Guest Ionescu Grigore Posted October 5, 2016 Share Posted October 5, 2016 Buna ziua, vreau sa stiu exact de ce mi se arde in mod repetat(trei bucati),tranzistorul final de linii,din televizorul mentionat in titlul topicului.Tranzistorul pe care l-am gasit in tv. era BU808DFI,si mai scria pe el si ST Am inlocuit prima data cu BU508AFI,apoi cu BU508DFI,iar ultima data dupa unele recomandari cu C5388.Am primit alte recomandari,in sensul ca trebuie neaparat originalul BU808DFI,pe care sa scrie si ST. Astept raspunsuri exacte,pertinente,la subiect,fara alte mojicii si prostii cu trimiteri la spitalul de boli nervoase!!! Ionescu Grigore-electronist amator. Quote Link to comment Share on other sites More sharing options...
dan cod Posted October 5, 2016 Share Posted October 5, 2016 Daca vei primi sfaturi vei spune ca am vorbit prostii si am dat sfat rau asa ca eu ma aptin de a-ti mai da solutii.Cert e ca arderea lui are o cauza.Ai inlaturat efectul si cauza nu de aceea pana nu inlaturi cauza se vor arde orice tranzistor ai pune. Quote Link to comment Share on other sites More sharing options...
adydep Posted October 5, 2016 Share Posted October 5, 2016 Televizorul fiind marca "Hermes Slobozia",mai mult ca sigur că sincroprocesorul slobozește impulsuri de amplitudine prea mare în baza BU,ducând la arderea lui.P.S-ce am spus mai sus,este valabil numai pentru televizorul "electronistului amator",care nu cunoaște "vă rog",și "mulțumesc". Quote Link to comment Share on other sites More sharing options...
ovy83 Posted October 5, 2016 Share Posted October 5, 2016 (edited) electronist amator...nu-i problema,invatam...dar cu glas mai mic... celebrul BU 808DFI nu are ca echivalent in veci si nici atunci pe BU508 sau alte dracovenii. Da,C5388 merge da sa nu fie o pocnitoare de chinez. se inlocuieste pentru prima data vesnicul condensator de 10uf din baza acestuia dupa care pe pune un tranzistor bun.dupa care vedem ce mai are.asta pentru inceput. BU808 DFI=tr.darling.cu dioda,rezistor BU508DFI= tr simplu cu dioda si rezistor. Edited October 5, 2016 by ovy83 Quote Link to comment Share on other sites More sharing options...
iod2 Posted October 5, 2016 Share Posted October 5, 2016 nu studiaza nici macar tranzistoarele.....ca dupa imaginatie 508 e la fel ca 808 si treburi din astea,,, nici macar un simplu google nu a dat. Quote Link to comment Share on other sites More sharing options...
Guest Vera Vero Posted October 5, 2016 Share Posted October 5, 2016 Schimba si C613 cu 22-47 uf/63v,si pune Bu 808 dfx,C 5388,Bu 808dfi,la topicul cu 11ak30 este totusi o greseala, C613 este notat cu C683,la inceput. Quote Link to comment Share on other sites More sharing options...
dan cod Posted October 5, 2016 Share Posted October 5, 2016 Asta nu este AK30 clar. Quote Link to comment Share on other sites More sharing options...
iod2 Posted October 5, 2016 Share Posted October 5, 2016 (edited) dar ceva masuratori ai facut pacolo? tensinea b+? si asta ca daca are in linii 808 e ak30 e tare misto... Edited October 5, 2016 by iod2 Quote Link to comment Share on other sites More sharing options...
leoncris Posted October 5, 2016 Share Posted October 5, 2016 CEVA ASEMANATOR ... http://www.eserviceinfo.com/downloadsm/22343/Spectra_CTV2145M.html Quote Link to comment Share on other sites More sharing options...
Guest Vera Vero Posted October 5, 2016 Share Posted October 5, 2016 (edited) Fara detalii e greu. Edited October 5, 2016 by Vera Vero Quote Link to comment Share on other sites More sharing options...
dan cod Posted October 5, 2016 Share Posted October 5, 2016 Eu banuiesc ca este cel cu TEA2019 in sursa dar cred ca mesajul e scris ma mistocareala. Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted October 5, 2016 Share Posted October 5, 2016 Iar a inceput distractia Quote Link to comment Share on other sites More sharing options...
surubarila Posted October 5, 2016 Share Posted October 5, 2016 Eu banuiesc ca este cel cu TEA2019 in sursa dar cred ca mesajul e scris ma mistocareala. Acum multi ani am reparat un Hermes asamblat in Romania si avea sasiu Profilo SM1 , daca e asa nici vorba de 808 FL.Si eu cred ca e "bataille de jeu" , cine stie cum ne va mai poci numele pt. raspunsurile <inexacte si impertinente>.... Quote Link to comment Share on other sites More sharing options...
dan-a2 Posted October 5, 2016 Share Posted October 5, 2016 O schema aici cu BU 808 , vezi daca se potriveste >>> http://www33.zippyshare.com/v/abPFrNUK/file.html Quote Link to comment Share on other sites More sharing options...
surubarila Posted October 5, 2016 Share Posted October 5, 2016 Apai cine sa-l mai inteleaga ? Noi cautam , noi dam sfaturi si primim.... Quote Link to comment Share on other sites More sharing options...
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