Guest vasea Posted October 31, 2009 Share Posted October 31, 2009 Manifestare defect: La actionarea intrerupatorului de retea se aprinde LED-ul de stand-by dar televizorul nu porneste, apasand P+ de pe panou se stinge pt o fractiune de secunda LED-ul de stand-by dar etajul de BH nu intra in functiune. Am intrerupt traseul de alimentare spre BH imediat dupa punctul de interconectare dintre R803 si R 820 si am pus un bec de 220 V / 75 W.Actionand intrerupatorul de retea becul se aprinde tensiunea este de 123 V timp de aprox 3 sec dupa care aceasta coboara la valoarea de aprox 90 V., practic tv-ul intra in stand-by.Am masurat tensiunile livrate de sursa in acel interval de 3 sec si acestea sunt corecte, nu am supraconsum in sursa, dar nu inteleg de ce tv-ul intra in aceasta stare de stand by.(la pornire semnalul DECDIG livrat de procesor la pinul 115 este high dupa aprox 3 sec trece in low).Va rog un sfat prietenesc in rezolvarea acestei pb.Atasez si schema tv-ul.Daca cineva ma poate ajuta cu un dump pt modelul TX-21PZ1P multumiri anticipate.[attachment=0]TX-21PZ1.pdf[/attachment] Quote Link to comment Share on other sites More sharing options...
MoshuLeo Posted October 31, 2009 Share Posted October 31, 2009 Incearca acest dump.Bafta. Quote Link to comment Share on other sites More sharing options...
giany Posted October 31, 2009 Share Posted October 31, 2009 sa nu fie trafo linii este un defect frecvent la acest sasiu dar diagonala mare Quote Link to comment Share on other sites More sharing options...
Guest vasea Posted November 7, 2009 Share Posted November 7, 2009 Am folosit dump-ul dat de MoshuLeo si tv-ul a pornit, dar mai am o problema : imaginea pe verticala nu este centrata. Cunoaste cineva cum se intra in SM la acest tv ? Quote Link to comment Share on other sites More sharing options...
codrin Posted November 7, 2009 Share Posted November 7, 2009 MUTE de pe tlc si V- de pe panoul frontal asasate simultan SUCCES! Quote Link to comment Share on other sites More sharing options...
Guest vasea Posted November 8, 2009 Share Posted November 8, 2009 MUTE de pe tlc si V- de pe panoul frontal asasate simultan SUCCES! Service mode is entered by selecting the ?mute? remote key and local ?down? simultaneously with the sharpness DAC set to Minimum and programme position 99 selected.Service mode 2 is selected by pressing the Recall remote key while in service mode 1. Service mode navigation - Up /Down remote keys :cycle through the service items available. - -/+ remote keys :Decrement/Increment the values within range. - TV/AV :Store the current data. - 0 ? 7 digit keys :Toggle bits 0-7 in option byte (service mode 2) Asta am gasit pe un site care, culmea, nu e al autoritatilor in domeniul reparatiilor tv. Si functioneaza !!! Quote Link to comment Share on other sites More sharing options...
codrin Posted November 9, 2009 Share Posted November 9, 2009 MUTE de pe tlc si V- de pe panoul frontal asasate simultan SUCCES! intradevar , am uitat, grabindu-ma, sa precizez ca se comuta pe pr 99 si se da claritatea la minim. scuze, era o ora tirzie. imi pare bine ca-i insistat si s-a rezolvat. Quote Link to comment Share on other sites More sharing options...
djmanson84 Posted February 11, 2015 Share Posted February 11, 2015 Daca se mai uita cineva pe acest topic : Am un tv panasonic CP-521FS dar la mine dupa ce il deschid de la butonul de retea se aprinde ledul de ST BY dupa 4-5 secunde si sta aprins 2-3 secunde , si se intampla treaba asta ciclic cam la 10 secunde . Practic sursa nu prea vrea sa porneasca. Scurturi la iesire din sursa nu am . BO pare sa fie ok , am pus si bec si tot nu porneste sursa . Cat timp mi se aprinde ledul am cam toate tensiunile ok 120V B+ si celelalte dupa care scade pana pe la 70V . Inalta nu o ia deloc . Sa fie dus IC-ul din sursa STRW6753 sau sa fie tot o problema de DUMP ? Quote Link to comment Share on other sites More sharing options...
dan cod Posted February 11, 2015 Share Posted February 11, 2015 Poate fi si dump,poate fi si sursa si chiar finalul linii. Quote Link to comment Share on other sites More sharing options...
Florinel TV Posted February 11, 2015 Share Posted February 11, 2015 driveru se alimenteaza Quote Link to comment Share on other sites More sharing options...
dan cod Posted February 11, 2015 Share Posted February 11, 2015 Daca are SE ala e primul suspect. Quote Link to comment Share on other sites More sharing options...
djmanson84 Posted February 12, 2015 Share Posted February 12, 2015 Alimentare la tranzistorul driver este 11v cat este ledul stins , in momentul in care se aprinde (ros) ledul 1-2 secunde scade tensiune de pe tranzistor la 5v . Ce este "SE"? Quote Link to comment Share on other sites More sharing options...
dan cod Posted February 12, 2015 Share Posted February 12, 2015 Amplificatorul de eroare si este in secundar sursa.TVul asta nu are C430 in final linii?daca da schimba-l. Quote Link to comment Share on other sites More sharing options...
djmanson84 Posted February 12, 2015 Share Posted February 12, 2015 Rezolvat Tv-ul prin inlocuire STRW si rezistenta de startup 100k ( care "era si nu prea era" buna ) Quote Link to comment Share on other sites More sharing options...
mercenarx Posted March 29, 2019 Share Posted March 29, 2019 (edited) salutare , am si eu tv-ul asta , care se opreste singur aleatoriu si ramane asa (dar ledul st-by ramane stins , deci tv-ul nu trece in st-by) am schimbat toti condesatorii de filtraj care mi s-au parut ca au riplu verificati cu osc , si face la fel as incerca un dump, sa elimin si posibilitatea asta. exista vreunul verificat ? thx! Edited March 29, 2019 by mercenarx Quote Link to comment Share on other sites More sharing options...
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