leo 17 Posted April 16, 2014 Share Posted April 16, 2014 la tv modelul mentionat ...tensiunea pe bara alimentare 97 v iar pe cea de 9v doar 4,4v ..am schimbat c diode ..si tot nu am tensiunea de 9 v ..in difuzor se aude un sunet puternic Quote Link to comment Share on other sites More sharing options...
Toni Marginean Posted April 16, 2014 Share Posted April 16, 2014 Deconectati alimentare trafo linii si vedeti daca se mai aude acel brum in difuzor. Quote Link to comment Share on other sites More sharing options...
leo 17 Posted April 16, 2014 Author Share Posted April 16, 2014 am deconectat trafo de linii am acelasi sunet in difuzor ..tensiunea la fel pe bara de alimentare 97v si cea pe 9v...o tensiune de 4,4v Quote Link to comment Share on other sites More sharing options...
BUGHIU Posted April 16, 2014 Share Posted April 16, 2014 Scoateti finalul audio(7103-TDA7052) afara sa vedeti apar cei 9v?!?! Quote Link to comment Share on other sites More sharing options...
leo 17 Posted April 16, 2014 Author Share Posted April 16, 2014 cand decuplez trafu de linii si pun un bec pe bara de alimentare ..am 8v si 97 pe bara sunetul e ok ..adica fara distorsiunea aia .deci sa fie traful de vina ?...totusi cand il cuplez trafu numi scade tensiuna pe bara Quote Link to comment Share on other sites More sharing options...
Meta-fizica Posted April 16, 2014 Share Posted April 16, 2014 Cat ai in colectorul lui 7523 ?L5524 este intreaga ? Quote Link to comment Share on other sites More sharing options...
BUGHIU Posted April 16, 2014 Share Posted April 16, 2014 Este sau nu FITsau filament cu sunet ''barait''(4,4v)?!?!Trafo linii poate sa aiba infasurari intrerupte ,nu neaparat in scurt, ca sa scada alimentarea.... Quote Link to comment Share on other sites More sharing options...
dan cod Posted April 16, 2014 Share Posted April 16, 2014 Daca e cu HR7527 mari sanse sa fie ala defect. Quote Link to comment Share on other sites More sharing options...
leo 17 Posted April 16, 2014 Author Share Posted April 16, 2014 cu distorsiuna in defuzor am 4,4 v si 97v pe bara ...deci e dus trafo Quote Link to comment Share on other sites More sharing options...
leo 17 Posted April 16, 2014 Author Share Posted April 16, 2014 fbt 7527 se poate inlocui cu hr 7527? Quote Link to comment Share on other sites More sharing options...
zvasile Posted April 16, 2014 Share Posted April 16, 2014 fbt 7527 se poate inlocui cu hr 7527?sigur ca se poate... Quote Link to comment Share on other sites More sharing options...
leo 17 Posted April 24, 2014 Author Share Posted April 24, 2014 am schimbat fbt 7527 am pus nou ,schimbat filtraje ..tot nu a vrrut sa porneasca tv .am gasit apoi una din diode ce alimenteaza tda 8305 arsa ,am schimbat o si am schimbat si tda apoi a pornit tv dar cu imagine alba si cu cursa inversa ..cand reglez screnul se intunica imaginea si nu am sunet Quote Link to comment Share on other sites More sharing options...
palcu ion Posted April 25, 2014 Share Posted April 25, 2014 probabil tda 8305 defect,sigur nu a fost nou Quote Link to comment Share on other sites More sharing options...
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