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calul

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 . 

 

Multumesc!

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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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