Question about Vizio GV42L 42 in. LCD Television
The blue screen is what is displayed when no signal is received. The tv goes to stand by after 5 seconds without signal to save energy and minimize the wear on the tv. Both behaviours are absolutely normal. The first thing you should do is to check the cables that plug at the back of the tv, they might be loose or even unplugged.
You haven't told us how do you receive the signal (direct cable, antenna or some sort of receiver) so all i can tell you is to check the tv using another source like a dvd player and the source used now by connecting it to another tv. In one of these cases the faulty part will not work. If it's the tv then the AV selector (or the tuner) is defective and you will have to call a repairman to replace it - only them have access to replacement parts.
If it's the cable or the receiver then you will have to call the company that install it.
Posted on Oct 15, 2010
Make a step by step troubleshooting and start on the power supply first this is where all the system starts...replace first all bulging capacitors...and measure the voltage output afterwards...5v,12v and 24v must be stable and present...next check the tuner board make sure that the connections are intact and fitted the terminals.resolder all the terminal post of the interconnections terminals...poor connections can cause a voltage drop and will cause the machine to shutdown...try to directly connect a dvd player to your tv and see if a picture appear and play fine...if it does then that is a tuner board problem...not detected by the system..
do this first and let me know what happen...good luck pls rate my help by clicking the thumbs up butoon.
Posted on Oct 16, 2010
Does it make a clicking noise beore it turns o? Does the LED at the front change color?
Posted on Oct 15, 2010
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Posted on Jan 02, 2017
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