Recap of what was done:
Replaced all the big chips including ROM from a working system MMU has been swapped Memory chips have been installed from a working system Different keyboard was used Address lines verified from CPU to Memory addressing chips Re soldered address line joints XL self test shows good SALT RAM test shows good Basic XL gives error -14 when hitting enter. Mac/65 gives an inverse-heart symbol, syntax error Ballblazer came up and looks normal Zorro booted and played music, but the screen was corrupted...