LG tv flickering

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  • stylishconsultant
    un60j620dafxza - Samsung No Display Problem
    by stylishconsultant
    Hi All,

    Need help.

    I have a samsung un60j620dafxza led tv. When I plug it in it has no display, no sounds, and no standby lights.

    So I opened the tv and disconnected the power to the mainboard and the backlight powered up. This according to many people says that this is a mainboard
    problem. I checked the voltage coming from the stb and I read 1.3 volts on pins 1,3,5 and 7 which are low volts instead of 13 volts which i think the lcd panel
    might be drawing too much power from the power supply that it prevents the right voltage going to the mainboard....
    09-04-2024, 03:26 AM
  • max789
    Samsung UE48H6410 replaced Mainboard but backlights doesnt go on
    by max789
    Hello, I have a problem with my Samsung UE48H6410SSXZG with the main board BN41-02156A and the power board BN44-00709A. Everything seemed like this, the TV could no longer be switched on, the standby LED always flashed 5x2 times. Backlight was off and no sound from TV. Also made the flashlight test and there was no picture.

    I made the following tests:
    1. Disconnected the main board from Power Board = backlight works.
    2. Connected the main board and disconnected the T-Con = backlights does not work.

    So I ordered a main board from Ebay also BN41-02156A but from...
    01-18-2024, 06:56 AM
  • Pipolups
    Corsair K70 LUX RGB dying LEDs
    by Pipolups
    Hi there !

    I'm having an issue for several weeks with my quite old K70 LUX RGB keyboard. I haven't used it for few months, and once I setup up again my desktop computer, I got several dead LEDs on that keyboard. I tried the Corsair troubleshooting thing (disabling options in iCUE, ...) but nothing changed so I conclude that for some reason some LEDs went in retirement...😅
    Decision taken to change these LEDs as I have access to desoldering iron and binocular magnifier, I wrote a ticket to tech support, hopping to obtain the LEDs reference and... They refused to tell me 🙄...
    10-08-2024, 11:58 AM
  • reessi
    ACER BM320 Monitor - Horizonal Flickering Lines After a While
    by reessi
    Hello,

    The monitor started off showing flickering thin (1 pixel) lines horizontally every say 3mm..

    They are black on the right and gradually fade to nothing on the far left.
    They start either after 5 mins or up to 2 hours after so annoying for testing.
    They flicker continuously very fast! With a slight pause milli-second every second.

    Initially I cleaned the LVDS cable and connected to the T-Con and then it worked fine for 3 weeks but not sure if this was just co-incidence.

    I tested each half by removing the first the left flex from...
    06-03-2025, 09:58 AM
  • noinimod
    Sony 55X900E no standby light, no power. Replaced mainboard already
    by noinimod
    No standby red light, nothing
    This Sony has a separate AC->DC power adapter supplying 19.5V to the TV power board (JK3)



    Disconnected JK3 power board from main board, checked voltages on all the pin outs

    At a few pins I can see the power supply providing 19.5V to the main board



    Based on the service manual triage.. it seems to be pointing towards the power board (JK3) being the most possible culprit


    LED light turns on when I disconnect LED driver board ribbon from mainboard (so i thought it is the mainboard,...
    12-22-2021, 12:58 AM
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