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marconi18
New Member
Last Activity: 06-07-2023, 02:14 PM
Joined: 08-25-2013
Location: Lidzbark
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  • Re: Philips 42PFL7422D/37 power supply issue

    [B]budm[/B] I was check almost every part of Primary Side this board(resistor 3318 is good).
    [B]PhilipsKSI[/B] I have a transformer from 220/110V.
    Are there any test points or any standard Voltages on this board which I should check to make sure that I go right way?
    I'm just a beginner so I'm asking...
    I have a question. I was connect this broken board on my table, giving +5V from LAB Power Supply to 7th pin of 1P11 connector. How can I simulate START this board? Which of pins I should cross/close ?
    ...
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  • Philips 42PFL7422D/37 power supply issue

    Hi, recently I bought a broken Philips 42PFL7422D/37. I'm electronics hobbiest so I wanna try to fix it. If I try to turn it on, there wasn' t any sound or picture. There's heard only click.
    I replaced the parts which were bad (by visual) and some kind of diodes after checks. I was download manual service and then checks almost everything. There is only 120V AC out to main board (1P02); four big caps have about 152V DC; MC34067P on 15 pin there is growing and falling DC voltage (9-15,26V). I think it will be easier to show my measure on Block Diagram.
    Could You help me? What I...
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  • Re: New Members - please post your introductions here

    I'm a new guy who come into electrical world.
    Best regards for everyone.
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