I've unsoldered the 74SL04N UD2 and put a new old one in and now i get this.
chequred pattern with video ram out
solid screen with character rom out
These are the correct patterns! So the the UD2 inverter was bad? It supplied the 8 MHz clock to the video data shift register circuits and would explain the loss of video.
why are two legs cut on the UD2 ? any idea?
They are not cut on my 8032. Sabotage??
What about burning smell on video board?