Hello everyone, first i just wanna thank anyone who takes the time to read and possibly help out.
My brother had a Vizio E320-B0 LED TV that the screen went out on and was going to throw it in the trash so i told him i'de take it and try to fix it.
Im fairly sure either the power supply board or the main board went bad, but this is my first time trying to repair a TV so its all very new to me. I'm mainly a PC person.
My biggest problem right now is i dont own a volt meter, so diagnosing which board is bad is kindof tricky, and i realize that it will be really hard for anyone to give me a definitive answer without one, but i'm hoping that it might be possible.
Here's whats happening. The TV turns on, the POWER LED shines and stays on, the TV stays on but the backlight isn't on. The backlight flickers for half a second once every 30 seconds or so and flashes the menu screen (i assume). Since the backlight and screen seems to be working but not getting steady power, im assuming its the power supply? I inspected the boards best i could but didnt see anything glaringly obvious. On the power supply board theres a small amount of corrosion it seems. I can't tell if any audio is working because i cant manage to get to the TV input without being able to see the screen. I've tried searching on google and on here but i cant find anyone who had this exact problem with the screen flickering every 30 seconds or so. I also tried vizio support chat but they told me to call for a technician to come look at it but that would probably cost more than the TV is worth.
Again, i understand its hard to diagnose without a volt meter but if anyone can give me some idea i would appreciate it. If not i may have to go out and buy one. Thanks again for any help! I really appreciate it!
My brother had a Vizio E320-B0 LED TV that the screen went out on and was going to throw it in the trash so i told him i'de take it and try to fix it.
Im fairly sure either the power supply board or the main board went bad, but this is my first time trying to repair a TV so its all very new to me. I'm mainly a PC person.
My biggest problem right now is i dont own a volt meter, so diagnosing which board is bad is kindof tricky, and i realize that it will be really hard for anyone to give me a definitive answer without one, but i'm hoping that it might be possible.
Here's whats happening. The TV turns on, the POWER LED shines and stays on, the TV stays on but the backlight isn't on. The backlight flickers for half a second once every 30 seconds or so and flashes the menu screen (i assume). Since the backlight and screen seems to be working but not getting steady power, im assuming its the power supply? I inspected the boards best i could but didnt see anything glaringly obvious. On the power supply board theres a small amount of corrosion it seems. I can't tell if any audio is working because i cant manage to get to the TV input without being able to see the screen. I've tried searching on google and on here but i cant find anyone who had this exact problem with the screen flickering every 30 seconds or so. I also tried vizio support chat but they told me to call for a technician to come look at it but that would probably cost more than the TV is worth.
Again, i understand its hard to diagnose without a volt meter but if anyone can give me some idea i would appreciate it. If not i may have to go out and buy one. Thanks again for any help! I really appreciate it!
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