doru tv Posted December 19, 2012 Share Posted December 19, 2012 Salut, am o problema ciudata cu vestitul sasiu 11ak30. A venit cu cadrele defecte ( ic600) si c610 uscat. Am inlocuit c631, c644, c610, d602, d610. Tensiunea de alimentare este de 26v iar problema este cu desfasurarea, care este de 3-4cm, miscandu-se neordonat in sus si in jos. Ce probleme credeti ca ar fi si ce ar mai trebui verificat? Multumesc anticipat! Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted December 19, 2012 Share Posted December 19, 2012 Ai doi tranzistori smd in baleiaj vertical> verifica !! Quote Link to comment Share on other sites More sharing options...
doru tv Posted December 19, 2012 Author Share Posted December 19, 2012 Am verificat tranzistorii si sunt ok. Quote Link to comment Share on other sites More sharing options...
dan cod Posted December 19, 2012 Share Posted December 19, 2012 Din service se poate modifica dimensiunea? Quote Link to comment Share on other sites More sharing options...
doru tv Posted December 19, 2012 Author Share Posted December 19, 2012 Imaginea este desfasurata cca 3-4 cm si vibreaza pe ecran. Tensiuni pe pinii integratului: pin1=16.4-16.8vpin2=25.2vpin3=4.2vpin4=7vpin5=4.3vpin6=gndpin7=1.2-1.4vpin8=2vpin9=4.3vpin10=25.9vpin11=0vNu pot sa-mi dau seama ce se intampla. Mentionez ca am schimbat 2 integrate TDA 8174aw, care au fost verificate pe un alt sasiu. Quote Link to comment Share on other sites More sharing options...
doru tv Posted December 19, 2012 Author Share Posted December 19, 2012 bobina de deflexie v am verificato are 9ohm,am dato afara si vizibil pare ok,posibil stv-ul defect? Quote Link to comment Share on other sites More sharing options...
naebv Posted December 19, 2012 Share Posted December 19, 2012 Inlocuiti R627=1,8ohmi, C608=47nF, C615=1000uF; verificati R630=8,2M. Quote Link to comment Share on other sites More sharing options...
PINTI Posted December 20, 2012 Share Posted December 20, 2012 Mai ai acolo o dioda 1N4007. Masurata in montaj pare buna. Dupa inlocuirea ei rastrul se va desfasura. Succes. Quote Link to comment Share on other sites More sharing options...
ionbel1 Posted December 20, 2012 Share Posted December 20, 2012 Verificati si rezistenta dintre pinii 8si 9 R 619 . Quote Link to comment Share on other sites More sharing options...
naebv Posted December 20, 2012 Share Posted December 20, 2012 Mai ai acolo o dioda 1N4007. Masurata in montaj pare buna. Dupa inlocuirea ei rastrul se va desfasura. Succes.In prima postare este mentionat ca D602 (=1N4007 intre pinii 10 si 2 la IC600) a fost schimbata... Quote Link to comment Share on other sites More sharing options...
BUGHIU Posted December 20, 2012 Share Posted December 20, 2012 Daca se misca neordonat,posibil sa aveti ceva contacte imperfecte sau rezistente/cablaj fisurate !! Quote Link to comment Share on other sites More sharing options...
Mihai78 Posted January 25, 2015 Share Posted January 25, 2015 Va salut. Aceeasi problema o am si eu cu un 11AK30; am reparat defect linii BU si cond; a mers 30 de min dupa care imaginea s-a ingustat si am rastru doar 5 cm desfasurat in partea inferioara(intai apare dunga orizontala si la 5 sec se desfasoara) ; am schimbat conzi, integrat cadre , 1n4007 ; ce as mai putea verifica? Multumesc Quote Link to comment Share on other sites More sharing options...
dan cod Posted January 25, 2015 Share Posted January 25, 2015 Tensiuni bune?Di service mișca ceva? Quote Link to comment Share on other sites More sharing options...
Mihai78 Posted January 25, 2015 Share Posted January 25, 2015 Cam asa arata tensiunile : pin1=10,8vpin2=10,3vpin3=4.7vpin4=6,5vpin5=4.3vpin6=0pin7=5,6vpin8=6,5vpin9=4.1vpin10=26vpin11=0v In service nu am intrat....mentionez ca are un cablaj execrabil Quote Link to comment Share on other sites More sharing options...
modoran Posted January 25, 2015 Share Posted January 25, 2015 Dioda 1N4007, cea dintre pinii 10 si 2 intrerupta sau cablaj fisurat. Ai mentionat ca ai schimbat-o, dar logica spune ca ea este intrerupta. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.