Jump to content
ELFORUM - Forumul electronistilor

anulare protectie OZ964GN


 Share

Recommended Posts

buna seara.

care este modalitatea de anulare a protectiei?

am incercat sa-l "pacalesc" cu un led din pinul 4 la masa dar nu functioneaza.

exista alta modalitate sau am omis ceva?

multumesc anticipat.

 

 

Link to comment
Share on other sites

buna seara.

era arsa siguranta smd f1,cea din zona oz964g.

siguranta f2 de deasupra conectorului era ok.

cu led din pinul 4 la masa(polarizat direct) functioneaza fara o lampa deci se confirma cele spuse de colegi.

multumesc tuturor colegilor..

Edited by bobo
Link to comment
Share on other sites

  • 1 year later...

Salut.

Stie cineva cum se anuleaza protectia la acest invertor: VIT71037.50 LOGAH REV.1, metoda cu led la pinul 4 sau 10(OZ964SN) am incercat-o, dar fara rezultat, gasisem odata pe un forum ceva asemanator, unde anularea se facea prin deconectarea unor pinii la LM339, dar nu mai dau de acel forum.

 

Samsung LE37A557P2F

CI-urile de pe Invertor:

U1=LM339

U2=OZ964SN

U3=LM324

post-237484-0-71379300-1460643446_thumb.jpg

Edited by Guest
Link to comment
Share on other sites

Ai 5V in pinul 5 ?

C8 , inlocuit ?

 

Tv-ul functioneaza perfect 3-4 ore dupa care invertorul intra inexplicabil in protectie, ramine doar sunet-ul, mentionez ca am verificat lampii, chopper-e, c-urile de pe invertor, sursa e ok......., si culmea e ca doar cu capacul(tv) pus face aceasta manifestare, fara capac nu se mai opreste. Dupa intrarea in protectie a invertor-ului ramine 5v la pin-ul 5(OZ964SN).

Link to comment
Share on other sites

A testat cineva schema de mai jos, pe invertoare, care in afara de OZ964 mai are si alte integrate?(LM339, LM324........etc). Zice ceva rusu-l aici "В LCD LG 32LK330-ZB Инвертор VIT71884.00 REV:2.LOGAH (OZ964 + LM339) победить не удалось, то работает, то нет, но удалось отключить защиту только одновременно по 4 и 10 ногам. По отдельности защита не блокировалась", dar din traducerea google nu poti pricepe nimic.

 

 

 

post-237484-0-32539000-1460653841_thumb.jpg

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.

 Share

×
×
  • 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