I have a sound board in a Data East Rocky & Bullwinkle that is behaving strangely. At first it was wide open for volume, nothing would make a change regardless of volume control setting. I went as far as to take a new pot and a short harness so I could plug it right into the board. I was told I could remove the SSM2024 and jumper 4 of the pins with 25K resistors (2 to 4 and 5 to 7)...that didn't change it either. What did make a change was replacing both of the LM833N. When I did this, it makes the audio barely audible. If I remove one of the new 833's and put one of the pulled ones back in, leaving it with a new one and one of the originals, it is at a tolerable level, although not the best audio quality. Another note is the board was jumpered at W7 from the factory, but the book says to jumper at W6 which Idid...is it possible that causes the lower quality sound output? I guess I should be a little happy based on other threads on this topic, at least this one works to a certain degree, but I am curious if there is an issue with the SSM 2024, because you can remove it all together and it does the same thing. After this experience, it makes tuning a nitro funny car seem easy...I am open to suggestions and as always I appreciate any and all help. Thanks, Mike

Thanks for the help. As for the sound pot, I built a new one with a short run o wire to a molex plug and installed it right at the board so I could reach it easier and possibly eliminate the possibility of a bad wiring/pot problem. As for the LM833's I will check to se which of the 2 is new and used and let you know. I can switch the jumper back and se if that doesn't do some good as well. Thanks for all of the help so far, it is so hard to imagine that something as mass produced as the board in this machine, as well as Jurassic and Star Wars would be so hard to outsource parts for...Mikee

After making the jumper move, the sound is complete, and while I am fairly certain that the 2024 is faulty, the audio level is high enough that you can hear it well although not blaring like before. I am going to do a science experiment and order some chips from the orient with a prepaid visa card to see if A) I get them or B) they try to swindle me or C) regain faith in the internet...not really optimistic about C, other than places like Pinside or some Danish porn feed Thanks again for all of the insight and help, Mike