'ye olde' friend 
whats up with the JD lamps, matrix or GI, i had a couple of JD lamp dramas i remember well!!
(ones real funny!!! read:sad!!!)
let me know if i can assist in the 'curve'
regards
Hi Christian,
Lay off the OLDE bit eh?
Few little things with JD. GI had a missing string. Pulled out the board and it turned out to ba a bad repair where the plated through hole was stripped out. Fixed that with a jumper. Had a few minor probs with trough optos, but that was only connectors.
The only outstanding problem is the lamps. At the moment when tested one at a time all the lamps in col 1-6 activate the bottom lamp in that same col, and 71 lights 81 as well, 72 lights 82 as well etc & vica versa. Also lamps 78 and 88 are not working. Getting there slowly. I picked up the schematics and am working my way through the problems. Tough to find the time right now.
Dave.
