartridge audio pinout electrically the same as in the SNES?

Thans RunnerPack for the info.;)

Virtual_Ben wrote:
Thans RunnerPack for the info.;)

Any time, Ben. BTW, what prompted you to ask about this? Are you having a problem with your VB’s amplifier, or are you working on something new, or…?

I just wanted to try something out.
Nothing special.