Sea Wolf PT boat dive sound

manadams

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I am 99% done fixing my Sea Wolf and had a question about the PT boat sound. I remember it making a "erurrr erurrr" sound when going across the screen but mine makes a faint whistle noise instead. I can change the tone of the sound to a low or high pitch whistle noise but nothing like what I remember. Did some Sea Wolfs come with different sounds or do I have a bad component altering the sound? You can hear the sound at the 24 and 36 second marks in video.

 
That isn't correct. You have an issue on the sound board.

It's common on these, as the sound boards are all analog, and can have many issues.
 
So I can get my dive sound to work by touching and applying slight pressure to the 150k resistor in picture that is above hole that is next to green cap. It's not the resistor or the connection because I have replaced it and checked continuity to every place the resistor connects to, have even jumpered the connections to make sure. Sound only works right when I put pressure on it with my finger, doesn't work when pressured with anything else because I drilled holes and zip tied pressure on it and no dice. Is this somehow a grounding issue? This fucking game is fighting me to the very end for something that should be simple, about ready to give up and just have a whistle sound for my PT boat.
 

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Not a grounding issue. Something in that circuit is out of spec, and you touching the circuit is compensating for it.

Test all other parts in that area, including transistors and caps.
 
Well I found a solution, just made a little antenna out of about 3' of wire and soldiered it to one end of the resistor. When I was touching it, I was basically acting as an antenna. I replaced all caps and tested all transistors in that dive circuit so didn't know what else to do. Bit of a hack but hey it works now.
 
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