Samsung LN32A550 Backlight Issue

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    Things i've tried so far; reinstalled Windows 10, checked for redundant boot entries, tried to factory reset using the emergency keyhole, attempted to clear the NVRAM by physically...
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  • x_orange90_x
    Vizio E55-E1 bad backlights or bad inverter?
    by x_orange90_x
    I just got this tv today and it appeared to have no backlight on. After taking off the rear cover and checking again in the dark I can see that MAYBE one quadrant is lit.. But still it's quite dim. I was going to check the LEDs with my tester, and I found LED 1 and LED 2 + pins on the wire from the inverter, but I couldn't identify a ground. Nonetheless I tried using a mounting screw on the inverter board and also the chassis as ground but regardless my tester reads 300 which is what it reads when there is no voltage draw.

    I don't know how exactly to test the inverter itself. Is it...
    01-29-2025, 09:24 PM
  • Nairolf
    Samsung DM32D – Red LED blinks 5 times, won’t start (possible mainboard issue)
    by Nairolf
    Hello,

    I have a Samsung DM32D display.
    When I try to power it on, the red LED blinks 5 times and nothing happens—the unit won’t start.

    Here’s what I have tried so far:
    1. Disconnected the cable between the mainboard and the power supply → the backlight turns on.
    2. Disconnected the main T-CON ribbon cable → same issue as before, the LED still blinks 5 times.
    3. Disconnected one of the two T-CON ribbons to the panel (tested each one separately) → same issue, the LED blinks 5 times.

    From these tests, I suspect the problem might be on the mainboard. Could anyone...
    3 Photos
    08-24-2025, 03:47 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
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