After looking at the schemo, fuse F850 fuses a +16 VDC source. I do not see either STK chip using this source, tho it goes to the area in general One part goes to a 3 terminal 12 volt regulator input who's 12v output seems to go to the DCU if I follow correctly. Need assist here! Phil. Philip Bader Jan Phyl TV Inc. (estab. 1976) 3420 Recker Hwy. Winter Haven, Fl. 33880 Fax (863) 299-8821 email: tjanphyl@xxxxxxxxxxxxxxx Phil Bader wrote: >I did a search in my email database for "Toshiba" + "F850". >Most of the hits were not my exact model, but similar,in that they had >F850 open. I take it F850 aparently is in one of the convergence power >supplies.General consensus is this fuse opens from bad solder on jumpers >on the convergence board (many) and/or bad converg. ICs (uses a pair of >STK392-110). Some techs got away with fuse changing and board jumper >resoldering, others, the STK's as well were needed. >Anything specific to my model with an open 5 amp F850 (SOC 5A pico fuse)?? >Thanks, >Phil Bader > > > ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app Email Archives: //www.freelists.org/archives/techassist/