I've had the board out fixing controlled lamp issues. The sounds in test were working 2 days ago. Now there is no speech or sound effects. The background music is fine but I know that comes from the soundboard while my problem is mpu related. I've checked all connectors and swapped ribbon cables just to be sure. What could I have done? I wiggled connectors in test still nothing. Also when the volume is turned all the way down it still has low volume. It doesn't shut off completely. My biggest concern though is the speech. Sucks not hearing "it's sunny drive time" or "bitchin". Please guide me. Thanks

Update. Now I can't get to sound test from the CPU switch. That was working last night and now it won't. This machine is driving me crazy

I don't have the book in front of me right now. I did check the J1 connector this morning before work. I'm not sure if that's where the 12 v is but it did not have it

Ok I will check later today. It's weird it worked 2 days ago. I'm afraid removing the board a lot may have a cold joint somewhere messing things up. I will check. Thankyou

I have verified 12 volts at the test point

I found a problem when removing the board. Apperently a small blob of solder landed on two legs of u23. Looks like I probably need a new chip

I got lucky. Desoldered the bridge of solder between both legs. All good now