Guest cristimar Posted January 30, 2013 Share Posted January 30, 2013 Va salut , am urmatoarea problema : am un tv watson si de o bucata de vreme imi arde periodic un Bu 808 dfx , am inteles ca e tot un saiu Vestel care ar fi problema si rezolvarea ? Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted January 30, 2013 Share Posted January 30, 2013 Cred ca nu ai citit tot topicul : > citat >Tranzistorul final linii se arde repetat = se inlocuieste c683 cu 22uf-47uf/63v > l-ai schimbat ?? Quote Link to comment Share on other sites More sharing options...
rogen Posted January 30, 2013 Share Posted January 30, 2013 C683 ? Este cumva C613 , 10uF/50V din baza BU808 ? Imi cer scuze ,schema este de 11AK30A11. Quote Link to comment Share on other sites More sharing options...
dan cod Posted January 30, 2013 Share Posted January 30, 2013 Ala este C613.Pune unul de calitate Quote Link to comment Share on other sites More sharing options...
Guest Posted January 30, 2013 Share Posted January 30, 2013 Da, corect e C613, scuze de greseala, mi-o asum. Poti pune si 100uF/150v/250v, nu e nicio problema.Mai jos ai schema: Quote Link to comment Share on other sites More sharing options...
Guest cristimar Posted January 31, 2013 Share Posted January 31, 2013 Imi cer scuze ,intai am scris si dupa aia am citit topicul , va multumesc! Quote Link to comment Share on other sites More sharing options...
Guest levis36 Posted January 31, 2013 Share Posted January 31, 2013 seg ctv 1451xt ledul nu se aprinde Q801 in scurt, am pus altul si nimic Quote Link to comment Share on other sites More sharing options...
dan cod Posted January 31, 2013 Share Posted January 31, 2013 Pai ia-le metodic.300V ai?pe condul mare?alimentare CI exista?mari sanse sa fi crapat si CIul. Quote Link to comment Share on other sites More sharing options...
Guest levis36 Posted January 31, 2013 Share Posted January 31, 2013 am rezolvat. multumesc, am schimbat toata electronica si cablaraia de la alt televizor cu ecranul spart. Quote Link to comment Share on other sites More sharing options...
naebv Posted February 16, 2013 Share Posted February 16, 2013 Alt defect mai rar dar destul de "neasteptat" la 11AK30 varianta stereo este intreruperea quartzului de 18MHz la MSP. Defectul se manifesta prin lipsa sonorului, disparitia din meniul de sunet a functiilor de balans, egalizator, efect deoarece procesorul nu mai comunica cu MSP-ul si ca atare comuta pe varianta mono. Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted February 26, 2013 Share Posted February 26, 2013 http://arizanotlari.com/Semalar/Tv/crt/ ... enleri.pdf Quote Link to comment Share on other sites More sharing options...
niki4 Posted April 10, 2013 Share Posted April 10, 2013 Tv-ul functiona normal dar nu facea st-by.Am gasit mcr22 si d802 scut ,dupa inlocuire tv nu mai porneste.U pe 827 de 4700uf oscila in in jur de 6,8-8v iar led-ul rosu parca "fierbea"cand lumina mai slab cand mai intens.Dupa mai multe verif si inlocuiri de componente am gasit R 807 0r22 cu valoarea marita.Dupa inlocuirea acesteia totul a intrat in normal.Deci atentie la R807 pe care nu prea avem cu ce sa o masuram exact. Quote Link to comment Share on other sites More sharing options...
gabibota Posted April 12, 2013 Share Posted April 12, 2013 Tv-ul functiona normal dar nu facea st-by.Am gasit mcr22 si d802 scut ,dupa inlocuire tv nu mai porneste.U pe 827 de 4700uf oscila in in jur de 6,8-8v iar led-ul rosu parca "fierbea"cand lumina mai slab cand mai intens.Dupa mai multe verif si inlocuiri de componente am gasit R 807 0r22 cu valoarea marita.Dupa inlocuirea acesteia totul a intrat in normal.Deci atentie la R807 pe care nu prea avem cu ce sa o masuram exact.Daca ai ESR-CX cu afisaj LCD, prezentat pe forum ,este util sa masori rezistente sub 1 Ohm. Quote Link to comment Share on other sites More sharing options...
davidut5 Posted June 12, 2013 Share Posted June 12, 2013 Pot inlocui c811 cu unul cu poliester? Nu gasesc in oras, si nici prin debara nu am nimic.Am un 33nf 500v cu ppr, daca valoarea nu e critica.Multumesc. Quote Link to comment Share on other sites More sharing options...
Toni Marginean Posted June 13, 2013 Share Posted June 13, 2013 Pot inlocui c811 cu unul cu poliester? Nu gasesc in oras, si nici prin debara nu am nimic.Am un 33nf 500v cu ppr, daca valoarea nu e critica.Multumesc.Se poate monta dar tensiunea este cam la limita. Poate aveti alte valori de condensatori la 630V si-l faceti din doua bucati legate in paralel. Quote Link to comment Share on other sites More sharing options...
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