Hi Everyone,
Background:
I am new here, but I was hoping that somebody could help me. A few months ago, during a big storm, my mom and sister were watching TV when the power went out. When it came back on, their Vizio vw37l TV would not turn back on. Now that school is out (I will be starting college at IIT in the fall), I am back home and trying to get it fixed. They have already bought a new TV, but said that if I could fix it then I can have it. I am sort of good with electronics, but by no means a pro.
What I have done so far:
I read up about similar problems and without thinking ordered a new power supply (0500-0505-0420). I put that one in and nothing changed. Then I did some more research and came across this great thread (https://www.badcaps.net/forum/showthread.php?t=17997). I read it through which led me to think that my problem might also be a bad main board. I was hoping to get the opinion of someone else on what might be my problem before I go and purchase another board. I have done some basic voltage testing and my results can be found by the corresponding pictures below. Also, when I plug the TV in, the amber Vizio light on the front light lights up. When I push the power button on the side of the TV, the amber light turns white (like the TV is turned on). It stays that way for about 40 seconds and then the light turns back to the amber color.
The entire back of the TV with the cover removed:
The power supply:
The main board:
A mystery board (what does is do?):
Close up of pin 1 and 2:
Pin 1 voltage results:
Pin 2 voltage results (the voltage on the last 5 pins decreases by .01 volts per second after the power is turned off):
Finally, the volt meter that I have to work with (good but not the best, and I have no other electronics tools, except some spare resistors and leds):
Hopefully this is enough information to get a good response. If you need more information, feel free to ask. I would like to learn what my problem is and don't mind doing a bunch of testing in order to learn about electronics. I also don't mind ordering parts, as long as they are not more expensive than buying a replacement TV.
Thanks in advance!
Background:
I am new here, but I was hoping that somebody could help me. A few months ago, during a big storm, my mom and sister were watching TV when the power went out. When it came back on, their Vizio vw37l TV would not turn back on. Now that school is out (I will be starting college at IIT in the fall), I am back home and trying to get it fixed. They have already bought a new TV, but said that if I could fix it then I can have it. I am sort of good with electronics, but by no means a pro.
What I have done so far:
I read up about similar problems and without thinking ordered a new power supply (0500-0505-0420). I put that one in and nothing changed. Then I did some more research and came across this great thread (https://www.badcaps.net/forum/showthread.php?t=17997). I read it through which led me to think that my problem might also be a bad main board. I was hoping to get the opinion of someone else on what might be my problem before I go and purchase another board. I have done some basic voltage testing and my results can be found by the corresponding pictures below. Also, when I plug the TV in, the amber Vizio light on the front light lights up. When I push the power button on the side of the TV, the amber light turns white (like the TV is turned on). It stays that way for about 40 seconds and then the light turns back to the amber color.
The entire back of the TV with the cover removed:
The power supply:
The main board:
A mystery board (what does is do?):
Close up of pin 1 and 2:
Pin 1 voltage results:
Pin 2 voltage results (the voltage on the last 5 pins decreases by .01 volts per second after the power is turned off):
Finally, the volt meter that I have to work with (good but not the best, and I have no other electronics tools, except some spare resistors and leds):
Hopefully this is enough information to get a good response. If you need more information, feel free to ask. I would like to learn what my problem is and don't mind doing a bunch of testing in order to learn about electronics. I also don't mind ordering parts, as long as they are not more expensive than buying a replacement TV.
Thanks in advance!
Attached Files
Comment