ln32a300 dark picture

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  • Danstona
    LG 65UK6090PUA - picture dark
    by Danstona
    Was watching this set, and suddenly it went dark. Picture is still visible, just very dark. Tried checking all settings, adjusting brightness to 100% no change. Reset through menus, no change.
    bought used boards from ebay (power and input boards) replaced with same results, changing brightness does seem to have a slight affect.. but not to normal visibility of picture.
    I'm handy, fixed TVs before.. I can't see any issues with boards... hoping someone can point me in the right direction to properly diagnose. I don't believe the LEDs are caput, since the picture is on and equal...
    03-10-2024, 12:41 PM
  • Fly_Among_Stars
    VIZIO E70-E3 Half picture with half TCON
    by Fly_Among_Stars
    Hi,
    I have a VIZIO E70-E3.
    Symptoms: Black screen, no picture, but LED backlights are working.
    I probed the power board and voltages are as listed on the board.
    Main board appears fine, too.
    I believe the problem is either a bad T-CON board, or connection to LCD, or bad LCD.
    There are two separate ribbon cables feeding the LCD.
    If both are connected, the screen is black.

    If only the ribbon cable that feeds the right side of the screen (when viewed from the front) is disconnected, the left side of the screen shows picture and...
    04-24-2023, 08:20 PM
  • iglitare
    Sony KD-75XF9005 grey Picture but Sound. TCON or panel?
    by iglitare
    Hi,

    i want to repair a Sony KD-75XF9005 TV that initially only showed a grey picture.
    Backlight seems to work, Sound (Setup menu after reset) works.
    If i dissconnect the left FFC cable from TCON to panel i have half a screen on the right. If left cable is connected always only the grey screen.
    Interchanged the cables, its always only the right side that is working. Always grey if left side is connected.
    With my small knowledge i would think at least the cables are good.

    Can this happen because of a bad tcon board?
    Or is it always a bad/shorted...
    09-04-2025, 07:13 AM
  • Bazfletch3
    Panasonic TH-65FX800A backlight LED's working but picture is very dark
    by Bazfletch3
    Hi all

    While I have quite a decent background in electrical & electronic troubleshooting & repairs, this is my first time stripping down an LCD TV for repair.... I have inherited a 3yr old Panasonic LCD which has a picture, but it is quite dark (too dark to be watchable - but still quite easy to see; I didnt need a torch to see it).

    I started by checking and trying to adjust all of the picture and backlighting levels, but that made little to no difference. I also did a factory reset.

    From there I envisaged that the backlighting wasn't working, however...
    01-08-2024, 10:18 PM
  • shelby5041
    Samsung LCD TV no picture backlight on no 12v at tcon
    by shelby5041
    hi
    i have a samsung lcd tv

    it powers on with sound and backlight but no picture

    all voltages from PS are good 12v 3.3v and 5v

    whats odd is that at the tcon i tested voltage across the fuse on the tcon and i get 0v

    i figured main board issue..so i ordered a used main board....when i put replacement main board in i still have same issue

    no 12v at the tcon fuse

    i disconnect the panel ribbon cables to rule out any panel issues and i still have no 12v at the tcon fuse

    the odds of having 2...
    10-08-2021, 08:21 AM
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