S-MIX Pinout

Pinout for the S-MIX. It's used in Later Revisions to mix the Audio from the APU, the Cartridge and the Expansion Port.

             .---\/---.
      VCC -- | 01  14 | <- PREL
     PRER -> | 02  13 | <- MUTE
    IN_AR -> | 03  12 | <- IN_AL
    IN_ER -> | 04  11 | <- IN_EL
    IN_CR -> | 05  10 | <- IN_CL
      GND -- | 06  09 | -- GND
Right Out <- | 07  08 | -> Left Out
             `--------´

• PRER: Right Preset
• PREL: Left Preset
• IN_AL/R: Audio from APU
• IN_EL/R: Audio from Expansion Port
• IN_CL/R: Audio from Cartridge