Crack was sounding great. Shouldn't have messed with it when it worked.
Decided to remove the speedball and save it to reinstall later. I’ve read that all I needed to do is remove small board, replace the two 22.1K resistors, and it will be back to stock. So this is what I did, but when doing resistance checks, I have found values of 0 at OB and OA on the large board. They should read very high, as it says in the manual. I also checked terminal 7 and 9, and they read 0. Checked the RCA jacks, and they read 0.
Is it possible that my 22.1K resistors are damaged? Are the resistance checkpoints the same with the same values when the large board is left on?