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ELFORUM - Forumul electronistilor
POLAKU2002

monitor hp pf 803

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buna seara.acest monitor se aprinde ptr citeva secunde imaginea si apoi dispare dar ledul ramine verde,am presupus ca sunt faimosii 5707 sau fu9024 dar surpriza nu sunt acestia .am masurat pe pf 701 si 0v...dar pe catodul diodei yg 862 sun 13v....iar in anod 0v....am verificat c de balast si rezulta buni la fel si traf dar la acestia trebuie sa ma mai uit....cum as putea anula protectiile asigurate de tl 1451a ptr a depista traful dus sau cu probleme?celelalte tensiuni snt prezente

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nu trebuie sa anulezi protectia ca sa depistezi defectul,redu nivelu de lumina si contrast sub 30%,ca sa vezi imaginea foloseste o lanterna sau o alta sursa in fata ecranului in-cat sa vezi meniul,verifica trafo.invertor masoara rezistenta pe secundar unde este undeva intre 600-1500 omi sa nu fie intrerupt.

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