Donkey Kong 3 Board Sound

thefader

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I have a Donkey Kong board that half of the sounds dont work on. (Coin Up Sound, Kong hitting the bee hives, and the background music during levels.)

I dont know much about these boards. Can someone tell me which chips could be causing this problem? Thanks
 
have you tried to recap the board, i just got done doing the monitor and audio board on my donkey kong 3 game. the audio board only has appox 6-8 components to replace (i got my parts at bob roberts approx 5.00). there are two transistors? and one could be bad and may be the cause the lack of sounds.
 
If it was the audio board, it would cause all sounds to act up right? Half of the sounds play perfect, half are absent. I am told this is a ROM problem most likely, but i dont know which ROM's are responsible for sound.
 
donkey kong 3

i am pretty sure that there are two channels on the sound board. and power to the sound board doesn't sound like a problem if some sound is working. i don't know which rom but before looking there the sound board would be real easy to rule out and make sure both channels are working.
 
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