We have a Samsung Model TXJ3278 K51A chassis which had a shorted Horizontal Output transistor D5703 ..replaced it with a d1887 transistor ..This unit shorted in 20 seconds..I can find no tips on this chassis any help would be appreciated Alvin Rose Radio & Tv Centre Marystown, NL ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/