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realc

problema TV Freeman 21NTV

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buna ziua,

 

am o problema cu un TV Freeman 21NTV.

cand porneste, primele aproximativ 5 minute, nu afiseaza corect scrisul ( in partea de jos).

dupa aprox 5 minute de functionare se vede perfect scrisul.

ma puteti ajuta cu aceasta problema?

 

multumesc!

 

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ar fi bine o poza cind vede rau eu cred ca vede defocalizat si trebuie schimbat soclu tk

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Si eu cam asta zic.Dar atunci nu numai jos ar trebui sa fie rau ci toata imaginea.

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Verificasi tensiunile furnizate de ... sursa ?

Filtraje schimbate pe bara de 110 si 180V ?

Edited by leoncris

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multumesc de raspuns. o sa postez mai tarziu si o poza,

in partea de jos unde e scrisul, imaginea apare parca "redimensionata".

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  schimba c.urile de filtraj de pe alimentarea cadrelor.

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Eu inteleg ca TV prezinta defectul tip "ridica fusta",care e din cadre.

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trebuie schimbati condesatori din baleaj vertical toti ca fara eser-metru 

si cel din driver

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trebuie schimbati condesatori din baleaj vertical toti ca fara eser-metru 

si cel din driver

ma poti ajuta sa-i identific?

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Driverul nu are treaba cu defectul asta.BVul si eventual alimentarea lui

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Ca in poezia lui G.Cosbuc "Trei Doamne si toti trei",acesta e numarul de condensatoare ce trebuie schimbate.Unu este de 100Uf si doua de 220Uf(sau 470Uf,cat de darnic a fost chinezu').

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