Hi ! Have you guys experience problems using 74LSXX instead of 74XX in address bus? I'm trying to troubleshoot one Taito Moon Cresta board for months, and could not find the problem. I solve the garbage on the screen changing one 7408 at Data Line A5,A6 and A7 but now I have the screen filled with Zeroes and Ones. I was noticed by a friend that the 2114 is very speed sensitive, but I cant believe the 74LS08 is the guilty. I'm asking you guys because I don't have any good 7408 IC, I'll have to order it from USA and wait about 30 days to arrive. Thanks _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/