Hi everyone, I have a Semp Toshiba Tv model LC2346WDA with the following problem: It turns on, oudio works but i have no backlight, it's a CCFL tv.
I've checked the logic board and it's working like a charm, the problem is the power supply itself, it uses a kip+l072u04c2-01-01 power supply, it has the 12v 3.3v and 5v but the CCFL lamps don't turn on. It uses a UBA2072T CCFL ic controller.
Checking the schematics i've found that the controller is receiving power and the ENable pin line is present.
I've noticed that I am lacking GHA line from the controller and I am lacking some lines as shown in the picture attached. (I also uploaded the schematics)
How can I be solving this problem so the power supply gives me backlight?
I've checked the logic board and it's working like a charm, the problem is the power supply itself, it uses a kip+l072u04c2-01-01 power supply, it has the 12v 3.3v and 5v but the CCFL lamps don't turn on. It uses a UBA2072T CCFL ic controller.
Checking the schematics i've found that the controller is receiving power and the ENable pin line is present.
I've noticed that I am lacking GHA line from the controller and I am lacking some lines as shown in the picture attached. (I also uploaded the schematics)
How can I be solving this problem so the power supply gives me backlight?
Attached Files
