Crumar Musical Instruments User Group.

I am hoping someone else has run into this problem and can make some suggestions. So I bought a Crumar T2 organ off of Ebay that needed work. I know I must be a glutton for punishment when it arrived and I flipped open the lid and raised the keyboard assemblies (nice design) and many of the cards were out of place. 
I sourced a schematic and got all the cards back in place, soldered some loose connections, replaced damaged caps and diods on a few cards and boards and fired her up to find that the lower board worked perfectly, but the upper board would only make the key click sound. 
I have several keyboards and one of them being a hammond, so I am sure i have the settings right. 
The biggest idenitifier of an issue is that the Bus cable that connects the bottom row of cards (the interlaced cards under the keys) from the left side to the right had been unplugged and was laying in the bottom of the keyboard. I thought, great, just plug this in and i will get my upper keys working. when i plugged each end in to the appropriate card (front cards), I hear what sounds like all the keys playing at once, and the bottom can be faintly heard through the noise. the top keys still dont generate any organ sounds, just the key click. I know we want the key click, but i can't figure out where the problem might be and where to look for issues with chips, 
loose connections, etc. perhaps the last guy in there misswired it in a repair. unfortunately, this t2 has been heavily abused. that being said, i have to imagine that since i am getting everything to work perfectly on the bottom board that it's worth pushing through and getting this organ up and running. Anybody have any ideas? also, i only have the schematics to the T1 and although it is very helpful, it most likely doesnt give me all the info i need. Thanks to anyone that can make some suggestions on where to dig in.

Johny in Denver, Colorado