Jump to content
ELFORUM - Forumul electronistilor

defect tv mivar

Recommended Posts

Am primit acest tv mivar 14M4,cu defectul nu porneste[mort],are sursa aparte langa sasiu,am schimbat tea2261 dar tot nu porneste,am decuplat sursa de sasiu si am masurat tensiunile in loc de 13v si 105v,am 144v si18v,,cand cuplez sursa de sasiu nu mai am nici o tensiune,sasiu CS1046/2, asa scrie pe sasiu,st92195b5b1/eet ,tda8840, tda8356,tda7056, tda6107,tea2261,24c01,ce pot face.

Link to comment
Share on other sites

Scoti BU2508 si pui un bec de 70W pe bara de 105V. Dai drumul la TV si masori tensiunile scoase de sursa.Daca scoate tensiuni bune, verifici/inlocuiesti tranzistorul BU2508 , schimbi condensatorul de cuplaj din baza si incerci iar. Trebuie verificati in general toti condensatorii electrolitici din sursa, finalul linii si baleiaj vertical, dupa un timp cam cedeaza. Daca nu ai ESR-metru, schimba-i ca nu-s multi si nici scumpi.

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.

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