tiby_1981 Posted January 15, 2012 Share Posted January 15, 2012 Buna ziua.Am acest tv construit cu urmatoarele componente:sursa STR W6553,procesor TDA11106PS/V3/3/AQ6,vertical LA78040 sasiul cred ca este P1470A03.Manifestare initiala.Sursa scoatea pe U1-10V.Am schimbat TL431 si optocuplorul PC817.Acum sursa o ia din loc insa insa tensiunea variaza incontinuu intre 110V se duce la 165V cade la 0 suie la 70v si tot asa,tensiunile mici variaza si ele.Aceasi manifestare o o are si cu finalul lini deconectat.Are cineva schema acestui tv?Este cu releu si nu stiu foarte sigur cum functioneaza acesta.a multumesc anticipat. Link to comment
naebv Posted January 15, 2012 Share Posted January 15, 2012 Schimbati electroliticii din sursa. Releul este probabil pentru demagnetizare, la fiecare pornire din stand-by cupleaza bobina de demagnetizare la termistor. Link to comment
tiby_1981 Posted January 15, 2012 Author Share Posted January 15, 2012 Are un sigur electrolitic de 22 micro/63v pe care l-am schimbat de prima data. Link to comment
naebv Posted January 16, 2012 Share Posted January 16, 2012 Daca ati verificat componentele pasive din sursa, schimbati si STRW6553. Link to comment
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