Samsung 40" LCD tv model LN40B610A5FXZA won't turn on

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  • imaddicted2u
    Senior Member
    • Dec 2015
    • 101
    • Canada

    #1

    Samsung 40" LCD tv model LN40B610A5FXZA won't turn on

    Samsung 40" LCD tv model LN40B610A5FXZA
    It's been acting up for a while and has gradually gotten worse. I think it might be caused by bad power supply caps but none visibly look bad. It started working for a day, then reverted to the problem state.
    I'll describe the symptoms:
    Was working, it shut itself off, red standby led is lit, won't respond to power on from front panel or remote. When unplug/plugged back in it will sometimes have the standby led lit, other times the led is not lit, sometimes it will start up, show a display for a few seconds, then shut off. Two days ago it worked for the whole day, next morning, it turned on but in the evening the set would not turn on and hasn't since.
    I know I have to check the stand by voltage to start with but I'm open to other suggestions of things to check.
    I have another question, I'm gathering up some caps in case I have to replace any on the board. On the power board, there are 2 X 82MFD at 450volts in parallel. I have 2 X 100MFD at 450volts from a Samsung Series 5 LCD TV. Do you think using the 100s would hurt anything?
  • imaddicted2u
    Senior Member
    • Dec 2015
    • 101
    • Canada

    #2
    Re: Samsung 40" LCD tv model LN40B610A5FXZA won't turn on

    Sorry for double post. Please respond in other thread. Perhaps an admin could delete this one.

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