nicuschiopu Posted March 11, 2015 Share Posted March 11, 2015 (edited) sasiu 11AK30 A14 defect ciudat am verificat sursa totul ok U1in regula 124v ca e tub flat porneste se face ledul verde pentru cateva secunde dar cat sta verde ledul palpaie si trece pe rosu am inlocuit ceurile pe U1 ceul din baza la BU am inlocuit si be-ul cu altul nou si acelasi defect va rog cateva solutii ca ma-m blocat nu stiu ce sa mai inlocuiesc sa functioneze va multumesc. Edited March 11, 2015 by nicuschiopu Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted March 11, 2015 Share Posted March 11, 2015 Filtrajele pe B+ inlocuite si cel de 4700uf (c 827 ), de verificat si C 811 din primar !! Quote Link to comment Share on other sites More sharing options...
dan cod Posted March 11, 2015 Share Posted March 11, 2015 Da MCRul jos sa vezi ce face. Quote Link to comment Share on other sites More sharing options...
nicuschiopu Posted March 11, 2015 Author Share Posted March 11, 2015 inlociut (c827)verificat C811 acelasi defect.am dat MCR-ul jos ledul trece direct in verde dar palpaie si nu porneste B.O. Quote Link to comment Share on other sites More sharing options...
tehtronics Posted March 11, 2015 Share Posted March 11, 2015 elimina legatura spre BO, pune bec si spune cum se comporta? Quote Link to comment Share on other sites More sharing options...
nicuschiopu Posted March 11, 2015 Author Share Posted March 11, 2015 (edited) am decuplat B.O.am pus bec porneste normal ledul sta pe verde face st-by U126v totul ok.dar am mai facut un artificiu am decuplat pinul trafului pe bara de U1 am pus becul pe pinul trafului si la masa am pornit ledul sta pe verde si am facut contact pe pinul trafului si tv-ul a pornit deci bu este bun in acest caz si la fel si trafu nu mai inteleg nimic .si daca fac lipitura la pinul trafului si scot becul din circuit nu mai porneste face defectul descris in topic. Edited March 11, 2015 by nicuschiopu Quote Link to comment Share on other sites More sharing options...
Nostalgic Posted March 11, 2015 Share Posted March 11, 2015 verifica C619 Quote Link to comment Share on other sites More sharing options...
nicuschiopu Posted March 11, 2015 Author Share Posted March 11, 2015 inlocuit C619 acelasi defect Quote Link to comment Share on other sites More sharing options...
mariantoader82 Posted March 11, 2015 Share Posted March 11, 2015 Verifica si baleiajul vertical. Quote Link to comment Share on other sites More sharing options...
nicuschiopu Posted March 11, 2015 Author Share Posted March 11, 2015 nu ai vazut ce am scris in topic mai sus domnule mariantoader82 facand acel artificiu a pornit ce treaba mai are B.V.? Quote Link to comment Share on other sites More sharing options...
nicuschiopu Posted March 11, 2015 Author Share Posted March 11, 2015 daca mai are cineva vreo solutie pentru acest defect rog sa o posteze in topic va multumesc. Quote Link to comment Share on other sites More sharing options...
dan cod Posted March 11, 2015 Share Posted March 11, 2015 Daca pui bec si liniile cuplate pleacă întotdeauna?fara MCR ai încercat? Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted March 11, 2015 Share Posted March 11, 2015 acolo ai conzi pe tensiunile mici cu defecte schimba c833 c829 c830 Quote Link to comment Share on other sites More sharing options...
sorinpavel Posted March 12, 2015 Share Posted March 12, 2015 Cond c811 din primar (47nF/630V) ? Succes Quote Link to comment Share on other sites More sharing options...
iuliantv Posted March 12, 2015 Share Posted March 12, 2015 R817 din B+ U1 la tub normal trebuie sa fie 99k fix daca este mai jos sau mai sus poate face figuri de acest fel,nu stiu ce valoare are la tub plat,este situata in katodul diodei b+ u1 ,cand a-ti facut artificiul si au pornit liniile avea-ti imagine corecta ? incercati si un dump sau memorie goala, este de luat in calcul si zona stby optocuplor tl431 condesatorul de 4700 16v stabilizatorul de 5v (in capsula bc 237 ex) Quote Link to comment Share on other sites More sharing options...
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