fane Posted October 24, 2016 Share Posted October 24, 2016 Am la reparat o boxa activa china cu finali pe tranzistori.e schema ordinara si are finalii arsi.Cred ca au mai fost schimbati pentru ca e ceva ciudat are tr.D834 si D880, ciudat este ca gogu mii da unul ca fiind darlington NPN si celalalt normal NPN in montaj fiind unul cu colectorul la + iar celalalt cu colectorul la - ceva fara logica daca amindoi sint npn.Are vreun coleg idee care sint finalii realii reali in chinezariile astea sau macar ceva echivalent? Quote Link to comment Share on other sites More sharing options...
surubarila Posted October 24, 2016 Share Posted October 24, 2016 Sanatate permanenta ! Pune o poza cu boxele (banui ca una contine alimentarea si amplif-ul iar cealalta doar dif-uri) si cu placa AF.Daca seamana cu ce am reparat acu' vreo saptamana incerc sa te ajut. Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted October 24, 2016 Share Posted October 24, 2016 Dupa cite imi aduc eu aminte ca nu am mai reparat de mult boxe chinezesti eu am gasit finalii acestia ca fiind finalii originalii ce nu a fost umblat in boxa decit de mine pentru prima data , 2SB817 si 2SD1047 Ar fi buna o poza cu placa , daca o vad si sunt la fel cu ce am avut eu atunci o stiu dupa o poza , daca este la fel si cu acesti finalii Quote Link to comment Share on other sites More sharing options...
adydep Posted October 25, 2016 Share Posted October 25, 2016 TIP35C/TIP36C sau BD249/BD250 iar la prefinalii merge 5551/5401 Quote Link to comment Share on other sites More sharing options...
fane Posted October 25, 2016 Author Share Posted October 25, 2016 (edited) atasez poze cu partea audio, prefinalii sint buni doar un final ea trasnit din cei doi scosi nu pot atasa max 500kb iar poza are 910 Edited October 25, 2016 by fane Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted October 25, 2016 Share Posted October 25, 2016 http://postimage.org/ incarca aici si pune linku Quote Link to comment Share on other sites More sharing options...
fane Posted October 25, 2016 Author Share Posted October 25, 2016 (edited) link poze:https://postimg.org/image/7q0j246f7/ https://postimg.org/image/e1oklaxnp/ https://postimg.org/image/vu28cfczl/ Edited October 25, 2016 by fane Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted October 25, 2016 Share Posted October 25, 2016 link pozehttps://s18.postimg.org/lfhttps://s13.postimg.org/rc59enj1z/20161025_085735.jpgefms6vd/20161025_085802.jpghttps://s15.postimg.org/kd2qdniuz/20161025_085701.jpg Nu este pusa corect poza Quote Link to comment Share on other sites More sharing options...
surubarila Posted October 25, 2016 Share Posted October 25, 2016 Mi-am adus aminte , finalii erau cei mentionati de Florin si prefinali 5551/5401 cum a zis d-l Andrei. Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted October 25, 2016 Share Posted October 25, 2016 Urmezi urmatori pasi , apesi alege imaginile , dai clic pe poza din pc , apoi se incarca , dupa copii linku de la ramura Leg?rtur? rapid? pentru forumuri: este un folder la urma acestui link dai clic stinga si sa copiat apoi pe forum apesi clic dreapta si dai inserati , si gata treaba Quote Link to comment Share on other sites More sharing options...
fane Posted October 25, 2016 Author Share Posted October 25, 2016 am reusit dar in postul de mai sus editat Quote Link to comment Share on other sites More sharing options...
surubarila Posted October 25, 2016 Share Posted October 25, 2016 Seamana destul de bine cu ce am avut eu. Am pus A1941/C5198.Verifica toti tranzistorii "mici" scosi din montaj , au o configuratie tare ciudata si masuratorile direct pe placa te pot pacali. Quote Link to comment Share on other sites More sharing options...
fane Posted October 25, 2016 Author Share Posted October 25, 2016 Seamana destul de bine cu ce am avut eu. Am pus A1941/C5198.Verifica toti tranzistorii "mici" scosi din montaj , au o configuratie tare ciudata si masuratorile direct pe placa te pot pacali. beleua e ca finalii menionati de colegi sint in capsula sot93 iar eu am avut cu capsula TO220 asa e si locul pe placa si pe radiator Quote Link to comment Share on other sites More sharing options...
adydep Posted October 25, 2016 Share Posted October 25, 2016 Atunci monta?i BD243C/BD244C.Ampliful ?sta chinezesc merge cu multe variante de finali.Eu am pus ?i KT818/KT819( Quote Link to comment Share on other sites More sharing options...
winstyle Posted October 25, 2016 Share Posted October 25, 2016 (edited) Pune BD651/BD652 dac? acei finali pe care ii inlocuie?ti sunt finali darlington , sau BD911/BD912 dac? sunt ''simpli'' . Ca prefinali merg si BD139/BD140 , chiar dac? au alte capsule dec Edited October 25, 2016 by winstyle Quote Link to comment Share on other sites More sharing options...
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