Hello Friends,
i just received this tv from a customer, it came with red light blinking only, after i unscrewed it and did my voltage test, i found two 30f133 / one smk 0460/ one smd diode G5, after replacing them set didn't come up, so i continued my test and discovered on the ysus around the small transformer there is a test point of +15vf and +5vf, but the both test point is given me 137v but one strange thing is that when the flat cable linked to the ctrl board is connected to the ysus, the said voltage will start to move back and fort, i also found out that the big IC on the ctrl board is hot,
the green light on ctrl board is not on, before i foget, vs 200v va 55v and 18v m5v all ok. schematic and heil is welcome please
hispeck
i just received this tv from a customer, it came with red light blinking only, after i unscrewed it and did my voltage test, i found two 30f133 / one smk 0460/ one smd diode G5, after replacing them set didn't come up, so i continued my test and discovered on the ysus around the small transformer there is a test point of +15vf and +5vf, but the both test point is given me 137v but one strange thing is that when the flat cable linked to the ctrl board is connected to the ysus, the said voltage will start to move back and fort, i also found out that the big IC on the ctrl board is hot,
the green light on ctrl board is not on, before i foget, vs 200v va 55v and 18v m5v all ok. schematic and heil is welcome please
hispeck
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