Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
grasi

tv nikkai

Recommended Posts

buna dimineata am un tv nikkai  cu sasiu 11ak30a14 probema cu el este ca nu se aprinde tubul {filamentul } in rest el porneste se aude schimba programele numai ca nu se vede ,daca sa comfruntat cineva cu acest defect si ce ati gasit ? ,am schimbat conzii dar degeaba ,am zis bai e traful l am schimbat nimic o idee va rog cu ce sa incep 

Share this post


Link to post
Share on other sites

Eu cred ca acolo nu pleaca liniile deloc.Ceva recuperate ai masurat din linii?primul suspect C619.

Share this post


Link to post
Share on other sites

l am schimbat tot degeaba ,nu am nici cei 26v de pe cadre nu iese din traf si traful l am schimbat tot nimic pe colector la bu am 115v iar pe +b din traf am 130v 

Share this post


Link to post
Share on other sites

urmariti baza lui bu808,in multe cazuri se fisureaza calajul in baza lui,eventual dublati-l cu un fir,este prezent 115v pe colectorul 808? daca nu verificati  traseul de alimentare al trafo linii,atentie la condesatorul c619 de 100nf se recomanda schimbare cu unul de 150nf (personal montez 220nf)schimba-ti c613 10mf65v(50v) cu minim 22mf 63(personal montez 47 63v) verificati tranzistorul driver h .success

Edited by iuliantv

Share this post


Link to post
Share on other sites

Cum asa: 115v pe colector si 130v pe bobina trafo linii?!?!?! :84  Clar nu pornesc liniile.....!!!! Jungla este alimentata cu ...8v pe pinul 45....

Share this post


Link to post
Share on other sites

da jungla are intradevar tensiunea de  8v pe care o are 

Share this post


Link to post
Share on other sites

va multumesc sa rezolvat ,problema din stv2248

Share this post


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.

Sign in to follow this  

×
×
  • Create New...