The DIP switch in the last image shows the correct settings for a Jamma cab (onboard sound amplification and positive video signal). The correct sized 10K volume pot is also not commonly available here so I made a small riser/adapter board to in a standard trimmer pot (a 24mm pot could be remotely mounted somewhere off the board if desired), VR3/VR3/VR5 adjust the video bias.Īll the component values are marked on the board for convenience. It uses an MB3712 amp which can be substituted with an MB3713 flipped around (reverse pinout). The video transistors should be 2SC1815's but they're not commonly available here so they have been substituted for 2N3904's, they have a different pinout so the centre and right legs (Collector-Base) need to be swapped around. The yellow jumpers are where a 10 way DIP switch needs to be fitted to swap between outputs. Donkey Kong 64 - Frantic Factory ( No Windup) 18.78 Kb: Donkey Kong 64 - Frantic Factory ( Windups) 23.75 Kb: Donkey Kong 64 - Frantic Factory - Production Room: 46.39 Kb: Donkey Kong 64 - Frantic Factory Boss: 77.03 Kb: Donkey Kong 64 - Frantic Factory Lobby: 15.02 Kb: Donkey Kong 64 - Frantic Factory: 21.24 Kb: Donkey Kong 64 - Jungle Army. There's two sections on the CPU board where there are a number of unpopulated component locations.
#DONKEYKONG AUDIO MOD#
I'm repairing some boards that need to be able to be plugged into both an original Nintendo cab as well as a Jamma cab.įortunately the PCB is designed to be able to do this and you just need to populate it with the missing components.īelow is what you need to do to mod a board. Eh, the
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