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bluebear

Problema monitor samsung 943N culori

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Salutare,M-am pricopsit cu o problema la monitorul samsung 943n: nu mai pornea deloc -> sursa de alimentare a fost busita ( am schimbat 2 conzi) si am reusit sa-l pornesc. Problema este ca textul are o tenta destul de mare de rosu (in loc de alb) in modul boot pc (bios)(background negru) dupa care in windows totul are o tenta de rosu. Restul culorilor par ok.Cand scot cablul vga din monitor, apare acel mesaj "check video cable" si culmea culorile sunt ok. Cand pun vga la loc apare iar tenta de rosu .Banuiesc ca problema este la partea de video driver dar acolo nu prea am ce sa verific in multitudinea de smd-uri....Ceva pareri?P.S: modelul placii este BN41-00877A

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verifica semnalul de verde (G) incepand de la mufa de intrare DB15 pinul 3 pana la intrarea in cip...sigur ai ceva intrerupt pe acolo...tranzistor ars si/sau rez ...cand reparam monitoare (acum 150 milioane ani :rade: ) aveam un adaptor _ prelungitor de semnal facut din 2 mufe DB15 ,una tata si alta mama si cca 10cm cabluri...R,G,B,ground,V,H...cand aveam probleme cu vreo culoare schimbam intre ele R,G,B sau le conectam pe rand...

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Daca are tenta de rosu mai bine rescrie eepromul sau pune una goala.Din cauza sursei s-a alterat continutul memoriei .Succes!

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..nu au nici o legatura memoriile cu defectul...daca fara semnal de intrare osd este ok ..-24C02....IC202 The memory to which DIGITAL DDC data is input-24C08....IC203 Stores the OSD and various timing values-Flash Memory IC201....Stores the MCU program embedded in the scaler.Ii lipseste G...culoarea verde....de aceea apare ...mov_ul ala

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