Good evening everyone -
I have a Samsung LN32A300J1D in the garage. The unit turns on with the standard Samsung start up sound, but there is no video on the screen as the backlights are not turned on. I have confirmed that there IS video however -- I can definitely see video output on the display if I shine a flashlight at an angle against the panel.
There is NO voltage along the thick blue and white wires to the left or right balance boards. To verify that there isn't something shorting out, i disconnected the blue & white wires at the PSU board and measured the output voltage at the respective connectors - CNI801 and CNI802. I read zero volts.
The PSU board part number is BN44-00150A and looks like the image that i attached from ShopJimmy. The connectors in question are in the lower right corner in the image.
Does anyone have the service manual for the BN44-00150A? I ideally would like to debug the backlight inverter voltages instead of purchasing a new power board.
The only thing I've done to this power board thus far is replace three caps on the cold side. I thought it would just be a really easy fix...
Thank you,
Thomas
I have a Samsung LN32A300J1D in the garage. The unit turns on with the standard Samsung start up sound, but there is no video on the screen as the backlights are not turned on. I have confirmed that there IS video however -- I can definitely see video output on the display if I shine a flashlight at an angle against the panel.
There is NO voltage along the thick blue and white wires to the left or right balance boards. To verify that there isn't something shorting out, i disconnected the blue & white wires at the PSU board and measured the output voltage at the respective connectors - CNI801 and CNI802. I read zero volts.
The PSU board part number is BN44-00150A and looks like the image that i attached from ShopJimmy. The connectors in question are in the lower right corner in the image.
Does anyone have the service manual for the BN44-00150A? I ideally would like to debug the backlight inverter voltages instead of purchasing a new power board.
The only thing I've done to this power board thus far is replace three caps on the cold side. I thought it would just be a really easy fix...
Thank you,
Thomas
Comment