Black hole speech issue

playpin35

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Donor 2011
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I purchase and installed a ni wumpf cpu and rottendog driver board in my black hole yesterday. Prior to that I was using original boards from my haunted house to check the mechanicals. With the original boards the speech speed and tone seemed to be fine, but with the new boards, the speech speed is faster and at a higher pitch. Has anyone experienced this issue before? This is my first time using a ni wumpf cpu.
 
You have a video? I have the Ni-Wumpf, and I could tell if it sounds the same way or different.
 
There is 2 pots on the sound board to adjust this. one is tone, the other is speed.
 
R6 and R13 metered fine from 0-10K. However, Q2 did check bad. Would Q2 being bad cause this issue, or would U21(LM741) also be part of the problem? Any help is greatly appreciated as I would like to place one order for everything and get this heap up and running.
 
My money is on Q2.

However, I don't know of an easy way to test U21. If it's socketed, and they're cheap... go ahead and get one...
 
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