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Tv LG 32ld420


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Salutare prieteni!

Acest tv trece din rosu un albastru ledul dar el nu se aprinde .

Tensiunile pe iesire din sursa sunt in regula mai putin cea de inv on,off.

Nu am nici sunet si nici imagine daca ma uit atent cu lanterna .

Aveti o schema ?

Sursa pcb:eax61124202/2

Placa da baza eax61354204(0)

Ce parere aveti?

 

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Am gasit ic407 ( mp2212din )prost . Intta in el 3,3,v si iese 350mv si ar fi trebuit sa iasa 1,5v ddr asa scrie in schema.

L am strapat in / out cu 2 diode 1n4007 in serie si a pornit tv ul. Dar le incinge tare.

Ma ajuta cineva cu o improvizatie? 

Prin laptop gasesc asa ceva ?

Pe acea bara scrie ca am 1A.

Edited by liviu_mad
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Eu vad ca acest ic este de 3A https://www.mouser.com/ds/2/277/MP2212_r1.01-478390.pdf

MP2212DN MPS je4

Pret: 6 RON

 

11Adauga in cos

Disponibil in stoc

 

Taxa de livrare nu este inclusa in pret ! Imaginile produselor au titlu informativ !

16V 3.0A Synchronous Step-Down DC-DC Converter (Constant Switching Frequency 600KHz), High Efficiency Switching Control Regulator for Portable Device, SO8 case. Cross Reference: 2212D MP2212 MP2212D MP2212DQ-QFN10 EAN57653801 Z7AD.

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Ramura din schema are 1 a probabil estre supradimensionat in realitate . Totusi nu inteleg dc sa defectat deodata. Nu am timp sa astept sa fac comanda .

Trebuie sa- l dau repede saca pot sa fac vreo modificare sau sa gasesc prin placi de laptop ca am mai multe.

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