POLAKU2002 Posted March 30, 2011 Share Posted March 30, 2011 buna seara.acest monitor lcd se prezinta astfel:apare pe ecran sigla benq ptr 1 secunda dupa care dispare si reapare din nou sigla si tot asa apare dispare... Link to comment Share on other sites More sharing options...
ANDRASONI LUCIAN Posted March 30, 2011 Share Posted March 30, 2011 Schimbati electroliticii de pe placa sursa+invertor, obligatoriu noi la 105 grade. Refaceti lipiturile pe trafurile( sau traful, nu am o schema in fata) ridicatoare. Succes, de la Cluj, numai bine! Link to comment Share on other sites More sharing options...
FLORIN IORDACHE Posted March 30, 2011 Share Posted March 30, 2011 Buna seara ! Am vrut eu ca sa va atasez schema pentru acest monitor benq fp 731,dar este destul de mare are 5 mb si nu pot ca vi-o postez,dar nu este nici o problema puteti ca sa o descarcati de pe acest linck : http://elektrotanya.com/benq_fp731.rar/download.html . In dreapta jos pe pagina respectiva, apasati pe <> Mult succes ! Link to comment Share on other sites More sharing options...
POLAKU2002 Posted March 31, 2011 Author Share Posted March 31, 2011 multumesc ptr schema.am desfacut aparatul si am gasit un macellllllllll....4 2sc 5707 arsi,un condensator 27j/3kv pe care din pacate nul am in schimb am 2 de 25j/3kv si unul de 27k/3 kv nu am cu ce sa masor valorile....as putea pune in paralel cele 2 de 15j?sau sa pun cel de 27 k? ca de unde lam scos e tot de la lampi..si inca nu sa terminat macelul verific mai departe... Link to comment Share on other sites More sharing options...
Toni Marginean Posted March 31, 2011 Share Posted March 31, 2011 Puneti-l pe cel de 25j/3kv. Spor la treaba! Link to comment Share on other sites More sharing options...
POLAKU2002 Posted March 31, 2011 Author Share Posted March 31, 2011 am gresit vroiam sa spun ca am 2 de 15j/3kv pe care vroiam sa intreb daca pot sai pun in paralel Link to comment Share on other sites More sharing options...
Toni Marginean Posted March 31, 2011 Share Posted March 31, 2011 Sigur ca poti sa-i montezi in paralel. Link to comment Share on other sites More sharing options...
POLAKU2002 Posted March 31, 2011 Author Share Posted March 31, 2011 multumesc tuturor.functioneaza.am sal las in probe vreo 3 ore. Link to comment Share on other sites More sharing options...
ANDRASONI LUCIAN Posted March 31, 2011 Share Posted March 31, 2011 Nu inchideti aparatul fara sa verificati( eventual chiar inlocuiti) condensatorii C754, C755, C734, C735-0,15uF/160V , care pot sa va spun din experienta , la astfel de monitoare sunt destul de probabil compromisi. Succes, de la Cluj, numai bine! Link to comment Share on other sites More sharing options...
soulraven Posted December 29, 2011 Share Posted December 29, 2011 am facut rost de un monitor benq FP731, aparent merge doar ca apare imagine alba cu cu cateva dungi subtiri rgb, ca si cum panglica nu ar fii bine pusa. l-am desfacut dar aparent nu are nimic ars.Aveti idee de la ce poate fii? dupa ce apare alb dupa 2-3 secunde trece in protectie.ce poate fii? Link to comment Share on other sites More sharing options...
leoncris Posted December 29, 2011 Share Posted December 29, 2011 Masoara tensiunile din sursa si invertor.Ceva C_uri ... gravide ? Link to comment Share on other sites More sharing options...
soulraven Posted December 29, 2011 Share Posted December 29, 2011 nope, vizibil nu pare nici unu "gravid"ai exact idee pe unde sa masor.nu prea se potriveste schema cu ce am eu pe placa, unele componente lipsesc, dar am reusit sa masor tensiunea la V-inverter PF751(siguranta de 3A) si am doar 12V.pe R703 am 14Vpe L751 8,5V Link to comment Share on other sites More sharing options...
soulraven Posted December 29, 2011 Share Posted December 29, 2011 LE. R610 si ZD601 (zenner 15V) pe ele am -5V ~ -5,5Vpe conectorul care duce catre placa logica, tensiunea este de 3V si 5V. Link to comment Share on other sites More sharing options...
soulraven Posted January 10, 2012 Share Posted January 10, 2012 are cineva idee ce ar putea fii? ce sa mai verific?condesatori umflati nu sunt, vizibil nu are sa fie nimic in neregula, dar am imagine alba pe panoul lcd.am verificat si cabluri, conectica totul este in regula Link to comment Share on other sites More sharing options...
leoncris Posted January 10, 2012 Share Posted January 10, 2012 Schimba C 703,704,712 si refa masuratorile din sursa + conector CN701. http://elektrotanya.com/benq_fp731.rar/download.html Link to comment Share on other sites More sharing options...
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