Quoted from radial_head:

RESOLVED: Lowering the value of R25 to 1k or 1.5k will allow you to bring the volume down to nothing.
Hey there DE/Sega heads. Looking for some confirmation making sure I'm reading this circuit right. I want to discuss the volume control section of the sound board circuit.
The volume input on the circuit seems to take -5V (from the output of VR1) and the pot controls the volume control on the TDA8199. From the way I understand it, the closer you get to ground (0) the louder it is, the closer you get to -5v, the quieter it is.
For a while now, I've just been adding a resistor in series with the volume pot wiring to make sure the volume pot can go ALL the way down, however there's no real ideal or secure way to ensure that a volume pot will stay in place. A slipped wire in the volume pot line can make the board read as 0 and make it go LOUD, which sucks.
So I'm looking at the board and thinking if there's anyway to lower the signal level as a whole to bring the signal closer to, or below, -5V. Thinking that R12, R13, or R25 are the ones I should be focusing on and increasing the value, but not sure which one to start at. I think in the past I changed R25 to something higher, but I also royally fucked that board up in an accident and can't really look back at it for reference.
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Quoted from Garrett:

I have a question for you guys that know DE and Sega pins. Been farting around with EM pins for over 10 years. It's time for my first SS.
Been looking at lots of gameplay videos over the holiday. The DE titles are in my price range and for my first SS, shallow rules are more than fine.
My main question is;
Data East Jurassic Park vs Sega the Lost World JP?
Reading opionions would suggest the DE JP is better overall but when people state you can't get to San Diego mode, I find that idea quite challenging. Realize it's my decision in the end but opinons are always appreciated.
Also interested in any of the following; R&B, LAH, Star Trek or TFTC. I mean, you've had that pin for years and been itching for a new title right?

Quoted from Garrett:

I have a question for you guys that know DE and Sega pins. Been farting around with EM pins for over 10 years. It's time for my first SS.
Been looking at lots of gameplay videos over the holiday. The DE titles are in my price range and for my first SS, shallow rules are more than fine.
My main question is;
Data East Jurassic Park vs Sega the Lost World JP?
Reading opionions would suggest the DE JP is better overall but when people state you can't get to San Diego mode, I find that idea quite challenging. Realize it's my decision in the end but opinons are always appreciated.
Also interested in any of the following; R&B, LAH, Star Trek or TFTC. I mean, you've had that pin for years and been itching for a new title right?