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looking for E131175PCB

Discussion in 'Troubleshooting and Repair' started by duncanB, Oct 14, 2012.

  1. duncanB

    duncanB

    2
    0
    Oct 14, 2012
    hi
    i,m looking for a E131175PCB in glasgow,,can anyone help
     
  2. davenn

    davenn Moderator

    13,242
    1,742
    Sep 5, 2009
    hi Duncan,
    welcome to Electronics Point Forum :)

    mite help if we knew what a E131175PCB was,
    is it a complete unit, possibly a circuit board module
    what make and model of gear is it out of ??

    Dave
     
  3. duncanB

    duncanB

    2
    0
    Oct 14, 2012
    LG screen

    hi dave

    sorry silly me its from a LG screen checked all the capacitors and they look ok ,its just got a black screen when I boot the screen up

    cheers
     
  4. Jotto

    Jotto

    120
    0
    Aug 24, 2012
    Can you list the model number of the LCD.

    When turned on, does it come on briefly (lamps)? If so, then you need to check voltage in, is the switched voltage working properly? Also check brightness. These are voltages going to the inverter board. If not, then check the fuse on the inverter first.

    If all the voltages are good, then you will need to look at your lamps, you can simulate lamps with a resistor (50K 10Watt in series). I use 7 resistors and tap where I need it. You must use a balanced load on all the lamps.

    Vcc is usually 12, 24 or 48 volts, switched voltage varies depending on unit. Adjust voltage is a step voltage for increasing or decreasing the brightness.
     
    Last edited: Oct 16, 2012
  5. CocaCola

    CocaCola

    3,635
    4
    Apr 7, 2012
    That board seems to be used in a lot of monitors, there are a bunch of them on them on Ebay...
     
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