sound-card

So, no sounds initially on Centaur - but a little speech.. I'm mid building the 'Big Clive' SIA (Say It Again) replacement, but doing initial checking / reflowing / repinning the sound card, I noted theat U12 was empty.. schematic says sound generator AY3 8912. Aha says I, missing - so orders...

Hi, so I still have TMNT which I've been doing up for a good friend. I still have a problem with the sound, my electronics and Data-East know-how is a little limited. Basically I don't know if it's the sound-card so I'm reluctant to start replacing all the capacitors and what not on the sound...