Yes. Unfortunately it doesn't reveal any helpful information. I'd now start investigating the dead switches. You say 18,28,38,and 48 don't work. I assume that 58,68,78, do.
If that's the case, then you have a break in the white grey wire at ANY of the pre-mentioned switches ending in 8. Each switch will have two white-grey wires to each tab except for the one which at the end of the line. Carefully check each switch involved. Once this is done, we can attack the reset.
Reset. Do you get any message on the display or noise, or just a quick reset. Which switch(es) cause reset ?