About 3 weeks ago we had a power surge at my home due to a lighting strike nearby. A few items close to my TV went out and had to be replaced but the TV still seemed to work fine. The HDMI ports that were plugged in stopped functioning, but the others seemed to still function. I had one of the internet apps lockup a few times, but no other issues. A few days ago, the TV stopped turning on completely. The back light would come on, so there was faint glow to the TV, but the red light on the front wouldn't show that the power was on.
We can't predict what might have been happened during a lightning strike. If the TV is dead now; the main power supply regulator board [SMPS] board is fault. If so, you have to replace it first. then only we can get information about the condition of the main board. If the TV was connected to external Ariel or cable; before the lightning stroke; the possibility to damage to the main board too is there upto 80%.
In fact, if both of this boards are damaged, it might cost around 2/3rd of the total cost of a new TV.
The decision left to you. Do whatever you want.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
SOURCE: No Picture
I would check the soldering first for any cracks, and any obvious faulty capacitors or components. It looks like the power board is going into a protective mode because of a short / failed component somewhere.
It would be virtually impossible to guess exactly where with a spot check..
SOURCE: Vizio GV47L not turning on after a pop noise
This exact thing happened to me on June 1, 2009. Identical pop, same with the power cord. No operational values. Was the problem the power supply or the inverter, or both/ something else?
SOURCE: Vizio TV wont turn on after three weeks no use
My vizio recently did the same exact thing. Vizio sent an HDTV tech out to fix it and it was the power board. He put a new board in (took 15 min) and the tv works like new.
SOURCE: I have the common "color contouring" problem (red
The T-CON board get the power from the logic board switched transistor that supplies the voltage to the T-CON board. Check to see if the 12vdc feeding the T-CON board is clean voltage and not higher than 12vdc. The problem can also be the logic board which sends the signals to the T-CON board. Does cooling the T-CON board with electronic freeze spray make the problem goes away. Some of the work I have to do is to install a small DC fan to keep the T-CON board cool and some time using heat sinks.
http://s807.photobucket.com/albums/yy352/budm/VIZIO%20L32HDTV10A/
http://s807.photobucket.com/albums/yy352/budm/LTV-32W3HD/
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
SOURCE: Vizio VX37L HDTV10A no picture
Hi.
You need change the Main board. You have a micropros. problem.
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