Question about Vizio GV42L 42 in. LCD Television
Sounds like the back light is going out or a connection to the back light has loosened of the years
Posted on Oct 17, 2013
Testimonial: "Hello Kelly: I will get a friend to look at the "back light" or the aformentioned connection. I appreciate the suggest potential problem. If it's a back light going out, and dying a slow death, what does it cost to replace? Thank you! Best regards, Steve"
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Posted on Jan 02, 2017
It's probably a loose flex cable inside. Look on the web and find someone near you
Have a service tech check it inside for you
Posted on Apr 22, 2010
It can be that the 12/24vdc power supply go into shut down mode due to short circuits in the backlight inverter board. You need to check the output voltages of the power supply with and without the backlight inverter board connected to the power supply.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx
Posted on Aug 11, 2010
SOURCE: Vizio 46" Gallevia Flat Screen
any display in the corners of channel number av etc ?? if you turn the volume up and down does that show on the display if not likely to be a dead panel
Posted on Dec 09, 2010
I w having this same issue when watching a Blu-Ray disc. I found it to be dependent upon what picture mode the TV was set to. By this I mean certain picture modes would cause the TV to dim during dark scenes of a movie. Changing the picture mode helped a lot.
Posted on May 26, 2011
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