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HYUNDAI 28B8T47-SXS imagine slaba negativata

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Buna ziua ! Am primit acest TV la reparat , sasiu BEKO 14.2 cu urmatoarele probleme :


- pe intrarea de antena imagine A/N slaba negativata ( contrast redus )

- in colt imaginea PIP se vede color 5 sec ( la introducere antena ) si apoi A/N permanent

- pe iesirile AV EXT imagine A/N slaba negativata ( contrast redus ) sursa de semnal antena


Singura imagine normala se obtine folosind inrarile AV EXT. 


Detalii sasiu 14.2 cu PIP:


proc +proc video ON8365H/N3/4

proc sunet MSP3410G B8 V3

B.V.  TDA8359J

sursa 44608p40

sunet TDA7263

tk   a66ehj13x62  110 grd 4:3

telecom BEKO 12.5


Am folosit manualul service de la GRUNDIG : grundig_chassis_14.2_mfw_70-2500 varianta sedance 70.


Am cautat pe forum dar nu am gasit ceva asemanator .


Sunt deschis la orice sugestie . 



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Tensiunile pe sursa sunt OK . Am intrat in menu service si am ajustat valorile setarilor conform cu manualul . Defectul nu s-a schimbat .

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