Jump to content
ELFORUM - Forumul electronistilor
traianpop

Teletech RM36

Recommended Posts

Problema la acest tv:lipsa imagine(ecran alb-laptos),tensiunea pe iesirea(pin 15) TA 7680=0 v(in loc de cca.4 v),tensiune pe catozi=cca 75 v.Vreo idee?IC croma=TA7698,sursa clasica,cu tranzistori...

Daca n-ai reparat inca tv-ul , incerc sa-ti dau cateva idei: Sa fie 12V nu 10 sau 9 pe tensiunea de alimentare a sel. , cc. , croma si oriunde s-ar mai folosi in tv.Tensiunea de alimentare a finalilor video sa fie filtrata si peste 150-160V , de fapt toate tensiunile sa fie filtrate.Daca toate acestea sunt in regula verifica piesele din jurul celor 2 integrate si apoi integratele.Astea sunt ideiile unui incepator, poate specialistii avansati de aici iti pot da detalii exacte.
Link to post
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