Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
ala micu

Orion LTPT32S ramane fara sunet aleator

Recommended Posts

Am gasit condul 22micro la 450volti cu esr 2,4ohmi masurat pe E0711 fata de 1,2 cat imi arata un alt cond de aceeasi valoare gasit prin casa.Conzii de pe 5v 12v 24 v arata bine masurati pe placa.merge de o ora ,oare doar atat sa fii avut?

Share this post


Link to post
Share on other sites

Tocmai a rama fara sunet,noroc ca am avut niste casti la indemana.Pe iesirea de casti are sunet,de aici m-a descurc.

Share this post


Link to post
Share on other sites

Castile au amplificare separata fata de difuzoare,pentru difuzoare este CI TPA3113D.Lucreaza in clasa D si are o gramada de protectii,la mine cred ca probleme imi face cea de scurt la iesire fiindca el lucreaza rece .Cand nu am nimic pe difuzor am semnal la intrare si dispare semnalul dreptunghiular de la iesireAm deslipit firele care duc la masa difurilor si vad ca de o ora merge,asta dupa ce am refacut lipiturile integratului.

Share this post


Link to post
Share on other sites

In datasheet-ul lui TPA3113D2 scrie ca pinul 1 SD nu se lasa in nici -un caz neconectat. Eu aveam 0,8v, cea ce nu era ok.Inca decand l-am pus in priza am observat ca nu se aprinde ledul de power,nu se aprindea nici cu tv mergand.Clientul a spus ca nu l-a observat vreodata aprins deci nu am vrut sa-l schimb suplimentar fata de defectul pentru care a venit televizorul.Tot oprindu-se sunetul am insistat si schimbat ledul care era ars,nu am pus bicolor ca nu aveam.am pus un led normal s-a conduca pe power on si ghici ce?A aparut 3,5 v pe pin 1 tpa care inseamna sunet enabled.Ce proiectare este asta?ce treaba are un led martor cu sunetul?

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...

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.