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ion baciu+59

tv sasiu 29M03

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Va rog sa ma ajutati! Am un tv sasiu 29M03 care nu porneste. Tens. B1(110v) este aprox. 33v pulsatorie; tens. B3(190v) este aprox. 55v pulsatorie. Am schimbat optocuplorul, am mas. totul in alim. primar si m-am blocat. Poate are cineva o idee!Multumesc! :sparge:

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Posibil ai un consum marit.Verifica in primul rand sursa pe o sarcina artificiala. Posibil baleiajul orizontal si BV. Aadar primul pas sursa.

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Verificati/schimbati V511 si V512,R510,R520,R521 si C516 si bineinteles tot ce tine de partea primara a sursei

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Am gasit buba; R553 intrerupta. Am gasit-o dupa ce am scos RP551, sub un cocolos de ceara de fixare. Va multumesc din suflet pentru sfaturile date! Va doresc un an cu multe realizari! :aplauze

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