Donkey Kong Kong Grin Sound Is Off

[bradp56]

My plays great every sound works except one. At the very beginning when Kong climbs up the ladder and jumps the girders move and he smiles your supposed to hear 3 beeps. Mine sounds more like a muffled sound rather than the 3 beeps. Its also happens after Kong grabs the princess and goes to the next level. Every other sound is fine.

Here is what I have done. Replaced Audio board, replaced all the sound caps on the board and the Q3 transistors. I also got a new Audio chip and replaced LM cant remember the number.

I dont know what else to do. Its not a big but my OCD wont let me leave it go.

[darkcat1]

Well I don't know much yet but check the wiring.  I'm going to assume that the board is not the problem

Sent from my Nexus 5 using Tapatalk

[TimeRunner]

You might need to replace the digital sound chips. They will have to be burned on type 2716s. Brasington's site has a lovely chart:

http://www.brasington.org/arcade/tech/dk/

[bradp56]

Is there a way to bypass the amp and hook it up to a speaker? I am just curious as to why its just that one sound especially the lowest digital sound.