Jump to content
ELFORUM - Forumul electronistilor
Guest stefaneli_24

Tv Hermes cu probleme

Recommended Posts

Guest stefaneli_24

salut.Am o problema cu un Tv Hermes. Ii dau sa caute programe si imi gaseste decat vre-o 7.Mentionez ca sunt abonat cablu si normal ar trebui sa fie 25-30 programe.Cablul este OK pentru ca am si alte televizoare in casa si pe acelea prind tot pachetul de programe.Aveti idee ce ar putea avea?

Link to comment
Share on other sites

Mircea,imi permit sa te corectez,putin....Daca ,totusi ,gaseste vreo 7 programe,exclus "lipsa 33 V"Desigur ,varianta cu selector defect,sau defect comutator benzi,ramane!Daca e varianta cu LA 7910,nu e mare lucru sa fie defect chiar el...De asemenea,chiar si cablul de la spliter la tv,poate fi decalibrat...

Link to comment
Share on other sites

tens de 33 volti poate sa fie mica din cauza de ... alte motive ( zenner , devalorizare rez serie ) si atunci defectul e chiar acesta depanatorul in cauza trebuie sa ne precizeze daca dispar programele dintr-o anumita banda , din partea de sus a benzilor, etc

Link to comment
Share on other sites

daca cumva trece peste programe, posibil circuitul de CAF.daca pur si simplu nu le gaseste aproape sigur ori nu-ti functioneaza decat una sau doua benzi ale selectorului(probabil ca nu au alimentare cu 12v) ori dioda zenner de 33v este devalorizata :smt006

Link to comment
Share on other sites

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines