Capcom 85H001 sound module reproduction

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    • Capcom 85H001 sound module reproduction

      It's a replacement module I designed to replace the original one used on the following Capcom boards:
      - Ghosts'n Goblins/Makaimura
      - Avengers
      - Legendary Wings/Aresu no tsubasa
      - Section Z
      - Trojan/Tatakai no banka
      - Gun Smoke
      - Black Tiger/Black Dragon

      I know of 3 different types (there might be more) which are interchangeable between games:
      - Ceramic module without any marking: seen on Makaimura first run for instance
      - Plastic module ref. 85H001 5I
      - Plastic module ref. 85H001 5H

      I don't have much time at the moment so I plan to sell bare PCBs for now.

      Needed parts:
      - 2 rows of 30 male header pins
      - 1 * Z80 CPU (DIP40)
      - 1* 6116 type RAM (DIP24, narrow 0.3" package)
      - 1 * 74LS08 (DIP14)
      - 1 * 74LS21 (DIP14)
      - 2 * 74LS74 (DIP14)
      - 2 * 74LS138 (DIP16)
      - 1 * 74LS139 (DIP16)
      - 1 * 74LS174 (DIP16)
      - 1 * 74LS367 (DIP16)
      - 27 * 10kΩ resistor (1/8, 1/6 or 1/4W are fine)
      - 11 * 100nF capacitor

      First solder header pins:



      IC layout: BE CAREFUL ONE OF THE LS138 HAS TO BE REVERSE MOUNTED



      Capacitors:



      Resistors have to be mounted vertically:



      Module fits in place of the original one, I advise to install a socket. It must be installed so references of ICs on the replacement module are legible the same way ICs on the board:



      Quick video of the module tested on Trojan:



      Quick video of the module tested on Ghosts'n Goblins:



      Bare PCBs are now for sale $18 shipped worldwide in an envelope.
      Looking for:
      - OutRun boardset even untested or not working
      - Sega Super Scaler hardware (Out Run, Model X, Model Y), even with faulty PCM chip



      01010011 01000101 01000011 01010010 01000101 01010100 00100000 01001101 01000101 01001110 01010101 00100000 01000111 01010101 01011001

      The post was edited 14 times, last by Apocalypse ().

    • Bare PCBs are now for sale $18 shipped worldwide in an envelope.
      Looking for:
      - OutRun boardset even untested or not working
      - Sega Super Scaler hardware (Out Run, Model X, Model Y), even with faulty PCM chip



      01010011 01000101 01000011 01010010 01000101 01010100 00100000 01001101 01000101 01001110 01010101 00100000 01000111 01010101 01011001
    • Most games use a Z80 @ 3 or 4Mhz so Z80A or Z80B are a safe bet.
      Looking for:
      - OutRun boardset even untested or not working
      - Sega Super Scaler hardware (Out Run, Model X, Model Y), even with faulty PCM chip



      01010011 01000101 01000011 01010010 01000101 01010100 00100000 01001101 01000101 01001110 01010101 00100000 01000111 01010101 01011001