MPC 2K Won't Reconise sample ram.

I Had a NightMare, I dropped my MPC 2K from 2ft onto a rug the other day and now displays zero sample ram when I try to load anything. Now I have tryed removing the 32mb ram and using the internal 2mb ram, still shows zero sample ram(I have tried new 32mb ram, still no luck). I am pretty handy with electronics so I have resoldered a few chips on the main board, reseated the ram and checked all voltages, all seem to be ok.
Has anyone had this fault before or dose anyone have an MPC 2k main board for sale?

Your screwed you shouldn't of soldered anything either. You can send it to VST or FOrat.

Thanks for the help, but My job is an electronic technician Repairing Pro Audio, with 20 years experience, so I think im fine to solder, but if I can't find a new main board, maybe I am screwed.

i run into parted out mpc's here and there on ebay. tho you may be better oft to just pick up a used unit.