I have a Daewoo Puma 10S with a Fanuc 10T control. Lathe has been punching and reading fine for last two years and has now started throwing the SR820 - DR OFF alarm. I have replaced the cable twice..no change. Tried it on a different computer..no change. Replaced both the 75188 and 89 IC's on main board (already had installed sockets from previous problem a couple of years ago with it not punching but would receive)....still same alarm. Also have made a cable with this pin out from a post from Dan Fritz :

25-pin male (Fanuc side) ----------- 9-pin female (PC side)

pin 1 --------------- shield
pin 2 ------------------------------- pin 2
pin 3 ------------------------------- pin 3
pin 5 ------------------------------- pin 7
pin 7 ------------------------------- pin 5
pins 6 and 8 ------------------------ pin 4

Stil doesn't work.... I have tried everything I know and have read on this forum and the internet. Any help would be GREATLY appreciated!!!!

Thanks,
Ken Herring