Hi Guys, i posted this message yesterday and now i cant find it anywhere on the forum so now i am going to repost.
I have added pictures to assist in your understanding.
Originally this set would come up bright and back lights would switch off intermittently. I opened up the panel and saw that all the LED's do come on but then at a point thy all just fade off. I checked around the PWM controller and at some point while measuring the LED's went dim. I can still see a blueish light emanating from the rear of the TV and am measuring 38.6V on the LED+ line with respect to chassis gnd. On the 6 LED- lines i get 1.6V.
Would this indicate a failed power supply or can it be the back lights causing this dim light issue?
I bought myself a LED backlight tester but i dont know if its a quality unit because it only indicates the LED voltage once connected to a LED string.
I get LED's brighting up somewhat with a voltage indication of about 41V on the tester.
My question is is it the power supply or the back lights?
I have added pictures to assist in your understanding.
Originally this set would come up bright and back lights would switch off intermittently. I opened up the panel and saw that all the LED's do come on but then at a point thy all just fade off. I checked around the PWM controller and at some point while measuring the LED's went dim. I can still see a blueish light emanating from the rear of the TV and am measuring 38.6V on the LED+ line with respect to chassis gnd. On the 6 LED- lines i get 1.6V.
Would this indicate a failed power supply or can it be the back lights causing this dim light issue?
I bought myself a LED backlight tester but i dont know if its a quality unit because it only indicates the LED voltage once connected to a LED string.
I get LED's brighting up somewhat with a voltage indication of about 41V on the tester.
My question is is it the power supply or the back lights?
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