Samsung UE48H6270SSXZG
Power supply is BN44-00709A
Mainboard is BN94-07385J
Got this TV from Ewaste.
Symptoms
The power LED comes on when plugged in. After pressing the power button the backlight lights up and stays lit. The Samsung Smart TV logo fades in and out. After that the display stays black and doesn't react to buttons on the TV or remote. TCON board has 3 blue LEDs which are lit. A small part of the backlight seems to flicker when the TV is powered up. TV shuts off after some minutes.
Attempted troubleshooting
- Disconnected TCON board
- Disconnected backlight from PSU
These didn't seem to make a difference.
My question is, shouldn't the TV power up if it was just a backlight issue and if it was disconnected? Or is this likely also mainboard/firmware issue?
I haven't done any measurements yet and to be honest am not sure which ones I should do.
Power supply is BN44-00709A
Mainboard is BN94-07385J
Got this TV from Ewaste.
Symptoms
The power LED comes on when plugged in. After pressing the power button the backlight lights up and stays lit. The Samsung Smart TV logo fades in and out. After that the display stays black and doesn't react to buttons on the TV or remote. TCON board has 3 blue LEDs which are lit. A small part of the backlight seems to flicker when the TV is powered up. TV shuts off after some minutes.
Attempted troubleshooting
- Disconnected TCON board
- Disconnected backlight from PSU
These didn't seem to make a difference.
My question is, shouldn't the TV power up if it was just a backlight issue and if it was disconnected? Or is this likely also mainboard/firmware issue?
I haven't done any measurements yet and to be honest am not sure which ones I should do.
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