To get to Mikey and Suzy I had to remove a metal shielding, which I just did. I cannot check voltage since the cart needs to be in the system and that covers the chips!
Here is what I found:
U6 off 1,4,5,9,10,13m and 14 all read 9V, on 2,3,6,8,11,12,14 7.8ish
Measure the voltage across R65 and C7 with the Lynx on, you should get 0 and 5V respectively.... got 7.39V
Also, Mikey was very very hot to the touch... could this be a failure? At one point, the speaker kicked on and was loud and staticy, but I was able to lower the volume. I do have a parts Lynx 2 motherboard, I could remove mikey from that, but i'd like to avoid using hot air (never did it before, although I do have a hot air gun, lol)