attilaa0 Posted September 29, 2016 Share Posted September 29, 2016 (edited) Buna ziua!Acest tv are sasiu TH TDA11105B PCB.Am gasit D1555 (final linii)in scurt ,nu am avut la fel am pus 2SD2527DF. Inainte am facut testul cu becul ,tensiunile sunt OK, am verificat conzii.Par a fi in regula.Dar tv face urmatorul fenomen,vrea sa porneasca ,apar impulsurile pe baza la BU,dar face un sunet trrrrrr de 3 ori cu pauza,si nu porneste inalta.Eu banuiesc trafo linii ,in orice caz am masurat si tensiunea pentru microprocesor si nu are 5V are mai putin,dar am dat de la o sursa externa si acel sunet trrrrr a disparut ,dar inalta tot nu vine , si am masurat ca tensiunea de 180V este doar 60V.Acel sunet trrr se aude din in trafo linii. Ce parere aveti?Va multumesc! Eventual o schema mai buna daca are cineva ca al meu abia se vede. Edited September 29, 2016 by attilaa0 Quote Link to comment Share on other sites More sharing options...
BUGHIU Posted September 29, 2016 Share Posted September 29, 2016 Cadrele sant verificate(C482 ).....integrat...etc? Quote Link to comment Share on other sites More sharing options...
adydep Posted September 29, 2016 Share Posted September 29, 2016 Inlocuiți cond. de pe alimentarea pozitivă și negativă a cadrelor. Quote Link to comment Share on other sites More sharing options...
attilaa0 Posted September 29, 2016 Author Share Posted September 29, 2016 (edited) Ca sa elimin am scos afara ic cadre .dar face la fel. O sa incerc sa inlocuiesc conzii. Edited September 29, 2016 by attilaa0 Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted September 29, 2016 Share Posted September 29, 2016 Se prea poate sa nu mearga cu acest final linii , totusi incercati cu altul Quote Link to comment Share on other sites More sharing options...
adydep Posted September 29, 2016 Share Posted September 29, 2016 Dacă alimentarea cadrelor e cu zgomot,nu pornește tv-ul. Quote Link to comment Share on other sites More sharing options...
attilaa0 Posted September 29, 2016 Author Share Posted September 29, 2016 Am inlocuit conzii si tot la fel face. Quote Link to comment Share on other sites More sharing options...
dan cod Posted September 29, 2016 Share Posted September 29, 2016 De ce nu verifici traful pe tester? Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted September 29, 2016 Share Posted September 29, 2016 Deci cu acest final 2SD2527DF am facut mai demul verificarii si la multe tv-uri nu a vrut sa porneasca inalta , si de asta am zis sal inlocuiasca cu altul Quote Link to comment Share on other sites More sharing options...
dan cod Posted September 29, 2016 Share Posted September 29, 2016 Nu cred ca tranzistorul e de vina ci probabil traful sau comanda tranzistorului. Quote Link to comment Share on other sites More sharing options...
attilaa0 Posted September 29, 2016 Author Share Posted September 29, 2016 Am pus acum 2SD1555 si tot la fel face. Quote Link to comment Share on other sites More sharing options...
dan cod Posted September 29, 2016 Share Posted September 29, 2016 Normal .Verifica cumva traful de linii.Eu am postat pe forum mai demult ceva scheme de testere usor de facut. Quote Link to comment Share on other sites More sharing options...
winstyle Posted September 29, 2016 Share Posted September 29, 2016 (edited) Schimbă traful . Edited September 29, 2016 by winstyle Quote Link to comment Share on other sites More sharing options...
Giorgian tv Posted September 29, 2016 Share Posted September 29, 2016 cu siguranta este traful dus,in general se duc diodele din triplorul acestuia. Quote Link to comment Share on other sites More sharing options...
Guest Ionescu Grigore Posted September 29, 2016 Share Posted September 29, 2016 Buna seara, ca sa nu ma mai obosesc sa deschid alt topic(daca nu primesc raspuns...voi deschide!),vreau sa stiu ce final de cadre utilizeaza televizorul din titlul topicului,intrucat am si eu unul cu finalul crapat,si nu stiu ce scrie pe el!!!Astept raspuns URGENT!!! Ionescu Grigore-electronist amator. Quote Link to comment Share on other sites More sharing options...
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