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Questions & Answers
Not turn on but the vizio sign light lites
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first
. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
The problem could be the inverter board, but it could also be that one or more of the backlanps is drawing too much current thus causing the inverter to fail. backlamps draw more current as they age. Many in the profession also recommend replacing your both the master/slave inverters together in a set!
Vizio SV470XVT1A makes screeching sound
This sounds as if it could be a ballast problem, or a switching power supply transformer problem. Both of these can produce this sound. I would suggest that you have a qualified TV technician repair this set due to the dangerous voltages and currents that could be present. In my experience with these TV I would have the technician pay special attention to the power supply board and the backlight/inverter section which includes the ballast used to fire the backlight.
I hope this helps,
Screen turns black but still can hear voice
The TV has backlight problem. For more details type in
this site name "Electro-help"
NOT copy and paste the site name from here.
It may lead you to wrong place
) to search box of your search engine
[not in the address bar of your browser
], and press "Enter". It is an electronic equipments service help
position of hyphen in between words in site name. The site will appear as it is in
web; subtitled as Service help to electronic home entertainment equipments.
Pull up older posts.
You can locate this site,
either at the bottom part of first search page, or at the top of second.
Detailed descriptions are there to help you.
Vizio sv47m connected to a laptop with a HDMI
If the same issues comes up with all the inputs then it is possible that the main board/processor encounters with an error and shuts off.the possibility of a dry connection or a thermal related issue cannot be ruled out. You can remove the panel and use a good ventillation with a blower fan to see if the fault timing changes. If so check for heat on the board to confirm the suspected component.
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