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samnabass
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Last Activity: 12-31-2012, 07:45 PM
Joined: 02-28-2009
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  • Weird L1955 LCD monitor CCFL

    Hi, I wonder if anybody can advice on this
    The monitor main problem was a flashing power LED .
    I did replace the two bad 5707's the other two checked OK
    The bottom CCFL SMT 4431 was completely fried and fried the trace too. I did manage to replace it to find that the small 3 leg transistor (if not mistaking) right next to it is fried too so I replaced it. the back light came back alive while the top back light stays off which was really weird !!!, If I bush the start button the top light will come on too not as bright as the bottom one. If I push the button to turn it off...
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  • Re: Planar PL1910M LCD will not power on

    Hi, Thanks for the info - i did check as much as i can with no luck - i spend too much time on this board and i think it's time for it to be recycled.

    Take Care.
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  • Planar PL1910M LCD will not power on

    Hi to all.
    This monitor has been driving me nuts for the past two days and I just can't figure it out so i came in for some help.
    The main problem is the monitor will not turn on just a flashing LED on the ON button.
    The back lights were checked to be OK
    All the caps checked ok with and ESR Tester.
    All the diodes checked OK – Desolder one leg and test with a smart tweezers.
    MOSFET Tested Ok.
    Resolder all the joints on the back side.
    And still no go – so I figured maybe I should try to power it from an external power adapter but there...
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