Question about Televison & Video
Check the flat connection wire [LDVS] cable that connects the T'Con board and LCD panel for any loose contact. Re-set it once and check. If it do not help yoy, the T'Con board should be replaced It is faulty. If you wish to get more details, check this site linked below. Pull up older posts there. Check the site with patience, as it has over 2350 posts now. All are related to electronic equipment repair help. If you search the site in Timeslide option, which can be selected from the drop down list at the top left of the display window, it will be easy to locate the related post. You can also do a search by type in the brand name to your device into its search box at the top right of display window. http://electronicshelponline.blogspot.com/
Posted on Apr 30, 2013
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Posted on Jan 02, 2017
Could be power board, could be main board, could be LCD controller and lastly - very unlikely yet possible - could be cables or rather cable connections.
It would help a lot if you post a screenshot or, better yet, a video of the distortion.
I somehow do not relate "distortion" and "blacking out".
Yet if I had to make a pick based on what you say and my experience I'd look at the main board first.
You should be able to get a replacement for under $100 at eBay and if you know what a screwdriver is you should be able to replace it yourself - a slow, but certainly not difficult process even if you do it for the first time.
Still I don't recommend spedning money before sharing more details and getting a more informed guidance as to where to look.
Posted on Nov 02, 2009
Testimonial: "that sounds like an excellent solution. I'm going to give a call to vizio to ask for all the required parts and take your advise and do it myself. ty!"
This is often called the "Soap Opera" effect...I had a similar problem and found that changing the settings helped tremendously. Here are the settings I use:
Picture Mode: Movie
Noise Reduction: strong
Color enhancement: off
Advanced Adaptive Luma: Off
Enhanced Contrast Rato: off
Color Temperature: Normal
Smooth Motion Effect: low
Real Cinema Mode: Precision
Also, there's a great thread on the Soap Opera effect here:
Posted on Mar 18, 2010
verify if it only happens on the antenna/cable input and if it works fine with dvd or other input, then it is a signal issue with the cable or antenna u r using and repair that problem and not the tv
Posted on Apr 18, 2010
It sounds like failing T-CON board.
Please see my basic troubleshooting guide here:
Posted on Jun 27, 2010
SOURCE: vizio model sv470m screen went
Blank on ALL video modes?
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.
Posted on Feb 16, 2011
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