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Equipment Repairs => LCD TV forum => Topic started by: WILLYAM1 on December 23, 2012,12:33:04

Title: lg 37''.
Post by: WILLYAM1 on December 23, 2012,12:33:04
hi.
got this tv with entermietent backlight problem somtime by powering gotthe pic and somtime no backlight no 24v 12v and more.
anyone got a schematic for P.S EAY4050500.
seems to me that the problem is ic NCP1396EG OR AROUND CIRCET OR IC SG6961 PFC .
BY SCOPING notics that the vcc 15v is with a littel ripple i chnged all capi in primery section but no joy.
also the volttage in the 2 main capi is 320v seems to me that it sould be around 400v.
any adia?.
willyam1