Tv mainboard bn41-00975b

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • techman1025
    Badcaps Veteran
    • Jun 2014
    • 497
    • United States

    #1

    Tv mainboard bn41-00975b

    Hi
    I have here three pads lifted on this BN41-00975B mainboard on the audio IC1203 if anybody has a schematic or can tell me where pin's 18-32 run to...4 has the trace showing so that an easy one ... the other two have no traces showing .
    Thanks
    Techman1025

Related Topics

Collapse

  • Mirenia
    Dell Latitude 7420 - Touchscreen not working since Mainboard replacement
    by Mirenia
    Hi everyone,

    I've got a little "problem child": my Dell Latitude 7420 2-in-1, which had a faulty mainboard.
    I replaced it, but ever since, the touchscreen no longer works — and honestly, I’m running out of ideas…

    In Windows Device Manager, I just see an I2C HID Device with error code 10. Sporadically, the touchscreen is recognized correctly for just a few seconds, but I haven’t been able to determine under which circumstances this happens.

    The touchscreen also doesn’t work in UEFI/BIOS, although it’s enabled...
    03-30-2025, 06:47 AM
  • Devonavar
    Vizio M43-C1 - How closely do I need to match the mainboard number?
    by Devonavar
    I have a Vizio M43-C1 stuck in a reboot loop with no backlight.

    I've tested all the voltage rails coming out of the power supply and they are "normal" for this model (PS_ON & DIM go high when turned on, BL_ON & 3D_ON are close to zero due to backlight power flowing through the mainboard, 5VSB is 5V, and 12V is 19V, which is apparently normal for this board).

    Basically, I get similar results to Garry in this post: https://www.badcaps.net/forum/showthread.php?t=80346

    So, I've ruled out the PSU for now.

    The reboot loop...
    08-14-2022, 08:46 PM
  • Malva
    Problem LG 49UB850V (Mainboard: EAX65684604 / EBT62954607)
    by Malva
    Hi everyone,
    I'm trying to repair my LG 49UB850V TV (WebOS 1.0, UHD model from 2014).
    Mainboard model: EAX65684604
    PCB marking: EBT62954607
    SPI chip: Winbond W25X20CLNIG Problem description:


    Originally, the TV would turn on (backlight and LED OK if I force them on), but it shut down as soon as any input was received from the IR sensor or remote. The backlight and power board were working fine.

    After testing and verifying the voltages (DRY ON, PWR ON, 12V/24V rails), I suspected a corrupted SPI firmware. What I tried so far:
    • I bought another
    ...
    06-25-2025, 02:07 PM
  • l0lhaxz1
    QN65QN90A - Mainboard MLCC failed - now bootloop
    by l0lhaxz1
    Hi

    I have a QN65QN90A which was purchased around launch I guess making it about 1.5-2 years old... had been working fine until a few days ago, simply went black and would no longer turn on (at all). No standby light and no typical PSU relay click etc. Absolutely dead.

    Pulled it apart without doing much research first, suspecting the power supply as it had a faint buzz (I guess due to the forthcoming found short), investigated PSU for some time and concluded there was no fault that I could spot with the board removed.

    Came to learn after a bit more research...
    02-06-2023, 08:59 AM
  • Jembang
    coocaa 50S5G smart tv dropped voltage when connecting power supply to mainboard
    by Jembang
    good day hoping someone can lend a hand, im repairing smart tv 50 inch, status when turning on back light is dim but you can see the tv logo then slowly fading out to black, i check the supply to tcon, i only read 5+v, must be 12v, i removed lvds cable and check voltage to mainboard turned on its also 5v, then i remove the cable mainboard to power supply, i read 12v in power supply, thinking that the problem is in the mainboard, coz theres 12v in power supply, i also check while turning on checking volts in main board 12v dropping to 5v, im just new repairing in TV, hope someone see my post t...
    11-01-2024, 09:55 AM
  • Loading...
  • No more items.
Working...