Question about Hitachi Televison & Video
Pls. open H-output trangister and out side of pcb and check voltage B+ 135v dc is ok ?.
if yes.then ...H-OUTPUT trangister checked and replace
if not then check SMPS .
1st fuse is open then check rectifier dyode cantunity. if sort then replace all 4 dyode.(rectifier)
and if dyode is ok .then check STR cantunity is sort then Replace with New STR but 1st 220uf/450v dc capaciter cheked / 2nd. in SMPS stage any P.F and capciter likage or sort cheked or chenged first after the NEW STR use
*. note: smps pcb checkd any dry canaction pls. Resolder first.
Posted on Oct 04, 2009
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Posted on Jan 02, 2017
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